1 | // Copyright 2018 The Go Authors. All rights reserved. |
---|---|
2 | // Use of this source code is governed by a BSD-style |
3 | // license that can be found in the LICENSE file. |
4 | |
5 | package packages_test |
6 | |
7 | import ( |
8 | "bytes" |
9 | "context" |
10 | "encoding/json" |
11 | "flag" |
12 | "fmt" |
13 | "go/ast" |
14 | constantpkg "go/constant" |
15 | "go/parser" |
16 | "go/token" |
17 | "go/types" |
18 | "io/ioutil" |
19 | "os" |
20 | "os/exec" |
21 | "path/filepath" |
22 | "reflect" |
23 | "runtime" |
24 | "sort" |
25 | "strings" |
26 | "testing" |
27 | "time" |
28 | |
29 | "golang.org/x/tools/go/packages" |
30 | "golang.org/x/tools/go/packages/packagestest" |
31 | "golang.org/x/tools/internal/packagesinternal" |
32 | "golang.org/x/tools/internal/testenv" |
33 | ) |
34 | |
35 | // testCtx is canceled when the test binary is about to time out. |
36 | // |
37 | // If https://golang.org/issue/28135 is accepted, uses of this variable in test |
38 | // functions should be replaced by t.Context(). |
39 | var testCtx = context.Background() |
40 | |
41 | func TestMain(m *testing.M) { |
42 | testenv.ExitIfSmallMachine() |
43 | |
44 | timeoutFlag := flag.Lookup("test.timeout") |
45 | if timeoutFlag != nil { |
46 | if d := timeoutFlag.Value.(flag.Getter).Get().(time.Duration); d != 0 { |
47 | aBitShorter := d * 95 / 100 |
48 | var cancel context.CancelFunc |
49 | testCtx, cancel = context.WithTimeout(testCtx, aBitShorter) |
50 | defer cancel() |
51 | } |
52 | } |
53 | |
54 | os.Exit(m.Run()) |
55 | } |
56 | |
57 | func skipIfShort(t *testing.T, reason string) { |
58 | if testing.Short() { |
59 | t.Skipf("skipping slow test in short mode: %s", reason) |
60 | } |
61 | } |
62 | |
63 | // testAllOrModulesParallel tests f, in parallel, against all packagestest |
64 | // exporters in long mode, but only against the Modules exporter in short mode. |
65 | func testAllOrModulesParallel(t *testing.T, f func(*testing.T, packagestest.Exporter)) { |
66 | t.Parallel() |
67 | packagestest.TestAll(t, func(t *testing.T, exporter packagestest.Exporter) { |
68 | t.Helper() |
69 | |
70 | switch exporter.Name() { |
71 | case "Modules": |
72 | case "GOPATH": |
73 | if testing.Short() { |
74 | t.Skipf("skipping GOPATH test in short mode") |
75 | } |
76 | default: |
77 | t.Fatalf("unexpected exporter %q", exporter.Name()) |
78 | } |
79 | |
80 | t.Parallel() |
81 | f(t, exporter) |
82 | }) |
83 | } |
84 | |
85 | // TODO(adonovan): more test cases to write: |
86 | // |
87 | // - When the tests fail, make them print a 'cd & load' command |
88 | // that will allow the maintainer to interact with the failing scenario. |
89 | // - errors in go-list metadata |
90 | // - a foo.test package that cannot be built for some reason (e.g. |
91 | // import error) will result in a JSON blob with no name and a |
92 | // nonexistent testmain file in GoFiles. Test that we handle this |
93 | // gracefully. |
94 | // - test more Flags. |
95 | // |
96 | // LoadSyntax & LoadAllSyntax modes: |
97 | // - Fset may be user-supplied or not. |
98 | // - Packages.Info is correctly set. |
99 | // - typechecker configuration is honored |
100 | // - import cycles are gracefully handled in type checker. |
101 | // - test typechecking of generated test main and cgo. |
102 | |
103 | // The zero-value of Config has LoadFiles mode. |
104 | func TestLoadZeroConfig(t *testing.T) { |
105 | testenv.NeedsGoPackages(t) |
106 | t.Parallel() |
107 | |
108 | initial, err := packages.Load(nil, "hash") |
109 | if err != nil { |
110 | t.Fatal(err) |
111 | } |
112 | if len(initial) != 1 { |
113 | t.Fatalf("got %s, want [hash]", initial) |
114 | } |
115 | hash := initial[0] |
116 | // Even though the hash package has imports, |
117 | // they are not reported. |
118 | got := fmt.Sprintf("srcs=%v imports=%v", srcs(hash), hash.Imports) |
119 | want := "srcs=[hash.go] imports=map[]" |
120 | if got != want { |
121 | t.Fatalf("got %s, want %s", got, want) |
122 | } |
123 | } |
124 | |
125 | func TestLoadImportsGraph(t *testing.T) { testAllOrModulesParallel(t, testLoadImportsGraph) } |
126 | func testLoadImportsGraph(t *testing.T, exporter packagestest.Exporter) { |
127 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
128 | Name: "golang.org/fake", |
129 | Files: map[string]interface{}{ |
130 | "a/a.go": `package a; const A = 1`, |
131 | "b/b.go": `package b; import ("golang.org/fake/a"; _ "container/list"); var B = a.A`, |
132 | "c/c.go": `package c; import (_ "golang.org/fake/b"; _ "unsafe")`, |
133 | "c/c2.go": "// +build ignore\n\n" + `package c; import _ "fmt"`, |
134 | "subdir/d/d.go": `package d`, |
135 | "subdir/d/d_test.go": `package d; import _ "math/bits"`, |
136 | "subdir/d/x_test.go": `package d_test; import _ "golang.org/fake/subdir/d"`, // TODO(adonovan): test bad import here |
137 | "subdir/e/d.go": `package e`, |
138 | "e/e.go": `package main; import _ "golang.org/fake/b"`, |
139 | "e/e2.go": `package main; import _ "golang.org/fake/c"`, |
140 | "f/f.go": `package f`, |
141 | }}}) |
142 | defer exported.Cleanup() |
143 | exported.Config.Mode = packages.LoadImports |
144 | initial, err := packages.Load(exported.Config, "golang.org/fake/c", "golang.org/fake/subdir/d", "golang.org/fake/e") |
145 | if err != nil { |
146 | t.Fatal(err) |
147 | } |
148 | |
149 | // Check graph topology. |
150 | graph, _ := importGraph(initial) |
151 | wantGraph := ` |
152 | container/list |
153 | golang.org/fake/a |
154 | golang.org/fake/b |
155 | * golang.org/fake/c |
156 | * golang.org/fake/e |
157 | * golang.org/fake/subdir/d |
158 | * golang.org/fake/subdir/d [golang.org/fake/subdir/d.test] |
159 | * golang.org/fake/subdir/d.test |
160 | * golang.org/fake/subdir/d_test [golang.org/fake/subdir/d.test] |
161 | math/bits |
162 | unsafe |
163 | golang.org/fake/b -> container/list |
164 | golang.org/fake/b -> golang.org/fake/a |
165 | golang.org/fake/c -> golang.org/fake/b |
166 | golang.org/fake/c -> unsafe |
167 | golang.org/fake/e -> golang.org/fake/b |
168 | golang.org/fake/e -> golang.org/fake/c |
169 | golang.org/fake/subdir/d [golang.org/fake/subdir/d.test] -> math/bits |
170 | golang.org/fake/subdir/d.test -> golang.org/fake/subdir/d [golang.org/fake/subdir/d.test] |
171 | golang.org/fake/subdir/d.test -> golang.org/fake/subdir/d_test [golang.org/fake/subdir/d.test] |
172 | golang.org/fake/subdir/d_test [golang.org/fake/subdir/d.test] -> golang.org/fake/subdir/d [golang.org/fake/subdir/d.test] |
173 | `[1:] |
174 | |
175 | if graph != wantGraph { |
176 | t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph) |
177 | } |
178 | |
179 | exported.Config.Tests = true |
180 | initial, err = packages.Load(exported.Config, "golang.org/fake/c", "golang.org/fake/subdir/d", "golang.org/fake/e") |
181 | if err != nil { |
182 | t.Fatal(err) |
183 | } |
184 | |
185 | // Check graph topology. |
186 | graph, all := importGraph(initial) |
187 | wantGraph = ` |
188 | container/list |
189 | golang.org/fake/a |
190 | golang.org/fake/b |
191 | * golang.org/fake/c |
192 | * golang.org/fake/e |
193 | * golang.org/fake/subdir/d |
194 | * golang.org/fake/subdir/d [golang.org/fake/subdir/d.test] |
195 | * golang.org/fake/subdir/d.test |
196 | * golang.org/fake/subdir/d_test [golang.org/fake/subdir/d.test] |
197 | math/bits |
198 | unsafe |
199 | golang.org/fake/b -> container/list |
200 | golang.org/fake/b -> golang.org/fake/a |
201 | golang.org/fake/c -> golang.org/fake/b |
202 | golang.org/fake/c -> unsafe |
203 | golang.org/fake/e -> golang.org/fake/b |
204 | golang.org/fake/e -> golang.org/fake/c |
205 | golang.org/fake/subdir/d [golang.org/fake/subdir/d.test] -> math/bits |
206 | golang.org/fake/subdir/d.test -> golang.org/fake/subdir/d [golang.org/fake/subdir/d.test] |
207 | golang.org/fake/subdir/d.test -> golang.org/fake/subdir/d_test [golang.org/fake/subdir/d.test] |
208 | golang.org/fake/subdir/d_test [golang.org/fake/subdir/d.test] -> golang.org/fake/subdir/d [golang.org/fake/subdir/d.test] |
209 | `[1:] |
210 | |
211 | if graph != wantGraph { |
212 | t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph) |
213 | } |
214 | |
215 | // Check node information: kind, name, srcs. |
216 | for _, test := range []struct { |
217 | id string |
218 | wantName string |
219 | wantKind string |
220 | wantSrcs string |
221 | wantIgnored string |
222 | }{ |
223 | {"golang.org/fake/a", "a", "package", "a.go", ""}, |
224 | {"golang.org/fake/b", "b", "package", "b.go", ""}, |
225 | {"golang.org/fake/c", "c", "package", "c.go", "c2.go"}, // c2.go is ignored |
226 | {"golang.org/fake/e", "main", "command", "e.go e2.go", ""}, |
227 | {"container/list", "list", "package", "list.go", ""}, |
228 | {"golang.org/fake/subdir/d", "d", "package", "d.go", ""}, |
229 | {"golang.org/fake/subdir/d.test", "main", "command", "0.go", ""}, |
230 | {"unsafe", "unsafe", "package", "", ""}, |
231 | } { |
232 | p, ok := all[test.id] |
233 | if !ok { |
234 | t.Errorf("no package %s", test.id) |
235 | continue |
236 | } |
237 | if p.Name != test.wantName { |
238 | t.Errorf("%s.Name = %q, want %q", test.id, p.Name, test.wantName) |
239 | } |
240 | |
241 | // kind |
242 | var kind string |
243 | if p.Name == "main" { |
244 | kind += "command" |
245 | } else { |
246 | kind += "package" |
247 | } |
248 | if kind != test.wantKind { |
249 | t.Errorf("%s.Kind = %q, want %q", test.id, kind, test.wantKind) |
250 | } |
251 | |
252 | if srcs := strings.Join(srcs(p), " "); srcs != test.wantSrcs { |
253 | t.Errorf("%s.Srcs = [%s], want [%s]", test.id, srcs, test.wantSrcs) |
254 | } |
255 | if ignored := strings.Join(cleanPaths(p.IgnoredFiles), " "); ignored != test.wantIgnored { |
256 | t.Errorf("%s.Srcs = [%s], want [%s]", test.id, ignored, test.wantIgnored) |
257 | } |
258 | } |
259 | |
260 | // Test an ad-hoc package, analogous to "go run hello.go". |
261 | if initial, err := packages.Load(exported.Config, exported.File("golang.org/fake", "c/c.go")); len(initial) == 0 { |
262 | t.Errorf("failed to obtain metadata for ad-hoc package: %s", err) |
263 | } else { |
264 | got := fmt.Sprintf("%s %s", initial[0].ID, srcs(initial[0])) |
265 | if want := "command-line-arguments [c.go]"; got != want { |
266 | t.Errorf("oops: got %s, want %s", got, want) |
267 | } |
268 | } |
269 | |
270 | // Wildcards |
271 | // See StdlibTest for effective test of "std" wildcard. |
272 | // TODO(adonovan): test "all" returns everything in the current module. |
273 | { |
274 | // "..." (subdirectory) |
275 | initial, err = packages.Load(exported.Config, "golang.org/fake/subdir/...") |
276 | if err != nil { |
277 | t.Fatal(err) |
278 | } |
279 | graph, _ = importGraph(initial) |
280 | wantGraph = ` |
281 | * golang.org/fake/subdir/d |
282 | * golang.org/fake/subdir/d [golang.org/fake/subdir/d.test] |
283 | * golang.org/fake/subdir/d.test |
284 | * golang.org/fake/subdir/d_test [golang.org/fake/subdir/d.test] |
285 | * golang.org/fake/subdir/e |
286 | math/bits |
287 | golang.org/fake/subdir/d [golang.org/fake/subdir/d.test] -> math/bits |
288 | golang.org/fake/subdir/d.test -> golang.org/fake/subdir/d [golang.org/fake/subdir/d.test] |
289 | golang.org/fake/subdir/d.test -> golang.org/fake/subdir/d_test [golang.org/fake/subdir/d.test] |
290 | golang.org/fake/subdir/d_test [golang.org/fake/subdir/d.test] -> golang.org/fake/subdir/d [golang.org/fake/subdir/d.test] |
291 | `[1:] |
292 | |
293 | if graph != wantGraph { |
294 | t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph) |
295 | } |
296 | } |
297 | } |
298 | |
299 | func TestLoadImportsTestVariants(t *testing.T) { |
300 | testAllOrModulesParallel(t, testLoadImportsTestVariants) |
301 | } |
302 | func testLoadImportsTestVariants(t *testing.T, exporter packagestest.Exporter) { |
303 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
304 | Name: "golang.org/fake", |
305 | Files: map[string]interface{}{ |
306 | "a/a.go": `package a; import _ "golang.org/fake/b"`, |
307 | "b/b.go": `package b`, |
308 | "b/b_test.go": `package b`, |
309 | "b/bx_test.go": `package b_test; import _ "golang.org/fake/a"`, |
310 | }}}) |
311 | defer exported.Cleanup() |
312 | exported.Config.Mode = packages.LoadImports |
313 | exported.Config.Tests = true |
314 | |
315 | initial, err := packages.Load(exported.Config, "golang.org/fake/a", "golang.org/fake/b") |
316 | if err != nil { |
317 | t.Fatal(err) |
318 | } |
319 | |
320 | // Check graph topology. |
321 | graph, _ := importGraph(initial) |
322 | wantGraph := ` |
323 | * golang.org/fake/a |
324 | golang.org/fake/a [golang.org/fake/b.test] |
325 | * golang.org/fake/b |
326 | * golang.org/fake/b [golang.org/fake/b.test] |
327 | * golang.org/fake/b.test |
328 | * golang.org/fake/b_test [golang.org/fake/b.test] |
329 | golang.org/fake/a -> golang.org/fake/b |
330 | golang.org/fake/a [golang.org/fake/b.test] -> golang.org/fake/b [golang.org/fake/b.test] |
331 | golang.org/fake/b.test -> golang.org/fake/b [golang.org/fake/b.test] |
332 | golang.org/fake/b.test -> golang.org/fake/b_test [golang.org/fake/b.test] |
333 | golang.org/fake/b_test [golang.org/fake/b.test] -> golang.org/fake/a [golang.org/fake/b.test] |
334 | `[1:] |
335 | |
336 | if graph != wantGraph { |
337 | t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph) |
338 | } |
339 | } |
340 | |
341 | func TestLoadAbsolutePath(t *testing.T) { |
342 | t.Parallel() |
343 | |
344 | exported := packagestest.Export(t, packagestest.GOPATH, []packagestest.Module{{ |
345 | Name: "golang.org/gopatha", |
346 | Files: map[string]interface{}{ |
347 | "a/a.go": `package a`, |
348 | }}, { |
349 | Name: "golang.org/gopathb", |
350 | Files: map[string]interface{}{ |
351 | "b/b.go": `package b`, |
352 | }}}) |
353 | defer exported.Cleanup() |
354 | |
355 | initial, err := packages.Load(exported.Config, filepath.Dir(exported.File("golang.org/gopatha", "a/a.go")), filepath.Dir(exported.File("golang.org/gopathb", "b/b.go"))) |
356 | if err != nil { |
357 | t.Fatalf("failed to load imports: %v", err) |
358 | } |
359 | |
360 | got := []string{} |
361 | for _, p := range initial { |
362 | got = append(got, p.ID) |
363 | } |
364 | sort.Strings(got) |
365 | want := []string{"golang.org/gopatha/a", "golang.org/gopathb/b"} |
366 | if !reflect.DeepEqual(got, want) { |
367 | t.Fatalf("initial packages loaded: got [%s], want [%s]", got, want) |
368 | } |
369 | } |
370 | |
371 | func TestVendorImports(t *testing.T) { |
372 | t.Parallel() |
373 | |
374 | exported := packagestest.Export(t, packagestest.GOPATH, []packagestest.Module{{ |
375 | Name: "golang.org/fake", |
376 | Files: map[string]interface{}{ |
377 | "a/a.go": `package a; import _ "b"; import _ "golang.org/fake/c";`, |
378 | "a/vendor/b/b.go": `package b; import _ "golang.org/fake/c"`, |
379 | "c/c.go": `package c; import _ "b"`, |
380 | "c/vendor/b/b.go": `package b`, |
381 | }}}) |
382 | defer exported.Cleanup() |
383 | exported.Config.Mode = packages.LoadImports |
384 | initial, err := packages.Load(exported.Config, "golang.org/fake/a", "golang.org/fake/c") |
385 | if err != nil { |
386 | t.Fatal(err) |
387 | } |
388 | |
389 | graph, all := importGraph(initial) |
390 | wantGraph := ` |
391 | * golang.org/fake/a |
392 | golang.org/fake/a/vendor/b |
393 | * golang.org/fake/c |
394 | golang.org/fake/c/vendor/b |
395 | golang.org/fake/a -> golang.org/fake/a/vendor/b |
396 | golang.org/fake/a -> golang.org/fake/c |
397 | golang.org/fake/a/vendor/b -> golang.org/fake/c |
398 | golang.org/fake/c -> golang.org/fake/c/vendor/b |
399 | `[1:] |
400 | if graph != wantGraph { |
401 | t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph) |
402 | } |
403 | |
404 | for _, test := range []struct { |
405 | pattern string |
406 | wantImports string |
407 | }{ |
408 | {"golang.org/fake/a", "b:golang.org/fake/a/vendor/b golang.org/fake/c:golang.org/fake/c"}, |
409 | {"golang.org/fake/c", "b:golang.org/fake/c/vendor/b"}, |
410 | {"golang.org/fake/a/vendor/b", "golang.org/fake/c:golang.org/fake/c"}, |
411 | {"golang.org/fake/c/vendor/b", ""}, |
412 | } { |
413 | // Test the import paths. |
414 | pkg := all[test.pattern] |
415 | if imports := strings.Join(imports(pkg), " "); imports != test.wantImports { |
416 | t.Errorf("package %q: got %s, want %s", test.pattern, imports, test.wantImports) |
417 | } |
418 | } |
419 | } |
420 | |
421 | func imports(p *packages.Package) []string { |
422 | if p == nil { |
423 | return nil |
424 | } |
425 | keys := make([]string, 0, len(p.Imports)) |
426 | for k, v := range p.Imports { |
427 | keys = append(keys, fmt.Sprintf("%s:%s", k, v.ID)) |
428 | } |
429 | sort.Strings(keys) |
430 | return keys |
431 | } |
432 | |
433 | func TestConfigDir(t *testing.T) { testAllOrModulesParallel(t, testConfigDir) } |
434 | func testConfigDir(t *testing.T, exporter packagestest.Exporter) { |
435 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
436 | Name: "golang.org/fake", |
437 | Files: map[string]interface{}{ |
438 | "a/a.go": `package a; const Name = "a" `, |
439 | "a/b/b.go": `package b; const Name = "a/b"`, |
440 | "b/b.go": `package b; const Name = "b"`, |
441 | }}}) |
442 | defer exported.Cleanup() |
443 | aDir := filepath.Dir(exported.File("golang.org/fake", "a/a.go")) |
444 | bDir := filepath.Dir(exported.File("golang.org/fake", "b/b.go")) |
445 | baseDir := filepath.Dir(aDir) |
446 | |
447 | for _, test := range []struct { |
448 | dir string |
449 | pattern string |
450 | want string // value of Name constant |
451 | fails bool |
452 | }{ |
453 | {dir: bDir, pattern: "golang.org/fake/a", want: `"a"`}, |
454 | {dir: bDir, pattern: "golang.org/fake/b", want: `"b"`}, |
455 | {dir: bDir, pattern: "./a", fails: true}, |
456 | {dir: bDir, pattern: "./b", fails: true}, |
457 | {dir: baseDir, pattern: "golang.org/fake/a", want: `"a"`}, |
458 | {dir: baseDir, pattern: "golang.org/fake/b", want: `"b"`}, |
459 | {dir: baseDir, pattern: "./a", want: `"a"`}, |
460 | {dir: baseDir, pattern: "./b", want: `"b"`}, |
461 | {dir: aDir, pattern: "golang.org/fake/a", want: `"a"`}, |
462 | {dir: aDir, pattern: "golang.org/fake/b", want: `"b"`}, |
463 | {dir: aDir, pattern: "./a", fails: true}, |
464 | {dir: aDir, pattern: "./b", want: `"a/b"`}, |
465 | } { |
466 | exported.Config.Mode = packages.LoadSyntax // Use LoadSyntax to ensure that files can be opened. |
467 | exported.Config.Dir = test.dir |
468 | initial, err := packages.Load(exported.Config, test.pattern) |
469 | var got string |
470 | fails := false |
471 | if err != nil { |
472 | fails = true |
473 | } else if len(initial) > 0 { |
474 | if len(initial[0].Errors) > 0 { |
475 | fails = true |
476 | } else if c := constant(initial[0], "Name"); c != nil { |
477 | got = c.Val().String() |
478 | } |
479 | } |
480 | if got != test.want { |
481 | t.Errorf("dir %q, pattern %q: got %s, want %s", |
482 | test.dir, test.pattern, got, test.want) |
483 | } |
484 | if fails != test.fails { |
485 | // TODO: remove when go#28023 is fixed |
486 | if test.fails && strings.HasPrefix(test.pattern, "./") && exporter == packagestest.Modules { |
487 | // Currently go list in module mode does not handle missing directories correctly. |
488 | continue |
489 | } |
490 | t.Errorf("dir %q, pattern %q: error %v, want %v", |
491 | test.dir, test.pattern, fails, test.fails) |
492 | } |
493 | } |
494 | } |
495 | |
496 | func TestConfigFlags(t *testing.T) { testAllOrModulesParallel(t, testConfigFlags) } |
497 | func testConfigFlags(t *testing.T, exporter packagestest.Exporter) { |
498 | // Test satisfying +build line tags, with -tags flag. |
499 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
500 | Name: "golang.org/fake", |
501 | Files: map[string]interface{}{ |
502 | // package a |
503 | "a/a.go": `package a; import _ "golang.org/fake/a/b"`, |
504 | "a/b.go": `// +build tag |
505 | |
506 | package a`, |
507 | "a/c.go": `// +build tag tag2 |
508 | |
509 | package a`, |
510 | "a/d.go": `// +build tag,tag2 |
511 | |
512 | package a`, |
513 | // package a/b |
514 | "a/b/a.go": `package b`, |
515 | "a/b/b.go": `// +build tag |
516 | |
517 | package b`, |
518 | }}}) |
519 | defer exported.Cleanup() |
520 | |
521 | for _, test := range []struct { |
522 | pattern string |
523 | tags []string |
524 | wantSrcs string |
525 | wantImportSrcs string |
526 | }{ |
527 | {`golang.org/fake/a`, []string{}, "a.go", "a.go"}, |
528 | {`golang.org/fake/a`, []string{`-tags=tag`}, "a.go b.go c.go", "a.go b.go"}, |
529 | {`golang.org/fake/a`, []string{`-tags=tag2`}, "a.go c.go", "a.go"}, |
530 | {`golang.org/fake/a`, []string{`-tags=tag tag2`}, "a.go b.go c.go d.go", "a.go b.go"}, |
531 | } { |
532 | exported.Config.Mode = packages.LoadImports |
533 | exported.Config.BuildFlags = test.tags |
534 | |
535 | initial, err := packages.Load(exported.Config, test.pattern) |
536 | if err != nil { |
537 | t.Error(err) |
538 | continue |
539 | } |
540 | if len(initial) != 1 { |
541 | t.Errorf("test tags %v: pattern %s, expected 1 package, got %d packages.", test.tags, test.pattern, len(initial)) |
542 | continue |
543 | } |
544 | pkg := initial[0] |
545 | if srcs := strings.Join(srcs(pkg), " "); srcs != test.wantSrcs { |
546 | t.Errorf("test tags %v: srcs of package %s = [%s], want [%s]", test.tags, test.pattern, srcs, test.wantSrcs) |
547 | } |
548 | for path, ipkg := range pkg.Imports { |
549 | if srcs := strings.Join(srcs(ipkg), " "); srcs != test.wantImportSrcs { |
550 | t.Errorf("build tags %v: srcs of imported package %s = [%s], want [%s]", test.tags, path, srcs, test.wantImportSrcs) |
551 | } |
552 | } |
553 | |
554 | } |
555 | } |
556 | |
557 | func TestLoadTypes(t *testing.T) { testAllOrModulesParallel(t, testLoadTypes) } |
558 | func testLoadTypes(t *testing.T, exporter packagestest.Exporter) { |
559 | // In LoadTypes and LoadSyntax modes, the compiler will |
560 | // fail to generate an export data file for c, because it has |
561 | // a type error. The loader should fall back loading a and c |
562 | // from source, but use the export data for b. |
563 | |
564 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
565 | Name: "golang.org/fake", |
566 | Files: map[string]interface{}{ |
567 | "a/a.go": `package a; import "golang.org/fake/b"; import "golang.org/fake/c"; const A = "a" + b.B + c.C`, |
568 | "b/b.go": `package b; const B = "b"`, |
569 | "c/c.go": `package c; const C = "c" + 1`, |
570 | }}}) |
571 | defer exported.Cleanup() |
572 | |
573 | exported.Config.Mode = packages.LoadTypes |
574 | initial, err := packages.Load(exported.Config, "golang.org/fake/a") |
575 | if err != nil { |
576 | t.Fatal(err) |
577 | } |
578 | |
579 | graph, all := importGraph(initial) |
580 | wantGraph := ` |
581 | * golang.org/fake/a |
582 | golang.org/fake/b |
583 | golang.org/fake/c |
584 | golang.org/fake/a -> golang.org/fake/b |
585 | golang.org/fake/a -> golang.org/fake/c |
586 | `[1:] |
587 | if graph != wantGraph { |
588 | t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph) |
589 | } |
590 | |
591 | for _, id := range []string{ |
592 | "golang.org/fake/a", |
593 | "golang.org/fake/b", |
594 | "golang.org/fake/c", |
595 | } { |
596 | p := all[id] |
597 | if p == nil { |
598 | t.Errorf("missing package: %s", id) |
599 | continue |
600 | } |
601 | if p.Types == nil { |
602 | t.Errorf("missing types.Package for %s", p) |
603 | continue |
604 | } else if !p.Types.Complete() { |
605 | t.Errorf("incomplete types.Package for %s", p) |
606 | } else if p.TypesSizes == nil { |
607 | t.Errorf("TypesSizes is not filled in for %s", p) |
608 | } |
609 | |
610 | } |
611 | } |
612 | |
613 | // TestLoadTypesBits is equivalent to TestLoadTypes except that it only requests |
614 | // the types using the NeedTypes bit. |
615 | func TestLoadTypesBits(t *testing.T) { testAllOrModulesParallel(t, testLoadTypesBits) } |
616 | func testLoadTypesBits(t *testing.T, exporter packagestest.Exporter) { |
617 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
618 | Name: "golang.org/fake", |
619 | Files: map[string]interface{}{ |
620 | "a/a.go": `package a; import "golang.org/fake/b"; const A = "a" + b.B`, |
621 | "b/b.go": `package b; import "golang.org/fake/c"; const B = "b" + c.C`, |
622 | "c/c.go": `package c; import "golang.org/fake/d"; const C = "c" + d.D`, |
623 | "d/d.go": `package d; import "golang.org/fake/e"; const D = "d" + e.E`, |
624 | "e/e.go": `package e; import "golang.org/fake/f"; const E = "e" + f.F`, |
625 | "f/f.go": `package f; const F = "f"`, |
626 | }}}) |
627 | defer exported.Cleanup() |
628 | |
629 | exported.Config.Mode = packages.NeedTypes | packages.NeedImports |
630 | initial, err := packages.Load(exported.Config, "golang.org/fake/a", "golang.org/fake/c") |
631 | if err != nil { |
632 | t.Fatal(err) |
633 | } |
634 | |
635 | graph, all := importGraph(initial) |
636 | wantGraph := ` |
637 | * golang.org/fake/a |
638 | golang.org/fake/b |
639 | * golang.org/fake/c |
640 | golang.org/fake/d |
641 | golang.org/fake/e |
642 | golang.org/fake/f |
643 | golang.org/fake/a -> golang.org/fake/b |
644 | golang.org/fake/b -> golang.org/fake/c |
645 | golang.org/fake/c -> golang.org/fake/d |
646 | golang.org/fake/d -> golang.org/fake/e |
647 | golang.org/fake/e -> golang.org/fake/f |
648 | `[1:] |
649 | if graph != wantGraph { |
650 | t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph) |
651 | } |
652 | |
653 | for _, test := range []struct { |
654 | id string |
655 | }{ |
656 | {"golang.org/fake/a"}, |
657 | {"golang.org/fake/b"}, |
658 | {"golang.org/fake/c"}, |
659 | {"golang.org/fake/d"}, |
660 | {"golang.org/fake/e"}, |
661 | {"golang.org/fake/f"}, |
662 | } { |
663 | p := all[test.id] |
664 | if p == nil { |
665 | t.Errorf("missing package: %s", test.id) |
666 | continue |
667 | } |
668 | if p.Types == nil { |
669 | t.Errorf("missing types.Package for %s", p) |
670 | continue |
671 | } |
672 | // We don't request the syntax, so we shouldn't get it. |
673 | if p.Syntax != nil { |
674 | t.Errorf("Syntax unexpectedly provided for %s", p) |
675 | } |
676 | if p.Errors != nil { |
677 | t.Errorf("errors in package: %s: %s", p, p.Errors) |
678 | } |
679 | } |
680 | |
681 | // Check value of constant. |
682 | aA := constant(all["golang.org/fake/a"], "A") |
683 | if aA == nil { |
684 | t.Fatalf("a.A: got nil") |
685 | } |
686 | if got, want := fmt.Sprintf("%v %v", aA, aA.Val()), `const golang.org/fake/a.A untyped string "abcdef"`; got != want { |
687 | t.Errorf("a.A: got %s, want %s", got, want) |
688 | } |
689 | } |
690 | |
691 | func TestLoadSyntaxOK(t *testing.T) { testAllOrModulesParallel(t, testLoadSyntaxOK) } |
692 | func testLoadSyntaxOK(t *testing.T, exporter packagestest.Exporter) { |
693 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
694 | Name: "golang.org/fake", |
695 | Files: map[string]interface{}{ |
696 | "a/a.go": `package a; import "golang.org/fake/b"; const A = "a" + b.B`, |
697 | "b/b.go": `package b; import "golang.org/fake/c"; const B = "b" + c.C`, |
698 | "c/c.go": `package c; import "golang.org/fake/d"; const C = "c" + d.D`, |
699 | "d/d.go": `package d; import "golang.org/fake/e"; const D = "d" + e.E`, |
700 | "e/e.go": `package e; import "golang.org/fake/f"; const E = "e" + f.F`, |
701 | "f/f.go": `package f; const F = "f"`, |
702 | }}}) |
703 | defer exported.Cleanup() |
704 | |
705 | exported.Config.Mode = packages.LoadSyntax |
706 | initial, err := packages.Load(exported.Config, "golang.org/fake/a", "golang.org/fake/c") |
707 | if err != nil { |
708 | t.Fatal(err) |
709 | } |
710 | |
711 | graph, all := importGraph(initial) |
712 | wantGraph := ` |
713 | * golang.org/fake/a |
714 | golang.org/fake/b |
715 | * golang.org/fake/c |
716 | golang.org/fake/d |
717 | golang.org/fake/e |
718 | golang.org/fake/f |
719 | golang.org/fake/a -> golang.org/fake/b |
720 | golang.org/fake/b -> golang.org/fake/c |
721 | golang.org/fake/c -> golang.org/fake/d |
722 | golang.org/fake/d -> golang.org/fake/e |
723 | golang.org/fake/e -> golang.org/fake/f |
724 | `[1:] |
725 | if graph != wantGraph { |
726 | t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph) |
727 | } |
728 | |
729 | for _, test := range []struct { |
730 | id string |
731 | wantSyntax bool |
732 | wantComplete bool |
733 | }{ |
734 | {"golang.org/fake/a", true, true}, // source package |
735 | {"golang.org/fake/b", true, true}, // source package because depends on initial package |
736 | {"golang.org/fake/c", true, true}, // source package |
737 | {"golang.org/fake/d", false, true}, // export data package |
738 | {"golang.org/fake/e", false, false}, // export data package |
739 | {"golang.org/fake/f", false, false}, // export data package |
740 | } { |
741 | // TODO(matloob): LoadSyntax and LoadAllSyntax are now equivalent, wantSyntax and wantComplete |
742 | // are true for all packages in the transitive dependency set. Add test cases on the individual |
743 | // Need* fields to check the equivalents on the new API. |
744 | p := all[test.id] |
745 | if p == nil { |
746 | t.Errorf("missing package: %s", test.id) |
747 | continue |
748 | } |
749 | if p.Types == nil { |
750 | t.Errorf("missing types.Package for %s", p) |
751 | continue |
752 | } else if p.Types.Complete() != test.wantComplete { |
753 | if test.wantComplete { |
754 | t.Errorf("incomplete types.Package for %s", p) |
755 | } else { |
756 | t.Errorf("unexpected complete types.Package for %s", p) |
757 | } |
758 | } |
759 | if (p.Syntax != nil) != test.wantSyntax { |
760 | if test.wantSyntax { |
761 | t.Errorf("missing ast.Files for %s", p) |
762 | } else { |
763 | t.Errorf("unexpected ast.Files for for %s", p) |
764 | } |
765 | } |
766 | if p.Errors != nil { |
767 | t.Errorf("errors in package: %s: %s", p, p.Errors) |
768 | } |
769 | } |
770 | |
771 | // Check value of constant. |
772 | aA := constant(all["golang.org/fake/a"], "A") |
773 | if aA == nil { |
774 | t.Fatalf("a.A: got nil") |
775 | } |
776 | if got, want := fmt.Sprintf("%v %v", aA, aA.Val()), `const golang.org/fake/a.A untyped string "abcdef"`; got != want { |
777 | t.Errorf("a.A: got %s, want %s", got, want) |
778 | } |
779 | } |
780 | |
781 | func TestLoadDiamondTypes(t *testing.T) { testAllOrModulesParallel(t, testLoadDiamondTypes) } |
782 | func testLoadDiamondTypes(t *testing.T, exporter packagestest.Exporter) { |
783 | // We make a diamond dependency and check the type d.D is the same through both paths |
784 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
785 | Name: "golang.org/fake", |
786 | Files: map[string]interface{}{ |
787 | "a/a.go": `package a; import ("golang.org/fake/b"; "golang.org/fake/c"); var _ = b.B == c.C`, |
788 | "b/b.go": `package b; import "golang.org/fake/d"; var B d.D`, |
789 | "c/c.go": `package c; import "golang.org/fake/d"; var C d.D`, |
790 | "d/d.go": `package d; type D int`, |
791 | }}}) |
792 | defer exported.Cleanup() |
793 | |
794 | exported.Config.Mode = packages.LoadSyntax |
795 | initial, err := packages.Load(exported.Config, "golang.org/fake/a") |
796 | if err != nil { |
797 | t.Fatal(err) |
798 | } |
799 | packages.Visit(initial, nil, func(pkg *packages.Package) { |
800 | for _, err := range pkg.Errors { |
801 | t.Errorf("package %s: %v", pkg.ID, err) |
802 | } |
803 | }) |
804 | |
805 | graph, _ := importGraph(initial) |
806 | wantGraph := ` |
807 | * golang.org/fake/a |
808 | golang.org/fake/b |
809 | golang.org/fake/c |
810 | golang.org/fake/d |
811 | golang.org/fake/a -> golang.org/fake/b |
812 | golang.org/fake/a -> golang.org/fake/c |
813 | golang.org/fake/b -> golang.org/fake/d |
814 | golang.org/fake/c -> golang.org/fake/d |
815 | `[1:] |
816 | if graph != wantGraph { |
817 | t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph) |
818 | } |
819 | } |
820 | |
821 | func TestLoadSyntaxError(t *testing.T) { testAllOrModulesParallel(t, testLoadSyntaxError) } |
822 | func testLoadSyntaxError(t *testing.T, exporter packagestest.Exporter) { |
823 | // A type error in a lower-level package (e) prevents go list |
824 | // from producing export data for all packages that depend on it |
825 | // [a-e]. Only f should be loaded from export data, and the rest |
826 | // should be IllTyped. |
827 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
828 | Name: "golang.org/fake", |
829 | Files: map[string]interface{}{ |
830 | "a/a.go": `package a; import "golang.org/fake/b"; const A = "a" + b.B`, |
831 | "b/b.go": `package b; import "golang.org/fake/c"; const B = "b" + c.C`, |
832 | "c/c.go": `package c; import "golang.org/fake/d"; const C = "c" + d.D`, |
833 | "d/d.go": `package d; import "golang.org/fake/e"; const D = "d" + e.E`, |
834 | "e/e.go": `package e; import "golang.org/fake/f"; const E = "e" + f.F + 1`, // type error |
835 | "f/f.go": `package f; const F = "f"`, |
836 | }}}) |
837 | defer exported.Cleanup() |
838 | |
839 | exported.Config.Mode = packages.LoadSyntax |
840 | initial, err := packages.Load(exported.Config, "golang.org/fake/a", "golang.org/fake/c") |
841 | if err != nil { |
842 | t.Fatal(err) |
843 | } |
844 | |
845 | all := make(map[string]*packages.Package) |
846 | packages.Visit(initial, nil, func(p *packages.Package) { |
847 | all[p.ID] = p |
848 | }) |
849 | |
850 | for _, test := range []struct { |
851 | id string |
852 | wantSyntax bool |
853 | wantIllTyped bool |
854 | }{ |
855 | {"golang.org/fake/a", true, true}, |
856 | {"golang.org/fake/b", true, true}, |
857 | {"golang.org/fake/c", true, true}, |
858 | {"golang.org/fake/d", true, true}, |
859 | {"golang.org/fake/e", true, true}, |
860 | {"golang.org/fake/f", false, false}, |
861 | } { |
862 | p := all[test.id] |
863 | if p == nil { |
864 | t.Errorf("missing package: %s", test.id) |
865 | continue |
866 | } |
867 | if p.Types == nil { |
868 | t.Errorf("missing types.Package for %s", p) |
869 | continue |
870 | } else if !p.Types.Complete() { |
871 | t.Errorf("incomplete types.Package for %s", p) |
872 | } |
873 | if (p.Syntax != nil) != test.wantSyntax { |
874 | if test.wantSyntax { |
875 | t.Errorf("missing ast.Files for %s", test.id) |
876 | } else { |
877 | t.Errorf("unexpected ast.Files for for %s", test.id) |
878 | } |
879 | } |
880 | if p.IllTyped != test.wantIllTyped { |
881 | t.Errorf("IllTyped was %t for %s", p.IllTyped, test.id) |
882 | } |
883 | } |
884 | |
885 | // Check value of constant. |
886 | aA := constant(all["golang.org/fake/a"], "A") |
887 | if aA == nil { |
888 | t.Fatalf("a.A: got nil") |
889 | } |
890 | if got, want := aA.String(), `const golang.org/fake/a.A invalid type`; got != want { |
891 | t.Errorf("a.A: got %s, want %s", got, want) |
892 | } |
893 | } |
894 | |
895 | // This function tests use of the ParseFile hook to modify |
896 | // the AST after parsing. |
897 | func TestParseFileModifyAST(t *testing.T) { testAllOrModulesParallel(t, testParseFileModifyAST) } |
898 | func testParseFileModifyAST(t *testing.T, exporter packagestest.Exporter) { |
899 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
900 | Name: "golang.org/fake", |
901 | Files: map[string]interface{}{ |
902 | "a/a.go": `package a; const A = "a" `, |
903 | }}}) |
904 | defer exported.Cleanup() |
905 | |
906 | exported.Config.Mode = packages.LoadAllSyntax |
907 | exported.Config.ParseFile = func(fset *token.FileSet, filename string, src []byte) (*ast.File, error) { |
908 | const mode = parser.AllErrors | parser.ParseComments |
909 | f, err := parser.ParseFile(fset, filename, src, mode) |
910 | // modify AST to change `const A = "a"` to `const A = "b"` |
911 | spec := f.Decls[0].(*ast.GenDecl).Specs[0].(*ast.ValueSpec) |
912 | spec.Values[0].(*ast.BasicLit).Value = `"b"` |
913 | return f, err |
914 | } |
915 | initial, err := packages.Load(exported.Config, "golang.org/fake/a") |
916 | if err != nil { |
917 | t.Error(err) |
918 | } |
919 | |
920 | // Check value of a.A has been set to "b" |
921 | a := initial[0] |
922 | got := constant(a, "A").Val().String() |
923 | if got != `"b"` { |
924 | t.Errorf("a.A: got %s, want %s", got, `"b"`) |
925 | } |
926 | } |
927 | |
928 | func TestAdHocPackagesBadImport(t *testing.T) { |
929 | t.Parallel() |
930 | |
931 | // This test doesn't use packagestest because we are testing ad-hoc packages, |
932 | // which are outside of $GOPATH and outside of a module. |
933 | tmp, err := ioutil.TempDir("", "a") |
934 | if err != nil { |
935 | t.Fatal(err) |
936 | } |
937 | defer os.RemoveAll(tmp) |
938 | |
939 | filename := filepath.Join(tmp, "a.go") |
940 | content := []byte(`package a |
941 | import _ "badimport" |
942 | const A = 1 |
943 | `) |
944 | if err := ioutil.WriteFile(filename, content, 0775); err != nil { |
945 | t.Fatal(err) |
946 | } |
947 | |
948 | // Make sure that the user's value of GO111MODULE does not affect test results. |
949 | for _, go111module := range []string{"off", "auto", "on"} { |
950 | config := &packages.Config{ |
951 | Env: append(os.Environ(), "GOPACKAGESDRIVER=off", fmt.Sprintf("GO111MODULE=%s", go111module)), |
952 | Dir: tmp, |
953 | Mode: packages.LoadAllSyntax, |
954 | Logf: t.Logf, |
955 | } |
956 | initial, err := packages.Load(config, fmt.Sprintf("file=%s", filename)) |
957 | if err != nil { |
958 | t.Error(err) |
959 | } |
960 | if len(initial) == 0 { |
961 | t.Fatalf("no packages for %s with GO111MODULE=%s", filename, go111module) |
962 | } |
963 | // Check value of a.A. |
964 | a := initial[0] |
965 | // There's an error because there's a bad import. |
966 | aA := constant(a, "A") |
967 | if aA == nil { |
968 | t.Errorf("a.A: got nil") |
969 | return |
970 | } |
971 | got := aA.Val().String() |
972 | if want := "1"; got != want { |
973 | t.Errorf("a.A: got %s, want %s", got, want) |
974 | } |
975 | } |
976 | } |
977 | |
978 | func TestLoadAllSyntaxImportErrors(t *testing.T) { |
979 | testAllOrModulesParallel(t, testLoadAllSyntaxImportErrors) |
980 | } |
981 | func testLoadAllSyntaxImportErrors(t *testing.T, exporter packagestest.Exporter) { |
982 | // TODO(matloob): Remove this once go list -e -compiled is fixed. |
983 | // See https://golang.org/issue/26755 |
984 | t.Skip("go list -compiled -e fails with non-zero exit status for empty packages") |
985 | |
986 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
987 | Name: "golang.org/fake", |
988 | Files: map[string]interface{}{ |
989 | "unicycle/unicycle.go": `package unicycle; import _ "unicycle"`, |
990 | "bicycle1/bicycle1.go": `package bicycle1; import _ "bicycle2"`, |
991 | "bicycle2/bicycle2.go": `package bicycle2; import _ "bicycle1"`, |
992 | "bad/bad.go": `not a package declaration`, |
993 | "empty/README.txt": `not a go file`, |
994 | "root/root.go": `package root |
995 | import ( |
996 | _ "bicycle1" |
997 | _ "unicycle" |
998 | _ "nonesuch" |
999 | _ "empty" |
1000 | _ "bad" |
1001 | )`, |
1002 | }}}) |
1003 | defer exported.Cleanup() |
1004 | |
1005 | exported.Config.Mode = packages.LoadAllSyntax |
1006 | initial, err := packages.Load(exported.Config, "root") |
1007 | if err != nil { |
1008 | t.Fatal(err) |
1009 | } |
1010 | |
1011 | // Cycle-forming edges are removed from the graph: |
1012 | // bicycle2 -> bicycle1 |
1013 | // unicycle -> unicycle |
1014 | graph, all := importGraph(initial) |
1015 | wantGraph := ` |
1016 | bicycle1 |
1017 | bicycle2 |
1018 | * root |
1019 | unicycle |
1020 | bicycle1 -> bicycle2 |
1021 | root -> bicycle1 |
1022 | root -> unicycle |
1023 | `[1:] |
1024 | if graph != wantGraph { |
1025 | t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph) |
1026 | } |
1027 | for _, test := range []struct { |
1028 | id string |
1029 | wantErrs []string |
1030 | }{ |
1031 | {"bicycle1", nil}, |
1032 | {"bicycle2", []string{ |
1033 | "could not import bicycle1 (import cycle: [root bicycle1 bicycle2])", |
1034 | }}, |
1035 | {"unicycle", []string{ |
1036 | "could not import unicycle (import cycle: [root unicycle])", |
1037 | }}, |
1038 | {"root", []string{ |
1039 | `could not import bad (missing package: "bad")`, |
1040 | `could not import empty (missing package: "empty")`, |
1041 | `could not import nonesuch (missing package: "nonesuch")`, |
1042 | }}, |
1043 | } { |
1044 | p := all[test.id] |
1045 | if p == nil { |
1046 | t.Errorf("missing package: %s", test.id) |
1047 | continue |
1048 | } |
1049 | if p.Types == nil { |
1050 | t.Errorf("missing types.Package for %s", test.id) |
1051 | } |
1052 | if p.Syntax == nil { |
1053 | t.Errorf("missing ast.Files for %s", test.id) |
1054 | } |
1055 | if !p.IllTyped { |
1056 | t.Errorf("IllTyped was false for %s", test.id) |
1057 | } |
1058 | if errs := errorMessages(p.Errors); !reflect.DeepEqual(errs, test.wantErrs) { |
1059 | t.Errorf("in package %s, got errors %s, want %s", p, errs, test.wantErrs) |
1060 | } |
1061 | } |
1062 | } |
1063 | |
1064 | func TestAbsoluteFilenames(t *testing.T) { testAllOrModulesParallel(t, testAbsoluteFilenames) } |
1065 | func testAbsoluteFilenames(t *testing.T, exporter packagestest.Exporter) { |
1066 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
1067 | Name: "golang.org/fake", |
1068 | Files: map[string]interface{}{ |
1069 | "a/a.go": `package a; const A = 1`, |
1070 | "b/b.go": `package b; import ("golang.org/fake/a"; _ "errors"); var B = a.A`, |
1071 | "b/vendor/a/a.go": `package a; const A = 1`, |
1072 | "c/c.go": `package c; import (_ "golang.org/fake/b"; _ "unsafe")`, |
1073 | "c/c2.go": "// +build ignore\n\n" + `package c; import _ "fmt"`, |
1074 | "subdir/d/d.go": `package d`, |
1075 | "subdir/e/d.go": `package e`, |
1076 | "e/e.go": `package main; import _ "golang.org/fake/b"`, |
1077 | "e/e2.go": `package main; import _ "golang.org/fake/c"`, |
1078 | "f/f.go": `package f`, |
1079 | "f/f.s": ``, |
1080 | "g/g.go": `package g; import _ "embed";` + "\n//go:embed g2.txt\n" + `var s string`, |
1081 | "g/g2.txt": "hello", |
1082 | "h/h.go": `package g; import _ "embed";` + "\n//go:embed a*.txt\n" + `var s string`, |
1083 | "h/aa.txt": "hello", |
1084 | }}}) |
1085 | defer exported.Cleanup() |
1086 | exported.Config.Dir = filepath.Dir(filepath.Dir(exported.File("golang.org/fake", "a/a.go"))) |
1087 | |
1088 | checkFile := func(filename string) { |
1089 | if !filepath.IsAbs(filename) { |
1090 | t.Errorf("filename is not absolute: %s", filename) |
1091 | } |
1092 | if _, err := os.Stat(filename); err != nil { |
1093 | t.Errorf("stat error, %s: %v", filename, err) |
1094 | } |
1095 | } |
1096 | |
1097 | for _, test := range []struct { |
1098 | pattern string |
1099 | want string |
1100 | }{ |
1101 | // Import paths |
1102 | {"golang.org/fake/a", "a.go"}, |
1103 | {"golang.org/fake/b/vendor/a", "a.go"}, |
1104 | {"golang.org/fake/b", "b.go"}, |
1105 | {"golang.org/fake/c", "c.go"}, |
1106 | {"golang.org/fake/subdir/d", "d.go"}, |
1107 | {"golang.org/fake/subdir/e", "d.go"}, |
1108 | {"golang.org/fake/e", "e.go e2.go"}, |
1109 | {"golang.org/fake/f", "f.go f.s"}, |
1110 | {"golang.org/fake/g", "g.go g2.txt"}, |
1111 | {"golang.org/fake/h", "h.go aa.txt"}, |
1112 | // Relative paths |
1113 | {"./a", "a.go"}, |
1114 | {"./b/vendor/a", "a.go"}, |
1115 | {"./b", "b.go"}, |
1116 | {"./c", "c.go"}, |
1117 | {"./subdir/d", "d.go"}, |
1118 | {"./subdir/e", "d.go"}, |
1119 | {"./e", "e.go e2.go"}, |
1120 | {"./f", "f.go f.s"}, |
1121 | {"./g", "g.go g2.txt"}, |
1122 | {"./h", "h.go aa.txt"}, |
1123 | } { |
1124 | exported.Config.Mode = packages.LoadFiles | packages.NeedEmbedFiles |
1125 | pkgs, err := packages.Load(exported.Config, test.pattern) |
1126 | if err != nil { |
1127 | t.Errorf("pattern %s: %v", test.pattern, err) |
1128 | continue |
1129 | } |
1130 | |
1131 | if got := strings.Join(srcs(pkgs[0]), " "); got != test.want { |
1132 | t.Errorf("in package %s, got %s, want %s", test.pattern, got, test.want) |
1133 | } |
1134 | |
1135 | // Test that files in all packages exist and are absolute paths. |
1136 | _, all := importGraph(pkgs) |
1137 | for _, pkg := range all { |
1138 | for _, filename := range pkg.GoFiles { |
1139 | checkFile(filename) |
1140 | } |
1141 | for _, filename := range pkg.OtherFiles { |
1142 | checkFile(filename) |
1143 | } |
1144 | for _, filename := range pkg.EmbedFiles { |
1145 | checkFile(filename) |
1146 | } |
1147 | for _, filename := range pkg.IgnoredFiles { |
1148 | checkFile(filename) |
1149 | } |
1150 | } |
1151 | } |
1152 | } |
1153 | |
1154 | func TestContains(t *testing.T) { testAllOrModulesParallel(t, testContains) } |
1155 | func testContains(t *testing.T, exporter packagestest.Exporter) { |
1156 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
1157 | Name: "golang.org/fake", |
1158 | Files: map[string]interface{}{ |
1159 | "a/a.go": `package a; import "golang.org/fake/b"`, |
1160 | "b/b.go": `package b; import "golang.org/fake/c"`, |
1161 | "c/c.go": `package c`, |
1162 | }}}) |
1163 | defer exported.Cleanup() |
1164 | bFile := exported.File("golang.org/fake", "b/b.go") |
1165 | exported.Config.Mode = packages.LoadImports |
1166 | initial, err := packages.Load(exported.Config, "file="+bFile) |
1167 | if err != nil { |
1168 | t.Fatal(err) |
1169 | } |
1170 | |
1171 | graph, _ := importGraph(initial) |
1172 | wantGraph := ` |
1173 | * golang.org/fake/b |
1174 | golang.org/fake/c |
1175 | golang.org/fake/b -> golang.org/fake/c |
1176 | `[1:] |
1177 | if graph != wantGraph { |
1178 | t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph) |
1179 | } |
1180 | } |
1181 | |
1182 | // This test ensures that the effective GOARCH variable in the |
1183 | // application determines the Sizes function used by the type checker. |
1184 | // This behavior is a stop-gap until we make the build system's query |
1185 | // tool report the correct sizes function for the actual configuration. |
1186 | func TestSizes(t *testing.T) { testAllOrModulesParallel(t, testSizes) } |
1187 | func testSizes(t *testing.T, exporter packagestest.Exporter) { |
1188 | // Only run this test on operating systems that have both an amd64 and 386 port. |
1189 | switch runtime.GOOS { |
1190 | case "linux", "windows", "freebsd", "openbsd", "netbsd", "android": |
1191 | default: |
1192 | t.Skipf("skipping test on %s", runtime.GOOS) |
1193 | } |
1194 | |
1195 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
1196 | Name: "golang.org/fake", |
1197 | Files: map[string]interface{}{ |
1198 | "a/a.go": `package a; import "unsafe"; const WordSize = 8*unsafe.Sizeof(int(0))`, |
1199 | }}}) |
1200 | defer exported.Cleanup() |
1201 | |
1202 | exported.Config.Mode = packages.LoadSyntax |
1203 | savedEnv := exported.Config.Env |
1204 | for arch, wantWordSize := range map[string]int64{"386": 32, "amd64": 64} { |
1205 | exported.Config.Env = append(savedEnv, "GOARCH="+arch) |
1206 | initial, err := packages.Load(exported.Config, "golang.org/fake/a") |
1207 | if err != nil { |
1208 | t.Fatal(err) |
1209 | } |
1210 | if packages.PrintErrors(initial) > 0 { |
1211 | t.Fatal("there were errors") |
1212 | } |
1213 | gotWordSize, _ := constantpkg.Int64Val(constant(initial[0], "WordSize").Val()) |
1214 | if gotWordSize != wantWordSize { |
1215 | t.Errorf("for GOARCH=%s, got word size %d, want %d", arch, gotWordSize, wantWordSize) |
1216 | } |
1217 | } |
1218 | } |
1219 | |
1220 | // TestContainsFallbackSticks ensures that when there are both contains and non-contains queries |
1221 | // the decision whether to fallback to the pre-1.11 go list sticks across both sets of calls to |
1222 | // go list. |
1223 | func TestContainsFallbackSticks(t *testing.T) { |
1224 | testAllOrModulesParallel(t, testContainsFallbackSticks) |
1225 | } |
1226 | func testContainsFallbackSticks(t *testing.T, exporter packagestest.Exporter) { |
1227 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
1228 | Name: "golang.org/fake", |
1229 | Files: map[string]interface{}{ |
1230 | "a/a.go": `package a; import "golang.org/fake/b"`, |
1231 | "b/b.go": `package b; import "golang.org/fake/c"`, |
1232 | "c/c.go": `package c`, |
1233 | }}}) |
1234 | defer exported.Cleanup() |
1235 | |
1236 | exported.Config.Mode = packages.LoadImports |
1237 | bFile := exported.File("golang.org/fake", "b/b.go") |
1238 | initial, err := packages.Load(exported.Config, "golang.org/fake/a", "file="+bFile) |
1239 | if err != nil { |
1240 | t.Fatal(err) |
1241 | } |
1242 | |
1243 | graph, _ := importGraph(initial) |
1244 | wantGraph := ` |
1245 | * golang.org/fake/a |
1246 | * golang.org/fake/b |
1247 | golang.org/fake/c |
1248 | golang.org/fake/a -> golang.org/fake/b |
1249 | golang.org/fake/b -> golang.org/fake/c |
1250 | `[1:] |
1251 | if graph != wantGraph { |
1252 | t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph) |
1253 | } |
1254 | } |
1255 | |
1256 | // Test that Load with no patterns is equivalent to loading "." via the golist |
1257 | // driver. |
1258 | func TestNoPatterns(t *testing.T) { testAllOrModulesParallel(t, testNoPatterns) } |
1259 | func testNoPatterns(t *testing.T, exporter packagestest.Exporter) { |
1260 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
1261 | Name: "golang.org/fake", |
1262 | Files: map[string]interface{}{ |
1263 | "a/a.go": `package a;`, |
1264 | "a/b/b.go": `package b;`, |
1265 | }}}) |
1266 | defer exported.Cleanup() |
1267 | |
1268 | aDir := filepath.Dir(exported.File("golang.org/fake", "a/a.go")) |
1269 | exported.Config.Dir = aDir |
1270 | |
1271 | initial, err := packages.Load(exported.Config) |
1272 | if err != nil { |
1273 | t.Fatal(err) |
1274 | } |
1275 | if len(initial) != 1 || initial[0].Name != "a" { |
1276 | t.Fatalf(`Load() = %v, wanted just the package in the current directory`, initial) |
1277 | } |
1278 | } |
1279 | |
1280 | func TestJSON(t *testing.T) { testAllOrModulesParallel(t, testJSON) } |
1281 | func testJSON(t *testing.T, exporter packagestest.Exporter) { |
1282 | //TODO: add in some errors |
1283 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
1284 | Name: "golang.org/fake", |
1285 | Files: map[string]interface{}{ |
1286 | "a/a.go": `package a; const A = 1`, |
1287 | "b/b.go": `package b; import "golang.org/fake/a"; var B = a.A`, |
1288 | "c/c.go": `package c; import "golang.org/fake/b" ; var C = b.B`, |
1289 | "d/d.go": `package d; import "golang.org/fake/b" ; var D = b.B`, |
1290 | }}}) |
1291 | defer exported.Cleanup() |
1292 | |
1293 | exported.Config.Mode = packages.LoadImports |
1294 | initial, err := packages.Load(exported.Config, "golang.org/fake/c", "golang.org/fake/d") |
1295 | if err != nil { |
1296 | t.Fatal(err) |
1297 | } |
1298 | |
1299 | // Visit and print all packages. |
1300 | buf := &bytes.Buffer{} |
1301 | enc := json.NewEncoder(buf) |
1302 | enc.SetIndent("", "\t") |
1303 | packages.Visit(initial, nil, func(pkg *packages.Package) { |
1304 | // trim the source lists for stable results |
1305 | pkg.GoFiles = cleanPaths(pkg.GoFiles) |
1306 | pkg.CompiledGoFiles = cleanPaths(pkg.CompiledGoFiles) |
1307 | pkg.OtherFiles = cleanPaths(pkg.OtherFiles) |
1308 | pkg.IgnoredFiles = cleanPaths(pkg.IgnoredFiles) |
1309 | if err := enc.Encode(pkg); err != nil { |
1310 | t.Fatal(err) |
1311 | } |
1312 | }) |
1313 | |
1314 | wantJSON := ` |
1315 | { |
1316 | "ID": "golang.org/fake/a", |
1317 | "Name": "a", |
1318 | "PkgPath": "golang.org/fake/a", |
1319 | "GoFiles": [ |
1320 | "a.go" |
1321 | ], |
1322 | "CompiledGoFiles": [ |
1323 | "a.go" |
1324 | ] |
1325 | } |
1326 | { |
1327 | "ID": "golang.org/fake/b", |
1328 | "Name": "b", |
1329 | "PkgPath": "golang.org/fake/b", |
1330 | "GoFiles": [ |
1331 | "b.go" |
1332 | ], |
1333 | "CompiledGoFiles": [ |
1334 | "b.go" |
1335 | ], |
1336 | "Imports": { |
1337 | "golang.org/fake/a": "golang.org/fake/a" |
1338 | } |
1339 | } |
1340 | { |
1341 | "ID": "golang.org/fake/c", |
1342 | "Name": "c", |
1343 | "PkgPath": "golang.org/fake/c", |
1344 | "GoFiles": [ |
1345 | "c.go" |
1346 | ], |
1347 | "CompiledGoFiles": [ |
1348 | "c.go" |
1349 | ], |
1350 | "Imports": { |
1351 | "golang.org/fake/b": "golang.org/fake/b" |
1352 | } |
1353 | } |
1354 | { |
1355 | "ID": "golang.org/fake/d", |
1356 | "Name": "d", |
1357 | "PkgPath": "golang.org/fake/d", |
1358 | "GoFiles": [ |
1359 | "d.go" |
1360 | ], |
1361 | "CompiledGoFiles": [ |
1362 | "d.go" |
1363 | ], |
1364 | "Imports": { |
1365 | "golang.org/fake/b": "golang.org/fake/b" |
1366 | } |
1367 | } |
1368 | `[1:] |
1369 | |
1370 | if buf.String() != wantJSON { |
1371 | t.Errorf("wrong JSON: got <<%s>>, want <<%s>>", buf.String(), wantJSON) |
1372 | } |
1373 | // now decode it again |
1374 | var decoded []*packages.Package |
1375 | dec := json.NewDecoder(buf) |
1376 | for dec.More() { |
1377 | p := new(packages.Package) |
1378 | if err := dec.Decode(p); err != nil { |
1379 | t.Fatal(err) |
1380 | } |
1381 | decoded = append(decoded, p) |
1382 | } |
1383 | if len(decoded) != 4 { |
1384 | t.Fatalf("got %d packages, want 4", len(decoded)) |
1385 | } |
1386 | for i, want := range []*packages.Package{{ |
1387 | ID: "golang.org/fake/a", |
1388 | Name: "a", |
1389 | }, { |
1390 | ID: "golang.org/fake/b", |
1391 | Name: "b", |
1392 | Imports: map[string]*packages.Package{ |
1393 | "golang.org/fake/a": {ID: "golang.org/fake/a"}, |
1394 | }, |
1395 | }, { |
1396 | ID: "golang.org/fake/c", |
1397 | Name: "c", |
1398 | Imports: map[string]*packages.Package{ |
1399 | "golang.org/fake/b": {ID: "golang.org/fake/b"}, |
1400 | }, |
1401 | }, { |
1402 | ID: "golang.org/fake/d", |
1403 | Name: "d", |
1404 | Imports: map[string]*packages.Package{ |
1405 | "golang.org/fake/b": {ID: "golang.org/fake/b"}, |
1406 | }, |
1407 | }} { |
1408 | got := decoded[i] |
1409 | if got.ID != want.ID { |
1410 | t.Errorf("Package %d has ID %q want %q", i, got.ID, want.ID) |
1411 | } |
1412 | if got.Name != want.Name { |
1413 | t.Errorf("Package %q has Name %q want %q", got.ID, got.Name, want.Name) |
1414 | } |
1415 | if len(got.Imports) != len(want.Imports) { |
1416 | t.Errorf("Package %q has %d imports want %d", got.ID, len(got.Imports), len(want.Imports)) |
1417 | continue |
1418 | } |
1419 | for path, ipkg := range got.Imports { |
1420 | if want.Imports[path] == nil { |
1421 | t.Errorf("Package %q has unexpected import %q", got.ID, path) |
1422 | continue |
1423 | } |
1424 | if want.Imports[path].ID != ipkg.ID { |
1425 | t.Errorf("Package %q import %q is %q want %q", got.ID, path, ipkg.ID, want.Imports[path].ID) |
1426 | } |
1427 | } |
1428 | } |
1429 | } |
1430 | |
1431 | func TestRejectInvalidQueries(t *testing.T) { |
1432 | t.Parallel() |
1433 | |
1434 | queries := []string{"key=", "key=value"} |
1435 | cfg := &packages.Config{ |
1436 | Mode: packages.LoadImports, |
1437 | Env: append(os.Environ(), "GO111MODULE=off", "GOPACKAGESDRIVER=off"), |
1438 | } |
1439 | for _, q := range queries { |
1440 | if _, err := packages.Load(cfg, q); err == nil { |
1441 | t.Errorf("packages.Load(%q) succeeded. Expected \"invalid query type\" error", q) |
1442 | } else if !strings.Contains(err.Error(), "invalid query type") { |
1443 | t.Errorf("packages.Load(%q): got error %v, want \"invalid query type\" error", q, err) |
1444 | } |
1445 | } |
1446 | } |
1447 | |
1448 | func TestPatternPassthrough(t *testing.T) { testAllOrModulesParallel(t, testPatternPassthrough) } |
1449 | func testPatternPassthrough(t *testing.T, exporter packagestest.Exporter) { |
1450 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
1451 | Name: "golang.org/fake", |
1452 | Files: map[string]interface{}{ |
1453 | "a/a.go": `package a;`, |
1454 | }}}) |
1455 | defer exported.Cleanup() |
1456 | |
1457 | initial, err := packages.Load(exported.Config, "pattern=a") |
1458 | if err != nil { |
1459 | t.Fatal(err) |
1460 | } |
1461 | |
1462 | graph, _ := importGraph(initial) |
1463 | wantGraph := ` |
1464 | * a |
1465 | `[1:] |
1466 | if graph != wantGraph { |
1467 | t.Errorf("wrong import graph: got <<%s>>, want <<%s>>", graph, wantGraph) |
1468 | } |
1469 | |
1470 | } |
1471 | |
1472 | func TestConfigDefaultEnv(t *testing.T) { |
1473 | // packagestest.TestAll instead of testAllOrModulesParallel because this test |
1474 | // can't be parallelized (it modifies the environment). |
1475 | packagestest.TestAll(t, testConfigDefaultEnv) |
1476 | } |
1477 | func testConfigDefaultEnv(t *testing.T, exporter packagestest.Exporter) { |
1478 | const driverJSON = `{ |
1479 | "Roots": ["gopackagesdriver"], |
1480 | "Packages": [{"ID": "gopackagesdriver", "Name": "gopackagesdriver"}] |
1481 | }` |
1482 | var ( |
1483 | pathKey string |
1484 | driverScript packagestest.Writer |
1485 | ) |
1486 | switch runtime.GOOS { |
1487 | case "android": |
1488 | t.Skip("doesn't run on android") |
1489 | case "windows": |
1490 | // TODO(jayconrod): write an equivalent batch script for windows. |
1491 | // Hint: "type" can be used to read a file to stdout. |
1492 | t.Skip("test requires sh") |
1493 | case "plan9": |
1494 | pathKey = "path" |
1495 | driverScript = packagestest.Script(`#!/bin/rc |
1496 | |
1497 | cat <<'EOF' |
1498 | ` + driverJSON + ` |
1499 | EOF |
1500 | `) |
1501 | default: |
1502 | pathKey = "PATH" |
1503 | driverScript = packagestest.Script(`#!/bin/sh |
1504 | |
1505 | cat - <<'EOF' |
1506 | ` + driverJSON + ` |
1507 | EOF |
1508 | `) |
1509 | } |
1510 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
1511 | Name: "golang.org/fake", |
1512 | Files: map[string]interface{}{ |
1513 | "bin/gopackagesdriver": driverScript, |
1514 | "golist/golist.go": "package golist", |
1515 | }}}) |
1516 | defer exported.Cleanup() |
1517 | driver := exported.File("golang.org/fake", "bin/gopackagesdriver") |
1518 | binDir := filepath.Dir(driver) |
1519 | if err := os.Chmod(driver, 0755); err != nil { |
1520 | t.Fatal(err) |
1521 | } |
1522 | |
1523 | path, ok := os.LookupEnv(pathKey) |
1524 | var pathWithDriver string |
1525 | if ok { |
1526 | pathWithDriver = binDir + string(os.PathListSeparator) + path |
1527 | } else { |
1528 | pathWithDriver = binDir |
1529 | } |
1530 | for _, test := range []struct { |
1531 | desc string |
1532 | path string |
1533 | driver string |
1534 | wantIDs string |
1535 | }{ |
1536 | { |
1537 | desc: "driver_off", |
1538 | path: pathWithDriver, |
1539 | driver: "off", |
1540 | wantIDs: "[golist]", |
1541 | }, { |
1542 | desc: "driver_unset", |
1543 | path: pathWithDriver, |
1544 | driver: "", |
1545 | wantIDs: "[gopackagesdriver]", |
1546 | }, { |
1547 | desc: "driver_set", |
1548 | path: "", |
1549 | driver: driver, |
1550 | wantIDs: "[gopackagesdriver]", |
1551 | }, |
1552 | } { |
1553 | t.Run(test.desc, func(t *testing.T) { |
1554 | oldPath := os.Getenv(pathKey) |
1555 | os.Setenv(pathKey, test.path) |
1556 | defer os.Setenv(pathKey, oldPath) |
1557 | // Clone exported.Config |
1558 | config := exported.Config |
1559 | config.Env = append([]string{}, exported.Config.Env...) |
1560 | config.Env = append(config.Env, "GOPACKAGESDRIVER="+test.driver) |
1561 | pkgs, err := packages.Load(exported.Config, "golist") |
1562 | if err != nil { |
1563 | t.Fatal(err) |
1564 | } |
1565 | |
1566 | gotIds := make([]string, len(pkgs)) |
1567 | for i, pkg := range pkgs { |
1568 | gotIds[i] = pkg.ID |
1569 | } |
1570 | if fmt.Sprint(pkgs) != test.wantIDs { |
1571 | t.Errorf("got %v; want %v", gotIds, test.wantIDs) |
1572 | } |
1573 | }) |
1574 | } |
1575 | } |
1576 | |
1577 | // This test that a simple x test package layout loads correctly. |
1578 | // There was a bug in go list where it returned multiple copies of the same |
1579 | // package (specifically in this case of golang.org/fake/a), and this triggered |
1580 | // a bug in go/packages where it would leave an empty entry in the root package |
1581 | // list. This would then cause a nil pointer crash. |
1582 | // This bug was triggered by the simple package layout below, and thus this |
1583 | // test will make sure the bug remains fixed. |
1584 | func TestBasicXTest(t *testing.T) { testAllOrModulesParallel(t, testBasicXTest) } |
1585 | func testBasicXTest(t *testing.T, exporter packagestest.Exporter) { |
1586 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
1587 | Name: "golang.org/fake", |
1588 | Files: map[string]interface{}{ |
1589 | "a/a.go": `package a;`, |
1590 | "a/a_test.go": `package a_test;`, |
1591 | }}}) |
1592 | defer exported.Cleanup() |
1593 | |
1594 | exported.Config.Mode = packages.LoadFiles |
1595 | exported.Config.Tests = true |
1596 | _, err := packages.Load(exported.Config, "golang.org/fake/a") |
1597 | if err != nil { |
1598 | t.Fatal(err) |
1599 | } |
1600 | } |
1601 | |
1602 | func TestErrorMissingFile(t *testing.T) { testAllOrModulesParallel(t, testErrorMissingFile) } |
1603 | func testErrorMissingFile(t *testing.T, exporter packagestest.Exporter) { |
1604 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
1605 | Name: "golang.org/fake", |
1606 | Files: map[string]interface{}{ |
1607 | "a/a_test.go": `package a;`, |
1608 | }}}) |
1609 | defer exported.Cleanup() |
1610 | |
1611 | exported.Config.Mode = packages.LoadSyntax |
1612 | exported.Config.Tests = false |
1613 | pkgs, err := packages.Load(exported.Config, "missing.go") |
1614 | if err != nil { |
1615 | t.Fatal(err) |
1616 | } |
1617 | if len(pkgs) == 0 && runtime.GOOS == "windows" { |
1618 | t.Skip("Issue #31344: the ad-hoc command-line-arguments package isn't created on windows") |
1619 | } |
1620 | if len(pkgs) != 1 || (pkgs[0].PkgPath != "command-line-arguments" && pkgs[0].PkgPath != "missing.go") { |
1621 | t.Fatalf("packages.Load: want [command-line-arguments] or [missing.go], got %v", pkgs) |
1622 | } |
1623 | if len(pkgs[0].Errors) == 0 { |
1624 | t.Errorf("result of Load: want package with errors, got none: %+v", pkgs[0]) |
1625 | } |
1626 | } |
1627 | |
1628 | func TestReturnErrorWhenUsingNonGoFiles(t *testing.T) { |
1629 | testAllOrModulesParallel(t, testReturnErrorWhenUsingNonGoFiles) |
1630 | } |
1631 | func testReturnErrorWhenUsingNonGoFiles(t *testing.T, exporter packagestest.Exporter) { |
1632 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
1633 | Name: "golang.org/gopatha", |
1634 | Files: map[string]interface{}{ |
1635 | "a/a.go": `package a`, |
1636 | }}, { |
1637 | Name: "golang.org/gopathb", |
1638 | Files: map[string]interface{}{ |
1639 | "b/b.c": `package b`, |
1640 | }}}) |
1641 | defer exported.Cleanup() |
1642 | config := packages.Config{Env: append(os.Environ(), "GOPACKAGESDRIVER=off")} |
1643 | pkgs, err := packages.Load(&config, "b/b.c") |
1644 | if err != nil { |
1645 | return |
1646 | } |
1647 | // Go <1.14 calls the package command-line-arguments while Go 1.14+ uses the file names. |
1648 | if len(pkgs) != 1 || (pkgs[0].PkgPath != "command-line-arguments" && pkgs[0].PkgPath != "b/b.c") { |
1649 | t.Fatalf("packages.Load: want [command-line-arguments] or [b/b.c], got %v", pkgs) |
1650 | } |
1651 | if len(pkgs[0].Errors) != 1 { |
1652 | t.Fatalf("result of Load: want package with one error, got: %+v", pkgs[0]) |
1653 | } |
1654 | } |
1655 | |
1656 | func TestReturnErrorWhenUsingGoFilesInMultipleDirectories(t *testing.T) { |
1657 | testAllOrModulesParallel(t, testReturnErrorWhenUsingGoFilesInMultipleDirectories) |
1658 | } |
1659 | func testReturnErrorWhenUsingGoFilesInMultipleDirectories(t *testing.T, exporter packagestest.Exporter) { |
1660 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
1661 | Name: "golang.org/gopatha", |
1662 | Files: map[string]interface{}{ |
1663 | "a/a.go": `package a`, |
1664 | "b/b.go": `package b`, |
1665 | }}}) |
1666 | defer exported.Cleanup() |
1667 | want := "named files must all be in one directory" |
1668 | pkgs, err := packages.Load(exported.Config, exported.File("golang.org/gopatha", "a/a.go"), exported.File("golang.org/gopatha", "b/b.go")) |
1669 | if err != nil { |
1670 | // Check if the error returned is the one we expected. |
1671 | if !strings.Contains(err.Error(), want) { |
1672 | t.Fatalf("want error message: %s, got: %s", want, err.Error()) |
1673 | } |
1674 | return |
1675 | } |
1676 | if len(pkgs) != 1 || pkgs[0].PkgPath != "command-line-arguments" { |
1677 | t.Fatalf("packages.Load: want [command-line-arguments], got %v", pkgs) |
1678 | } |
1679 | if len(pkgs[0].Errors) != 1 { |
1680 | t.Fatalf("result of Load: want package with one error, got: %+v", pkgs[0]) |
1681 | } |
1682 | got := pkgs[0].Errors[0].Error() |
1683 | if !strings.Contains(got, want) { |
1684 | t.Fatalf("want error message: %s, got: %s", want, got) |
1685 | } |
1686 | } |
1687 | |
1688 | func TestReturnErrorForUnexpectedDirectoryLayout(t *testing.T) { |
1689 | testAllOrModulesParallel(t, testReturnErrorForUnexpectedDirectoryLayout) |
1690 | } |
1691 | func testReturnErrorForUnexpectedDirectoryLayout(t *testing.T, exporter packagestest.Exporter) { |
1692 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
1693 | Name: "golang.org/gopatha", |
1694 | Files: map[string]interface{}{ |
1695 | "a/testdata/a.go": `package a; import _ "b"`, |
1696 | "a/vendor/b/b.go": `package b; import _ "fmt"`, |
1697 | }}}) |
1698 | defer exported.Cleanup() |
1699 | want := "unexpected directory layout" |
1700 | // triggering this error requires a relative package path |
1701 | exported.Config.Dir = filepath.Dir(exported.File("golang.org/gopatha", "a/testdata/a.go")) |
1702 | pkgs, err := packages.Load(exported.Config, ".") |
1703 | |
1704 | // This error doesn't seem to occur in module mode; so only |
1705 | // complain if we get zero packages while also getting no error. |
1706 | if err == nil { |
1707 | if len(pkgs) == 0 { |
1708 | // TODO(dh): we'll need to expand on the error check if/when Go stops emitting this error |
1709 | t.Fatalf("want error, got nil") |
1710 | } |
1711 | return |
1712 | } |
1713 | // Check if the error returned is the one we expected. |
1714 | if !strings.Contains(err.Error(), want) { |
1715 | t.Fatalf("want error message: %s, got: %s", want, err.Error()) |
1716 | } |
1717 | } |
1718 | |
1719 | func TestMissingDependency(t *testing.T) { testAllOrModulesParallel(t, testMissingDependency) } |
1720 | func testMissingDependency(t *testing.T, exporter packagestest.Exporter) { |
1721 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
1722 | Name: "golang.org/fake", |
1723 | Files: map[string]interface{}{ |
1724 | "a/a.go": `package a; import _ "this/package/doesnt/exist"`, |
1725 | }}}) |
1726 | defer exported.Cleanup() |
1727 | |
1728 | exported.Config.Mode = packages.LoadAllSyntax |
1729 | pkgs, err := packages.Load(exported.Config, "golang.org/fake/a") |
1730 | if err != nil { |
1731 | t.Fatal(err) |
1732 | } |
1733 | if len(pkgs) != 1 && pkgs[0].PkgPath != "golang.org/fake/a" { |
1734 | t.Fatalf("packages.Load: want [golang.org/fake/a], got %v", pkgs) |
1735 | } |
1736 | if len(pkgs[0].Errors) == 0 { |
1737 | t.Errorf("result of Load: want package with errors, got none: %+v", pkgs[0]) |
1738 | } |
1739 | } |
1740 | |
1741 | func TestAdHocContains(t *testing.T) { testAllOrModulesParallel(t, testAdHocContains) } |
1742 | func testAdHocContains(t *testing.T, exporter packagestest.Exporter) { |
1743 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
1744 | Name: "golang.org/fake", |
1745 | Files: map[string]interface{}{ |
1746 | "a/a.go": `package a;`, |
1747 | }}}) |
1748 | defer exported.Cleanup() |
1749 | |
1750 | tmpfile, err := ioutil.TempFile("", "adhoc*.go") |
1751 | filename := tmpfile.Name() |
1752 | if err != nil { |
1753 | t.Fatal(err) |
1754 | } |
1755 | fmt.Fprint(tmpfile, `package main; import "fmt"; func main() { fmt.Println("time for coffee") }`) |
1756 | if err := tmpfile.Close(); err != nil { |
1757 | t.Fatal(err) |
1758 | } |
1759 | |
1760 | defer func() { |
1761 | if err := os.Remove(filename); err != nil { |
1762 | t.Fatal(err) |
1763 | } |
1764 | }() |
1765 | |
1766 | exported.Config.Mode = packages.NeedImports | packages.NeedFiles |
1767 | pkgs, err := packages.Load(exported.Config, "file="+filename) |
1768 | if err != nil { |
1769 | t.Fatal(err) |
1770 | } |
1771 | if len(pkgs) != 1 && pkgs[0].PkgPath != "command-line-arguments" { |
1772 | t.Fatalf("packages.Load: want [command-line-arguments], got %v", pkgs) |
1773 | } |
1774 | pkg := pkgs[0] |
1775 | if _, ok := pkg.Imports["fmt"]; !ok || len(pkg.Imports) != 1 { |
1776 | t.Fatalf("Imports of loaded package: want [fmt], got %v", pkg.Imports) |
1777 | } |
1778 | if len(pkg.GoFiles) != 1 || pkg.GoFiles[0] != filename { |
1779 | t.Fatalf("GoFiles of loaded package: want [%s], got %v", filename, pkg.GoFiles) |
1780 | } |
1781 | } |
1782 | |
1783 | func TestCgoNoCcompiler(t *testing.T) { testAllOrModulesParallel(t, testCgoNoCcompiler) } |
1784 | func testCgoNoCcompiler(t *testing.T, exporter packagestest.Exporter) { |
1785 | testenv.NeedsTool(t, "cgo") |
1786 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
1787 | Name: "golang.org/fake", |
1788 | Files: map[string]interface{}{ |
1789 | "a/a.go": `package a |
1790 | import "net/http" |
1791 | const A = http.MethodGet |
1792 | `, |
1793 | }}}) |
1794 | defer exported.Cleanup() |
1795 | |
1796 | // Explicitly enable cgo but configure a nonexistent C compiler. |
1797 | exported.Config.Env = append(exported.Config.Env, "CGO_ENABLED=1", "CC=doesnotexist") |
1798 | exported.Config.Mode = packages.LoadAllSyntax |
1799 | initial, err := packages.Load(exported.Config, "golang.org/fake/a") |
1800 | |
1801 | if err != nil { |
1802 | t.Fatal(err) |
1803 | } |
1804 | |
1805 | // Check value of a.A. |
1806 | a := initial[0] |
1807 | aA := constant(a, "A") |
1808 | if aA == nil { |
1809 | t.Fatalf("a.A: got nil") |
1810 | } |
1811 | got := aA.Val().String() |
1812 | if got != "\"GET\"" { |
1813 | t.Errorf("a.A: got %s, want %s", got, "\"GET\"") |
1814 | } |
1815 | } |
1816 | |
1817 | func TestCgoMissingFile(t *testing.T) { testAllOrModulesParallel(t, testCgoMissingFile) } |
1818 | func testCgoMissingFile(t *testing.T, exporter packagestest.Exporter) { |
1819 | testenv.NeedsTool(t, "cgo") |
1820 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
1821 | Name: "golang.org/fake", |
1822 | Files: map[string]interface{}{ |
1823 | "a/a.go": `package a |
1824 | |
1825 | // #include "foo.h" |
1826 | import "C" |
1827 | |
1828 | const A = 4 |
1829 | `, |
1830 | }}}) |
1831 | defer exported.Cleanup() |
1832 | |
1833 | // Explicitly enable cgo. |
1834 | exported.Config.Env = append(exported.Config.Env, "CGO_ENABLED=1") |
1835 | exported.Config.Mode = packages.LoadAllSyntax |
1836 | initial, err := packages.Load(exported.Config, "golang.org/fake/a") |
1837 | |
1838 | if err != nil { |
1839 | t.Fatal(err) |
1840 | } |
1841 | |
1842 | // Check value of a.A. |
1843 | a := initial[0] |
1844 | aA := constant(a, "A") |
1845 | if aA == nil { |
1846 | t.Fatalf("a.A: got nil") |
1847 | } |
1848 | got := aA.Val().String() |
1849 | if got != "4" { |
1850 | t.Errorf("a.A: got %s, want %s", got, "4") |
1851 | } |
1852 | } |
1853 | |
1854 | func TestLoadImportsC(t *testing.T) { |
1855 | // This test checks that when a package depends on the |
1856 | // test variant of "syscall", "unsafe", or "runtime/cgo", that dependency |
1857 | // is not removed when those packages are added when it imports "C". |
1858 | // |
1859 | // For this test to work, the external test of syscall must have a dependency |
1860 | // on net, and net must import "syscall" and "C". |
1861 | if runtime.GOOS == "windows" { |
1862 | t.Skipf("skipping on windows; packages on windows do not satisfy conditions for test.") |
1863 | } |
1864 | if runtime.GOOS == "plan9" { |
1865 | // See https://golang.org/issue/27100. |
1866 | t.Skip(`skipping on plan9; for some reason "net [syscall.test]" is not loaded`) |
1867 | } |
1868 | t.Parallel() |
1869 | testenv.NeedsGoPackages(t) |
1870 | |
1871 | cfg := &packages.Config{ |
1872 | Context: testCtx, |
1873 | Mode: packages.LoadImports, |
1874 | Tests: true, |
1875 | } |
1876 | initial, err := packages.Load(cfg, "syscall", "net") |
1877 | if err != nil { |
1878 | t.Fatalf("failed to load imports: %v", err) |
1879 | } |
1880 | |
1881 | _, all := importGraph(initial) |
1882 | |
1883 | for _, test := range []struct { |
1884 | pattern string |
1885 | wantImport string // an import to check for |
1886 | }{ |
1887 | {"net", "syscall:syscall"}, |
1888 | {"net [syscall.test]", "syscall:syscall [syscall.test]"}, |
1889 | {"syscall_test [syscall.test]", "net:net [syscall.test]"}, |
1890 | } { |
1891 | // Test the import paths. |
1892 | pkg := all[test.pattern] |
1893 | if pkg == nil { |
1894 | t.Errorf("package %q not loaded", test.pattern) |
1895 | continue |
1896 | } |
1897 | if imports := strings.Join(imports(pkg), " "); !strings.Contains(imports, test.wantImport) { |
1898 | t.Errorf("package %q: got \n%s, \nwant to have %s", test.pattern, imports, test.wantImport) |
1899 | } |
1900 | } |
1901 | } |
1902 | |
1903 | func TestCgoNoSyntax(t *testing.T) { |
1904 | testAllOrModulesParallel(t, testCgoNoSyntax) |
1905 | } |
1906 | func testCgoNoSyntax(t *testing.T, exporter packagestest.Exporter) { |
1907 | testenv.NeedsTool(t, "cgo") |
1908 | |
1909 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
1910 | Name: "golang.org/fake", |
1911 | Files: map[string]interface{}{ |
1912 | "c/c.go": `package c; import "C"`, |
1913 | }, |
1914 | }}) |
1915 | |
1916 | // Explicitly enable cgo. |
1917 | exported.Config.Env = append(exported.Config.Env, "CGO_ENABLED=1") |
1918 | |
1919 | modes := []packages.LoadMode{ |
1920 | packages.NeedTypes, |
1921 | packages.NeedName | packages.NeedTypes, |
1922 | packages.NeedName | packages.NeedTypes | packages.NeedImports, |
1923 | packages.NeedName | packages.NeedTypes | packages.NeedImports | packages.NeedDeps, |
1924 | packages.NeedName | packages.NeedImports, |
1925 | } |
1926 | for _, mode := range modes { |
1927 | mode := mode |
1928 | t.Run(fmt.Sprint(mode), func(t *testing.T) { |
1929 | exported.Config.Mode = mode |
1930 | pkgs, err := packages.Load(exported.Config, "golang.org/fake/c") |
1931 | if err != nil { |
1932 | t.Fatal(err) |
1933 | } |
1934 | if len(pkgs) != 1 { |
1935 | t.Fatalf("Expected 1 package, got %v", pkgs) |
1936 | } |
1937 | pkg := pkgs[0] |
1938 | if len(pkg.Errors) != 0 { |
1939 | t.Fatalf("Expected no errors in package, got %v", pkg.Errors) |
1940 | } |
1941 | }) |
1942 | } |
1943 | } |
1944 | |
1945 | func TestCgoBadPkgConfig(t *testing.T) { |
1946 | testAllOrModulesParallel(t, testCgoBadPkgConfig) |
1947 | } |
1948 | func testCgoBadPkgConfig(t *testing.T, exporter packagestest.Exporter) { |
1949 | skipIfShort(t, "builds and links a fake pkgconfig binary") |
1950 | testenv.NeedsTool(t, "cgo") |
1951 | |
1952 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
1953 | Name: "golang.org/fake", |
1954 | Files: map[string]interface{}{ |
1955 | "c/c.go": `package c |
1956 | |
1957 | // #cgo pkg-config: --cflags -- foo |
1958 | import "C"`, |
1959 | }, |
1960 | }}) |
1961 | |
1962 | dir := buildFakePkgconfig(t, exported.Config.Env) |
1963 | defer os.RemoveAll(dir) |
1964 | env := exported.Config.Env |
1965 | for i, v := range env { |
1966 | if strings.HasPrefix(v, "PATH=") { |
1967 | env[i] = "PATH=" + dir + string(os.PathListSeparator) + v[len("PATH="):] |
1968 | } |
1969 | } |
1970 | |
1971 | exported.Config.Env = append(exported.Config.Env, "CGO_ENABLED=1") |
1972 | |
1973 | exported.Config.Mode = packages.NeedName | packages.NeedCompiledGoFiles |
1974 | pkgs, err := packages.Load(exported.Config, "golang.org/fake/c") |
1975 | if err != nil { |
1976 | t.Fatal(err) |
1977 | } |
1978 | if len(pkgs) != 1 { |
1979 | t.Fatalf("Expected 1 package, got %v", pkgs) |
1980 | } |
1981 | if pkgs[0].Name != "c" { |
1982 | t.Fatalf("Expected package to have name \"c\", got %q", pkgs[0].Name) |
1983 | } |
1984 | } |
1985 | |
1986 | func buildFakePkgconfig(t *testing.T, env []string) string { |
1987 | tmpdir, err := ioutil.TempDir("", "fakepkgconfig") |
1988 | if err != nil { |
1989 | t.Fatal(err) |
1990 | } |
1991 | err = ioutil.WriteFile(filepath.Join(tmpdir, "pkg-config.go"), []byte(` |
1992 | package main |
1993 | |
1994 | import "fmt" |
1995 | import "os" |
1996 | |
1997 | func main() { |
1998 | fmt.Fprintln(os.Stderr, "bad") |
1999 | os.Exit(2) |
2000 | } |
2001 | `), 0644) |
2002 | if err != nil { |
2003 | os.RemoveAll(tmpdir) |
2004 | t.Fatal(err) |
2005 | } |
2006 | cmd := exec.Command("go", "build", "-o", "pkg-config", "pkg-config.go") |
2007 | cmd.Dir = tmpdir |
2008 | cmd.Env = env |
2009 | |
2010 | if b, err := cmd.CombinedOutput(); err != nil { |
2011 | os.RemoveAll(tmpdir) |
2012 | fmt.Println(os.Environ()) |
2013 | t.Log(string(b)) |
2014 | t.Fatal(err) |
2015 | } |
2016 | return tmpdir |
2017 | } |
2018 | |
2019 | func TestIssue32814(t *testing.T) { testAllOrModulesParallel(t, testIssue32814) } |
2020 | func testIssue32814(t *testing.T, exporter packagestest.Exporter) { |
2021 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
2022 | Name: "golang.org/fake", |
2023 | Files: map[string]interface{}{}}}) |
2024 | defer exported.Cleanup() |
2025 | |
2026 | exported.Config.Mode = packages.NeedName | packages.NeedTypes | packages.NeedSyntax | packages.NeedTypesInfo | packages.NeedTypesSizes |
2027 | pkgs, err := packages.Load(exported.Config, "fmt") |
2028 | |
2029 | if err != nil { |
2030 | t.Fatal(err) |
2031 | } |
2032 | |
2033 | if len(pkgs) != 1 && pkgs[0].PkgPath != "fmt" { |
2034 | t.Fatalf("packages.Load: want [fmt], got %v", pkgs) |
2035 | } |
2036 | pkg := pkgs[0] |
2037 | if len(pkg.Errors) != 0 { |
2038 | t.Fatalf("Errors for fmt pkg: got %v, want none", pkg.Errors) |
2039 | } |
2040 | if !pkg.Types.Complete() { |
2041 | t.Fatalf("Types.Complete() for fmt pkg: got %v, want true", pkgs[0].Types.Complete()) |
2042 | |
2043 | } |
2044 | } |
2045 | |
2046 | func TestLoadTypesInfoWithoutNeedDeps(t *testing.T) { |
2047 | testAllOrModulesParallel(t, testLoadTypesInfoWithoutNeedDeps) |
2048 | } |
2049 | func testLoadTypesInfoWithoutNeedDeps(t *testing.T, exporter packagestest.Exporter) { |
2050 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
2051 | Name: "golang.org/fake", |
2052 | Files: map[string]interface{}{ |
2053 | "a/a.go": `package a; import _ "golang.org/fake/b"`, |
2054 | "b/b.go": `package b`, |
2055 | }}}) |
2056 | defer exported.Cleanup() |
2057 | |
2058 | exported.Config.Mode = packages.NeedTypes | packages.NeedTypesInfo | packages.NeedImports |
2059 | pkgs, err := packages.Load(exported.Config, "golang.org/fake/a") |
2060 | if err != nil { |
2061 | t.Fatal(err) |
2062 | } |
2063 | pkg := pkgs[0] |
2064 | if pkg.IllTyped { |
2065 | t.Fatal("Loaded package is ill typed") |
2066 | } |
2067 | const expectedImport = "golang.org/fake/b" |
2068 | if _, ok := pkg.Imports[expectedImport]; !ok || len(pkg.Imports) != 1 { |
2069 | t.Fatalf("Imports of loaded package: want [%s], got %v", expectedImport, pkg.Imports) |
2070 | } |
2071 | } |
2072 | |
2073 | func TestLoadWithNeedDeps(t *testing.T) { |
2074 | testAllOrModulesParallel(t, testLoadWithNeedDeps) |
2075 | } |
2076 | func testLoadWithNeedDeps(t *testing.T, exporter packagestest.Exporter) { |
2077 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
2078 | Name: "golang.org/fake", |
2079 | Files: map[string]interface{}{ |
2080 | "a/a.go": `package a; import _ "golang.org/fake/b"`, |
2081 | "b/b.go": `package b; import _ "golang.org/fake/c"`, |
2082 | "c/c.go": `package c`, |
2083 | }}}) |
2084 | defer exported.Cleanup() |
2085 | |
2086 | exported.Config.Mode = packages.NeedTypes | packages.NeedTypesInfo | packages.NeedImports | packages.NeedDeps |
2087 | pkgs, err := packages.Load(exported.Config, "golang.org/fake/a") |
2088 | if err != nil { |
2089 | t.Fatal(err) |
2090 | } |
2091 | if len(pkgs) != 1 { |
2092 | t.Fatalf("Expected 1 package, got %d", len(pkgs)) |
2093 | } |
2094 | |
2095 | pkgA := pkgs[0] |
2096 | if pkgA.IllTyped { |
2097 | t.Fatal("Loaded package is ill typed") |
2098 | } |
2099 | |
2100 | pkgB := pkgA.Imports["golang.org/fake/b"] |
2101 | if pkgB == nil || len(pkgA.Imports) != 1 { |
2102 | t.Fatalf("Imports of loaded package 'a' are invalid: %v", pkgA.Imports) |
2103 | } |
2104 | if pkgB.Types == nil || !pkgB.Types.Complete() || pkgB.TypesInfo == nil { |
2105 | t.Fatalf("Types of package 'b' are nil or incomplete: %v, %v", pkgB.Types, pkgB.TypesInfo) |
2106 | } |
2107 | |
2108 | pkgC := pkgB.Imports["golang.org/fake/c"] |
2109 | if pkgC == nil || len(pkgB.Imports) != 1 { |
2110 | t.Fatalf("Imports of loaded package 'c' are invalid: %v", pkgB.Imports) |
2111 | } |
2112 | if pkgC.Types == nil || !pkgC.Types.Complete() || pkgC.TypesInfo == nil { |
2113 | t.Fatalf("Types of package 'b' are nil or incomplete: %v, %v", pkgC.Types, pkgC.TypesInfo) |
2114 | } |
2115 | } |
2116 | |
2117 | func TestImpliedLoadMode(t *testing.T) { |
2118 | testAllOrModulesParallel(t, testImpliedLoadMode) |
2119 | } |
2120 | func testImpliedLoadMode(t *testing.T, exporter packagestest.Exporter) { |
2121 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
2122 | Name: "golang.org/fake", |
2123 | Files: map[string]interface{}{ |
2124 | "a/a.go": `package a; import _ "golang.org/fake/b"`, |
2125 | "b/b.go": `package b`, |
2126 | }}}) |
2127 | defer exported.Cleanup() |
2128 | |
2129 | exported.Config.Mode = packages.NeedTypes | packages.NeedTypesInfo |
2130 | pkgs, err := packages.Load(exported.Config, "golang.org/fake/a") |
2131 | if err != nil { |
2132 | t.Fatal(err) |
2133 | } |
2134 | if len(pkgs) != 1 { |
2135 | t.Fatalf("Expected 1 package, got %d", len(pkgs)) |
2136 | } |
2137 | |
2138 | pkg := pkgs[0] |
2139 | if pkg.IllTyped { |
2140 | t.Fatalf("Loaded package is ill typed: %v", pkg.Errors) |
2141 | } |
2142 | |
2143 | // Check that packages.NeedTypesInfo worked well. |
2144 | if !pkg.Types.Complete() { |
2145 | t.Fatalf("Loaded package types are incomplete") |
2146 | } |
2147 | |
2148 | // Check that implied packages.NeedImports by packages.NeedTypesInfo |
2149 | // didn't add Imports. |
2150 | if len(pkg.Imports) != 0 { |
2151 | t.Fatalf("Package imports weren't requested but were returned: %v", pkg.Imports) |
2152 | } |
2153 | } |
2154 | |
2155 | func TestIssue35331(t *testing.T) { |
2156 | testAllOrModulesParallel(t, testIssue35331) |
2157 | } |
2158 | func testIssue35331(t *testing.T, exporter packagestest.Exporter) { |
2159 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
2160 | Name: "golang.org/fake", |
2161 | }}) |
2162 | defer exported.Cleanup() |
2163 | |
2164 | exported.Config.Mode = packages.NeedName | packages.NeedFiles | packages.NeedCompiledGoFiles | |
2165 | packages.NeedImports | packages.NeedDeps | packages.NeedSyntax |
2166 | exported.Config.Tests = false |
2167 | pkgs, err := packages.Load(exported.Config, "strconv") |
2168 | if err != nil { |
2169 | t.Fatal(err) |
2170 | } |
2171 | if len(pkgs) != 1 { |
2172 | t.Fatalf("Expected 1 package, got %v", pkgs) |
2173 | } |
2174 | packages.Visit(pkgs, func(pkg *packages.Package) bool { |
2175 | if len(pkg.Errors) > 0 { |
2176 | t.Errorf("Expected no errors in package %q, got %v", pkg.ID, pkg.Errors) |
2177 | } |
2178 | if len(pkg.Syntax) == 0 && pkg.ID != "unsafe" { |
2179 | t.Errorf("Expected syntax on package %q, got none.", pkg.ID) |
2180 | } |
2181 | return true |
2182 | }, nil) |
2183 | } |
2184 | |
2185 | func TestMultiplePackageVersionsIssue36188(t *testing.T) { |
2186 | testAllOrModulesParallel(t, testMultiplePackageVersionsIssue36188) |
2187 | } |
2188 | |
2189 | func testMultiplePackageVersionsIssue36188(t *testing.T, exporter packagestest.Exporter) { |
2190 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
2191 | Name: "golang.org/fake", |
2192 | Files: map[string]interface{}{ |
2193 | "a/a.go": `package a; import _ "golang.org/fake/b"`, |
2194 | "b/b.go": `package main`, |
2195 | }}}) |
2196 | pkgs, err := packages.Load(exported.Config, "golang.org/fake/a", "golang.org/fake/b") |
2197 | if err != nil { |
2198 | t.Fatal(err) |
2199 | } |
2200 | sort.Slice(pkgs, func(i, j int) bool { return pkgs[i].ID < pkgs[j].ID }) |
2201 | if len(pkgs) != 2 { |
2202 | t.Fatalf("expected two packages, got %v", pkgs) |
2203 | } |
2204 | if pkgs[0].ID != "golang.org/fake/a" && pkgs[1].ID != "golang.org/fake/b" { |
2205 | t.Fatalf(`expected (sorted) IDs "golang.org/fake/a" and "golang.org/fake/b", got %q and %q`, |
2206 | pkgs[0].ID, pkgs[1].ID) |
2207 | } |
2208 | if pkgs[0].Errors == nil { |
2209 | t.Errorf(`expected error on package "golang.org/fake/a", got none`) |
2210 | } |
2211 | if pkgs[1].Errors != nil { |
2212 | t.Errorf(`expected no errors on package "golang.org/fake/b", got %v`, pkgs[1].Errors) |
2213 | } |
2214 | defer exported.Cleanup() |
2215 | } |
2216 | |
2217 | func TestLoadModeStrings(t *testing.T) { |
2218 | testcases := []struct { |
2219 | mode packages.LoadMode |
2220 | expected string |
2221 | }{ |
2222 | { |
2223 | packages.LoadMode(0), |
2224 | "LoadMode(0)", |
2225 | }, |
2226 | { |
2227 | packages.NeedName, |
2228 | "LoadMode(NeedName)", |
2229 | }, |
2230 | { |
2231 | packages.NeedFiles, |
2232 | "LoadMode(NeedFiles)", |
2233 | }, |
2234 | { |
2235 | packages.NeedCompiledGoFiles, |
2236 | "LoadMode(NeedCompiledGoFiles)", |
2237 | }, |
2238 | { |
2239 | packages.NeedImports, |
2240 | "LoadMode(NeedImports)", |
2241 | }, |
2242 | { |
2243 | packages.NeedDeps, |
2244 | "LoadMode(NeedDeps)", |
2245 | }, |
2246 | { |
2247 | packages.NeedExportFile, |
2248 | "LoadMode(NeedExportFile)", |
2249 | }, |
2250 | { |
2251 | packages.NeedTypes, |
2252 | "LoadMode(NeedTypes)", |
2253 | }, |
2254 | { |
2255 | packages.NeedSyntax, |
2256 | "LoadMode(NeedSyntax)", |
2257 | }, |
2258 | { |
2259 | packages.NeedTypesInfo, |
2260 | "LoadMode(NeedTypesInfo)", |
2261 | }, |
2262 | { |
2263 | packages.NeedTypesSizes, |
2264 | "LoadMode(NeedTypesSizes)", |
2265 | }, |
2266 | { |
2267 | packages.NeedName | packages.NeedExportFile, |
2268 | "LoadMode(NeedName|NeedExportFile)", |
2269 | }, |
2270 | { |
2271 | packages.NeedName | packages.NeedFiles | packages.NeedCompiledGoFiles | packages.NeedImports | packages.NeedDeps | packages.NeedExportFile | packages.NeedTypes | packages.NeedSyntax | packages.NeedTypesInfo | packages.NeedTypesSizes, |
2272 | "LoadMode(NeedName|NeedFiles|NeedCompiledGoFiles|NeedImports|NeedDeps|NeedExportFile|NeedTypes|NeedSyntax|NeedTypesInfo|NeedTypesSizes)", |
2273 | }, |
2274 | { |
2275 | packages.NeedName | 8192, |
2276 | "LoadMode(NeedName|Unknown)", |
2277 | }, |
2278 | { |
2279 | 4096, |
2280 | "LoadMode(Unknown)", |
2281 | }, |
2282 | } |
2283 | |
2284 | for tcInd, tc := range testcases { |
2285 | t.Run(fmt.Sprintf("test-%d", tcInd), func(t *testing.T) { |
2286 | actual := tc.mode.String() |
2287 | if tc.expected != actual { |
2288 | t.Errorf("want %#v, got %#v", tc.expected, actual) |
2289 | } |
2290 | }) |
2291 | } |
2292 | } |
2293 | |
2294 | func TestCycleImportStack(t *testing.T) { |
2295 | testAllOrModulesParallel(t, testCycleImportStack) |
2296 | } |
2297 | func testCycleImportStack(t *testing.T, exporter packagestest.Exporter) { |
2298 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
2299 | Name: "golang.org/fake", |
2300 | Files: map[string]interface{}{ |
2301 | "a/a.go": `package a; import _ "golang.org/fake/b"`, |
2302 | "b/b.go": `package b; import _ "golang.org/fake/a"`, |
2303 | }}}) |
2304 | defer exported.Cleanup() |
2305 | |
2306 | exported.Config.Mode = packages.NeedName | packages.NeedImports |
2307 | pkgs, err := packages.Load(exported.Config, "golang.org/fake/a") |
2308 | if err != nil { |
2309 | t.Fatal(err) |
2310 | } |
2311 | if len(pkgs) != 1 { |
2312 | t.Fatalf("Expected 1 package, got %v", pkgs) |
2313 | } |
2314 | pkg := pkgs[0] |
2315 | if len(pkg.Errors) != 1 { |
2316 | t.Fatalf("Expected one error in package, got %v", pkg.Errors) |
2317 | } |
2318 | expected := "import cycle not allowed: import stack: [golang.org/fake/a golang.org/fake/b golang.org/fake/a]" |
2319 | if pkg.Errors[0].Msg != expected { |
2320 | t.Fatalf("Expected error %q, got %q", expected, pkg.Errors[0].Msg) |
2321 | } |
2322 | } |
2323 | |
2324 | func TestForTestField(t *testing.T) { |
2325 | testAllOrModulesParallel(t, testForTestField) |
2326 | } |
2327 | func testForTestField(t *testing.T, exporter packagestest.Exporter) { |
2328 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
2329 | Name: "golang.org/fake", |
2330 | Files: map[string]interface{}{ |
2331 | "a/a.go": `package a; func hello() {};`, |
2332 | "a/a_test.go": `package a; import "testing"; func TestA1(t *testing.T) {};`, |
2333 | "a/x_test.go": `package a_test; import "testing"; func TestA2(t *testing.T) {};`, |
2334 | }}}) |
2335 | defer exported.Cleanup() |
2336 | |
2337 | // Add overlays to make sure they don't affect anything. |
2338 | exported.Config.Overlay = map[string][]byte{ |
2339 | "a/a_test.go": []byte(`package a; import "testing"; func TestA1(t *testing.T) { hello(); };`), |
2340 | "a/x_test.go": []byte(`package a_test; import "testing"; func TestA2(t *testing.T) { hello(); };`), |
2341 | } |
2342 | exported.Config.Tests = true |
2343 | exported.Config.Mode = packages.NeedName | packages.NeedImports |
2344 | forTest := "golang.org/fake/a" |
2345 | pkgs, err := packages.Load(exported.Config, forTest) |
2346 | if err != nil { |
2347 | t.Fatal(err) |
2348 | } |
2349 | if len(pkgs) != 4 { |
2350 | t.Errorf("expected 4 packages, got %v", len(pkgs)) |
2351 | } |
2352 | for _, pkg := range pkgs { |
2353 | var hasTestFile bool |
2354 | for _, f := range pkg.CompiledGoFiles { |
2355 | if strings.Contains(f, "a_test.go") || strings.Contains(f, "x_test.go") { |
2356 | hasTestFile = true |
2357 | break |
2358 | } |
2359 | } |
2360 | if !hasTestFile { |
2361 | continue |
2362 | } |
2363 | got := packagesinternal.GetForTest(pkg) |
2364 | if got != forTest { |
2365 | t.Errorf("expected %q, got %q", forTest, got) |
2366 | } |
2367 | } |
2368 | } |
2369 | |
2370 | func TestIssue37529(t *testing.T) { |
2371 | testAllOrModulesParallel(t, testIssue37529) |
2372 | } |
2373 | func testIssue37529(t *testing.T, exporter packagestest.Exporter) { |
2374 | // Tests #37529. When automatic vendoring is triggered, and we try to determine |
2375 | // the module root dir for a new overlay package, we previously would do a go list -m all, |
2376 | // which is incompatible with automatic vendoring. |
2377 | |
2378 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
2379 | Name: "golang.org/fake", |
2380 | Files: map[string]interface{}{ |
2381 | "c/c2.go": `package c`, |
2382 | "a/a.go": `package a; import "b.com/b"; const A = b.B`, |
2383 | "vendor/b.com/b/b.go": `package b; const B = 4`, |
2384 | }}}) |
2385 | rootDir := filepath.Dir(filepath.Dir(exported.File("golang.org/fake", "a/a.go"))) |
2386 | exported.Config.Overlay = map[string][]byte{ |
2387 | filepath.Join(rootDir, "c/c.go"): []byte(`package c; import "golang.org/fake/a"; const C = a.A`), |
2388 | } |
2389 | exported.Config.Env = append(exported.Config.Env, "GOFLAGS=-mod=vendor") |
2390 | exported.Config.Mode = packages.LoadAllSyntax |
2391 | |
2392 | defer exported.Cleanup() |
2393 | |
2394 | initial, err := packages.Load(exported.Config, "golang.org/fake/c") |
2395 | if err != nil { |
2396 | t.Fatal(err) |
2397 | } |
2398 | |
2399 | // Check value of a.A. |
2400 | a := initial[0] |
2401 | aA := constant(a, "C") |
2402 | if aA == nil { |
2403 | t.Fatalf("a.A: got nil") |
2404 | } |
2405 | got := aA.Val().String() |
2406 | if got != "4" { |
2407 | t.Errorf("a.A: got %s, want %s", got, "4") |
2408 | } |
2409 | } |
2410 | |
2411 | func TestIssue37098(t *testing.T) { testAllOrModulesParallel(t, testIssue37098) } |
2412 | func testIssue37098(t *testing.T, exporter packagestest.Exporter) { |
2413 | // packages.Load should only return Go sources in |
2414 | // (*Package).CompiledGoFiles. This tests #37098, where using SWIG to |
2415 | // causes C++ sources to be inadvertently included in |
2416 | // (*Package).CompiledGoFiles. |
2417 | |
2418 | // This is fixed in Go 1.17, but not earlier. |
2419 | testenv.NeedsGo1Point(t, 17) |
2420 | |
2421 | if _, err := exec.LookPath("swig"); err != nil { |
2422 | t.Skip("skipping test: swig not available") |
2423 | } |
2424 | if _, err := exec.LookPath("g++"); err != nil { |
2425 | t.Skip("skipping test: g++ not available") |
2426 | } |
2427 | |
2428 | // Create a fake package with an empty Go source, and a SWIG interface |
2429 | // file. |
2430 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
2431 | Name: "golang.org/fake", |
2432 | Files: map[string]interface{}{ |
2433 | // The "package" statement must be included for SWIG sources to |
2434 | // be generated. |
2435 | "a/a.go": "package a", |
2436 | "a/a.swigcxx": "", |
2437 | }}}) |
2438 | defer exported.Cleanup() |
2439 | |
2440 | initial, err := packages.Load(exported.Config, "golang.org/fake/a") |
2441 | if err != nil { |
2442 | t.Fatalf("failed to load the package: %v", err) |
2443 | } |
2444 | // Try and parse each of the files |
2445 | for _, pkg := range initial { |
2446 | for _, file := range pkg.CompiledGoFiles { |
2447 | |
2448 | // Validate that each file can be parsed as a Go source. |
2449 | fset := token.NewFileSet() |
2450 | _, err := parser.ParseFile(fset, file, nil, parser.ImportsOnly) |
2451 | if err != nil { |
2452 | t.Errorf("Failed to parse file '%s' as a Go source: %v", file, err) |
2453 | |
2454 | contents, err := ioutil.ReadFile(file) |
2455 | if err != nil { |
2456 | t.Fatalf("Failed to read the un-parsable file '%s': %v", file, err) |
2457 | } |
2458 | |
2459 | // Print out some of the un-parsable file to aid in debugging. |
2460 | n := len(contents) |
2461 | |
2462 | // Don't print the whole file if it is too large. |
2463 | const maxBytes = 1000 |
2464 | if n > maxBytes { |
2465 | n = maxBytes |
2466 | } |
2467 | |
2468 | t.Logf("First %d bytes of un-parsable file: %s", n, contents[:n]) |
2469 | } |
2470 | } |
2471 | } |
2472 | } |
2473 | |
2474 | // TestIssue56632 checks that CompiledGoFiles does not contain non-go files regardless of |
2475 | // whether the NeedFiles mode bit is set. |
2476 | func TestIssue56632(t *testing.T) { |
2477 | t.Parallel() |
2478 | testenv.NeedsGoBuild(t) |
2479 | testenv.NeedsTool(t, "cgo") |
2480 | |
2481 | exported := packagestest.Export(t, packagestest.GOPATH, []packagestest.Module{{ |
2482 | Name: "golang.org/issue56632", |
2483 | Files: map[string]interface{}{ |
2484 | "a/a.go": `package a`, |
2485 | "a/a_cgo.go": `package a |
2486 | |
2487 | import "C"`, |
2488 | "a/a.s": ``, |
2489 | "a/a.c": ``, |
2490 | }}}) |
2491 | defer exported.Cleanup() |
2492 | |
2493 | modes := []packages.LoadMode{packages.NeedCompiledGoFiles, packages.NeedCompiledGoFiles | packages.NeedFiles, packages.NeedImports | packages.NeedCompiledGoFiles, packages.NeedImports | packages.NeedFiles | packages.NeedCompiledGoFiles} |
2494 | for _, mode := range modes { |
2495 | exported.Config.Mode = mode |
2496 | |
2497 | initial, err := packages.Load(exported.Config, "golang.org/issue56632/a") |
2498 | if err != nil { |
2499 | t.Fatalf("failed to load package: %v", err) |
2500 | } |
2501 | |
2502 | if len(initial) != 1 { |
2503 | t.Errorf("expected 3 packages, got %d", len(initial)) |
2504 | } |
2505 | |
2506 | p := initial[0] |
2507 | |
2508 | if len(p.Errors) != 0 { |
2509 | t.Errorf("expected no errors, got %v", p.Errors) |
2510 | } |
2511 | |
2512 | for _, f := range p.CompiledGoFiles { |
2513 | if strings.HasSuffix(f, ".s") || strings.HasSuffix(f, ".c") { |
2514 | t.Errorf("expected no non-Go CompiledGoFiles, got file %q in CompiledGoFiles", f) |
2515 | } |
2516 | } |
2517 | } |
2518 | } |
2519 | |
2520 | // TestInvalidFilesInXTest checks the fix for golang/go#37971 in Go 1.15. |
2521 | func TestInvalidFilesInXTest(t *testing.T) { testAllOrModulesParallel(t, testInvalidFilesInXTest) } |
2522 | func testInvalidFilesInXTest(t *testing.T, exporter packagestest.Exporter) { |
2523 | exported := packagestest.Export(t, exporter, []packagestest.Module{ |
2524 | { |
2525 | Name: "golang.org/fake", |
2526 | Files: map[string]interface{}{ |
2527 | "d/d.go": `package d; import "net/http"; const d = http.MethodGet; func Get() string { return d; }`, |
2528 | "d/d2.go": ``, // invalid file |
2529 | "d/d_test.go": `package d_test; import "testing"; import "golang.org/fake/d"; func TestD(t *testing.T) { d.Get(); }`, |
2530 | }, |
2531 | }, |
2532 | }) |
2533 | defer exported.Cleanup() |
2534 | |
2535 | exported.Config.Mode = packages.NeedName | packages.NeedFiles |
2536 | exported.Config.Tests = true |
2537 | |
2538 | initial, err := packages.Load(exported.Config, "golang.org/fake/d") |
2539 | if err != nil { |
2540 | t.Fatal(err) |
2541 | } |
2542 | if len(initial) != 3 { |
2543 | t.Errorf("expected 3 packages, got %d", len(initial)) |
2544 | } |
2545 | } |
2546 | |
2547 | func TestTypecheckCgo(t *testing.T) { testAllOrModulesParallel(t, testTypecheckCgo) } |
2548 | func testTypecheckCgo(t *testing.T, exporter packagestest.Exporter) { |
2549 | testenv.NeedsTool(t, "cgo") |
2550 | |
2551 | const cgo = `package cgo |
2552 | import "C" |
2553 | |
2554 | func Example() { |
2555 | C.CString("hi") |
2556 | } |
2557 | ` |
2558 | exported := packagestest.Export(t, exporter, []packagestest.Module{ |
2559 | { |
2560 | Name: "golang.org/fake", |
2561 | Files: map[string]interface{}{ |
2562 | "cgo/cgo.go": cgo, |
2563 | }, |
2564 | }, |
2565 | }) |
2566 | defer exported.Cleanup() |
2567 | |
2568 | exported.Config.Mode = packages.NeedFiles | packages.NeedCompiledGoFiles | |
2569 | packages.NeedSyntax | packages.NeedDeps | packages.NeedTypes | |
2570 | packages.LoadMode(packagesinternal.TypecheckCgo) |
2571 | |
2572 | initial, err := packages.Load(exported.Config, "golang.org/fake/cgo") |
2573 | if err != nil { |
2574 | t.Fatal(err) |
2575 | } |
2576 | pkg := initial[0] |
2577 | if len(pkg.Errors) != 0 { |
2578 | t.Fatalf("package has errors: %v", pkg.Errors) |
2579 | } |
2580 | |
2581 | expos := pkg.Types.Scope().Lookup("Example").Pos() |
2582 | fname := pkg.Fset.File(expos).Name() |
2583 | if !strings.HasSuffix(fname, "cgo.go") { |
2584 | t.Errorf("position for cgo package was loaded from %v, wanted cgo.go", fname) |
2585 | } |
2586 | } |
2587 | |
2588 | func TestModule(t *testing.T) { |
2589 | testAllOrModulesParallel(t, testModule) |
2590 | } |
2591 | func testModule(t *testing.T, exporter packagestest.Exporter) { |
2592 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
2593 | Name: "golang.org/fake", |
2594 | Files: map[string]interface{}{"a/a.go": `package a`}}}) |
2595 | exported.Config.Mode = packages.NeedModule |
2596 | rootDir := filepath.Dir(filepath.Dir(exported.File("golang.org/fake", "a/a.go"))) |
2597 | |
2598 | initial, err := packages.Load(exported.Config, "golang.org/fake/a") |
2599 | if err != nil { |
2600 | t.Fatal(err) |
2601 | } |
2602 | |
2603 | if len(initial) != 1 { |
2604 | t.Fatal("want exactly one package, got ", initial) |
2605 | } |
2606 | a := initial[0] |
2607 | switch exported.Exporter.Name() { |
2608 | case "GOPATH": |
2609 | if a.Module != nil { |
2610 | t.Fatal("package.Module: want nil, got ", a.Module) |
2611 | } |
2612 | case "Modules": |
2613 | // Make sure Modules field is set, and spot check a few of its fields. |
2614 | if a.Module == nil { |
2615 | t.Fatal("package.Module: want non-nil, got nil") |
2616 | } |
2617 | if a.Module.Path != "golang.org/fake" { |
2618 | t.Fatalf("package.Modile.Path: want \"golang.org/fake\", got %q", a.Module.Path) |
2619 | } |
2620 | if a.Module.GoMod != filepath.Join(rootDir, "go.mod") { |
2621 | t.Fatalf("package.Module.GoMod: want %q, got %q", filepath.Join(rootDir, "go.mod"), a.Module.GoMod) |
2622 | } |
2623 | default: |
2624 | t.Fatalf("Expected exporter to be GOPATH or Modules, got %v", exported.Exporter.Name()) |
2625 | } |
2626 | } |
2627 | |
2628 | func TestExternal_NotHandled(t *testing.T) { |
2629 | testAllOrModulesParallel(t, testExternal_NotHandled) |
2630 | } |
2631 | func testExternal_NotHandled(t *testing.T, exporter packagestest.Exporter) { |
2632 | skipIfShort(t, "builds and links fake driver binaries") |
2633 | testenv.NeedsGoBuild(t) |
2634 | |
2635 | tempdir, err := ioutil.TempDir("", "testexternal") |
2636 | if err != nil { |
2637 | t.Fatal(err) |
2638 | } |
2639 | defer os.RemoveAll(tempdir) |
2640 | |
2641 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
2642 | Name: "golang.org/fake", |
2643 | Files: map[string]interface{}{ |
2644 | "a/a.go": `package a`, |
2645 | "empty_driver/main.go": `package main |
2646 | |
2647 | import ( |
2648 | "fmt" |
2649 | "io/ioutil" |
2650 | "os" |
2651 | ) |
2652 | |
2653 | func main() { |
2654 | ioutil.ReadAll(os.Stdin) |
2655 | fmt.Println("{}") |
2656 | } |
2657 | `, |
2658 | "nothandled_driver/main.go": `package main |
2659 | |
2660 | import ( |
2661 | "fmt" |
2662 | "io/ioutil" |
2663 | "os" |
2664 | ) |
2665 | |
2666 | func main() { |
2667 | ioutil.ReadAll(os.Stdin) |
2668 | fmt.Println("{\"NotHandled\": true}") |
2669 | } |
2670 | `, |
2671 | }}}) |
2672 | baseEnv := exported.Config.Env |
2673 | |
2674 | // As a control, create a fake driver that always returns an empty response. |
2675 | emptyDriverPath := filepath.Join(tempdir, "empty_driver.exe") // Add .exe because Windows expects it. |
2676 | cmd := exec.Command("go", "build", "-o", emptyDriverPath, "golang.org/fake/empty_driver") |
2677 | cmd.Env = baseEnv |
2678 | cmd.Dir = exported.Config.Dir |
2679 | if b, err := cmd.CombinedOutput(); err != nil { |
2680 | t.Log(string(b)) |
2681 | t.Fatal(err) |
2682 | } |
2683 | |
2684 | exported.Config.Env = append(append([]string{}, baseEnv...), "GOPACKAGESDRIVER="+emptyDriverPath) |
2685 | initial, err := packages.Load(exported.Config, "golang.org/fake/a") |
2686 | if err != nil { |
2687 | t.Fatal(err) |
2688 | } |
2689 | |
2690 | if len(initial) != 0 { |
2691 | t.Errorf("package.Load with empty driver: want [], got %v", initial) |
2692 | } |
2693 | |
2694 | // Create a fake driver that always returns a NotHandled response. |
2695 | notHandledDriverPath := filepath.Join(tempdir, "nothandled_driver.exe") |
2696 | cmd = exec.Command("go", "build", "-o", notHandledDriverPath, "golang.org/fake/nothandled_driver") |
2697 | cmd.Env = baseEnv |
2698 | cmd.Dir = exported.Config.Dir |
2699 | if b, err := cmd.CombinedOutput(); err != nil { |
2700 | t.Log(string(b)) |
2701 | t.Fatal(err) |
2702 | } |
2703 | |
2704 | exported.Config.Env = append(append([]string{}, baseEnv...), "GOPACKAGESDRIVER="+notHandledDriverPath) |
2705 | initial, err = packages.Load(exported.Config, "golang.org/fake/a") |
2706 | if err != nil { |
2707 | t.Fatal(err) |
2708 | } |
2709 | |
2710 | if len(initial) != 1 || initial[0].PkgPath != "golang.org/fake/a" { |
2711 | t.Errorf("package.Load: want [golang.org/fake/a], got %v", initial) |
2712 | } |
2713 | } |
2714 | |
2715 | func TestInvalidPackageName(t *testing.T) { |
2716 | testAllOrModulesParallel(t, testInvalidPackageName) |
2717 | } |
2718 | |
2719 | func testInvalidPackageName(t *testing.T, exporter packagestest.Exporter) { |
2720 | exported := packagestest.Export(t, exporter, []packagestest.Module{{ |
2721 | Name: "golang.org/fake", |
2722 | Files: map[string]interface{}{ |
2723 | "main.go": `package default |
2724 | |
2725 | func main() { |
2726 | } |
2727 | `, |
2728 | }, |
2729 | }}) |
2730 | defer exported.Cleanup() |
2731 | |
2732 | initial, err := packages.Load(exported.Config, "golang.org/fake") |
2733 | if err != nil { |
2734 | t.Fatal(err) |
2735 | } |
2736 | pkg := initial[0] |
2737 | if len(pkg.CompiledGoFiles) != 1 { |
2738 | t.Fatalf("expected 1 Go file in package %s, got %v", pkg.ID, len(pkg.CompiledGoFiles)) |
2739 | } |
2740 | } |
2741 | |
2742 | func TestEmptyEnvironment(t *testing.T) { |
2743 | t.Parallel() |
2744 | |
2745 | cfg := &packages.Config{ |
2746 | Env: []string{"FOO=BAR"}, |
2747 | } |
2748 | _, err := packages.Load(cfg, "fmt") |
2749 | if err == nil { |
2750 | t.Fatal("Load with explicitly empty environment should fail") |
2751 | } |
2752 | } |
2753 | |
2754 | func TestPackageLoadSingleFile(t *testing.T) { |
2755 | tmp, err := ioutil.TempDir("", "a") |
2756 | if err != nil { |
2757 | t.Fatal(err) |
2758 | } |
2759 | defer os.RemoveAll(tmp) |
2760 | |
2761 | filename := filepath.Join(tmp, "a.go") |
2762 | |
2763 | if err := ioutil.WriteFile(filename, []byte(`package main; func main() { println("hello world") }`), 0775); err != nil { |
2764 | t.Fatal(err) |
2765 | } |
2766 | |
2767 | pkgs, err := packages.Load(&packages.Config{Mode: packages.LoadSyntax, Dir: tmp}, "file="+filename) |
2768 | if err != nil { |
2769 | t.Fatalf("could not load package: %v", err) |
2770 | } |
2771 | if len(pkgs) != 1 { |
2772 | t.Fatalf("expected one package to be loaded, got %d", len(pkgs)) |
2773 | } |
2774 | if len(pkgs[0].CompiledGoFiles) != 1 || pkgs[0].CompiledGoFiles[0] != filename { |
2775 | t.Fatalf("expected one compiled go file (%q), got %v", filename, pkgs[0].CompiledGoFiles) |
2776 | } |
2777 | } |
2778 | |
2779 | func errorMessages(errors []packages.Error) []string { |
2780 | var msgs []string |
2781 | for _, err := range errors { |
2782 | msgs = append(msgs, err.Msg) |
2783 | } |
2784 | return msgs |
2785 | } |
2786 | |
2787 | func srcs(p *packages.Package) []string { |
2788 | return cleanPaths(append(append(p.GoFiles[:len(p.GoFiles):len(p.GoFiles)], p.OtherFiles...), p.EmbedFiles...)) |
2789 | } |
2790 | |
2791 | // cleanPaths attempts to reduce path names to stable forms |
2792 | func cleanPaths(paths []string) []string { |
2793 | result := make([]string, len(paths)) |
2794 | for i, src := range paths { |
2795 | // If the source file doesn't have an extension like .go or .s, |
2796 | // it comes from GOCACHE. The names there aren't predictable. |
2797 | name := filepath.Base(src) |
2798 | if !strings.Contains(name, ".") { |
2799 | result[i] = fmt.Sprintf("%d.go", i) // make cache names predictable |
2800 | } else { |
2801 | result[i] = name |
2802 | } |
2803 | } |
2804 | return result |
2805 | } |
2806 | |
2807 | // importGraph returns the import graph as a user-friendly string, |
2808 | // and a map containing all packages keyed by ID. |
2809 | func importGraph(initial []*packages.Package) (string, map[string]*packages.Package) { |
2810 | out := new(bytes.Buffer) |
2811 | |
2812 | initialSet := make(map[*packages.Package]bool) |
2813 | for _, p := range initial { |
2814 | initialSet[p] = true |
2815 | } |
2816 | |
2817 | // We can't use Visit because we need to prune |
2818 | // the traversal of specific edges, not just nodes. |
2819 | var nodes, edges []string |
2820 | res := make(map[string]*packages.Package) |
2821 | seen := make(map[*packages.Package]bool) |
2822 | var visit func(p *packages.Package) |
2823 | visit = func(p *packages.Package) { |
2824 | if !seen[p] { |
2825 | seen[p] = true |
2826 | if res[p.ID] != nil { |
2827 | panic("duplicate ID: " + p.ID) |
2828 | } |
2829 | res[p.ID] = p |
2830 | |
2831 | star := ' ' // mark initial packages with a star |
2832 | if initialSet[p] { |
2833 | star = '*' |
2834 | } |
2835 | nodes = append(nodes, fmt.Sprintf("%c %s", star, p.ID)) |
2836 | |
2837 | // To avoid a lot of noise, |
2838 | // we prune uninteresting dependencies of testmain packages, |
2839 | // which we identify by this import: |
2840 | isTestMain := p.Imports["testing/internal/testdeps"] != nil |
2841 | |
2842 | for _, imp := range p.Imports { |
2843 | if isTestMain { |
2844 | switch imp.ID { |
2845 | case "os", "reflect", "testing", "testing/internal/testdeps": |
2846 | continue |
2847 | } |
2848 | } |
2849 | // math/bits took on a dependency on unsafe in 1.12, which breaks some |
2850 | // tests. As a short term hack, prune that edge. |
2851 | // ditto for ("errors", "internal/reflectlite") in 1.13. |
2852 | // TODO(matloob): think of a cleaner solution, or remove math/bits from the test. |
2853 | if p.ID == "math/bits" && imp.ID == "unsafe" { |
2854 | continue |
2855 | } |
2856 | edges = append(edges, fmt.Sprintf("%s -> %s", p, imp)) |
2857 | visit(imp) |
2858 | } |
2859 | } |
2860 | } |
2861 | for _, p := range initial { |
2862 | visit(p) |
2863 | } |
2864 | |
2865 | // Sort, ignoring leading optional star prefix. |
2866 | sort.Slice(nodes, func(i, j int) bool { return nodes[i][2:] < nodes[j][2:] }) |
2867 | for _, node := range nodes { |
2868 | fmt.Fprintf(out, "%s\n", node) |
2869 | } |
2870 | |
2871 | sort.Strings(edges) |
2872 | for _, edge := range edges { |
2873 | fmt.Fprintf(out, " %s\n", edge) |
2874 | } |
2875 | |
2876 | return out.String(), res |
2877 | } |
2878 | |
2879 | func constant(p *packages.Package, name string) *types.Const { |
2880 | if p == nil || p.Types == nil { |
2881 | return nil |
2882 | } |
2883 | c := p.Types.Scope().Lookup(name) |
2884 | if c == nil { |
2885 | return nil |
2886 | } |
2887 | return c.(*types.Const) |
2888 | } |
2889 | |
2890 | func copyAll(srcPath, dstPath string) error { |
2891 | return filepath.Walk(srcPath, func(path string, info os.FileInfo, _ error) error { |
2892 | if info.IsDir() { |
2893 | return nil |
2894 | } |
2895 | contents, err := ioutil.ReadFile(path) |
2896 | if err != nil { |
2897 | return err |
2898 | } |
2899 | rel, err := filepath.Rel(srcPath, path) |
2900 | if err != nil { |
2901 | return err |
2902 | } |
2903 | dstFilePath := strings.Replace(filepath.Join(dstPath, rel), "definitelynot_go.mod", "go.mod", -1) |
2904 | if err := os.MkdirAll(filepath.Dir(dstFilePath), 0755); err != nil { |
2905 | return err |
2906 | } |
2907 | if err := ioutil.WriteFile(dstFilePath, contents, 0644); err != nil { |
2908 | return err |
2909 | } |
2910 | return nil |
2911 | }) |
2912 | } |
2913 | |
2914 | func TestExportFile(t *testing.T) { |
2915 | // This used to trigger the log.Fatal in loadFromExportData. |
2916 | // See go.dev/issue/45584. |
2917 | cfg := new(packages.Config) |
2918 | cfg.Mode = packages.NeedTypes |
2919 | packages.Load(cfg, "fmt") |
2920 | } |
2921 |
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