go build_test 源码
golang build_test 代码
文件路径：/src/go/build/build_test.go
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package build
import (
"internal/testenv"
"io"
"os"
"path/filepath"
"reflect"
"runtime"
"strings"
"testing"
)
func TestMain(m *testing.M) {
Default.GOROOT = testenv.GOROOT(nil)
os.Exit(m.Run())
}
func TestMatch(t *testing.T) {
ctxt := Default
what := "default"
match := func(tag string, want map[string]bool) {
t.Helper()
m := make(map[string]bool)
if !ctxt.matchAuto(tag, m) {
t.Errorf("%s context should match %s, does not", what, tag)
}
if !reflect.DeepEqual(m, want) {
t.Errorf("%s tags = %v, want %v", tag, m, want)
}
}
nomatch := func(tag string, want map[string]bool) {
t.Helper()
m := make(map[string]bool)
if ctxt.matchAuto(tag, m) {
t.Errorf("%s context should NOT match %s, does", what, tag)
}
if !reflect.DeepEqual(m, want) {
t.Errorf("%s tags = %v, want %v", tag, m, want)
}
}
match(runtime.GOOS+","+runtime.GOARCH, map[string]bool{runtime.GOOS: true, runtime.GOARCH: true})
match(runtime.GOOS+","+runtime.GOARCH+",!foo", map[string]bool{runtime.GOOS: true, runtime.GOARCH: true, "foo": true})
nomatch(runtime.GOOS+","+runtime.GOARCH+",foo", map[string]bool{runtime.GOOS: true, runtime.GOARCH: true, "foo": true})
what = "modified"
ctxt.BuildTags = []string{"foo"}
match(runtime.GOOS+","+runtime.GOARCH, map[string]bool{runtime.GOOS: true, runtime.GOARCH: true})
match(runtime.GOOS+","+runtime.GOARCH+",foo", map[string]bool{runtime.GOOS: true, runtime.GOARCH: true, "foo": true})
nomatch(runtime.GOOS+","+runtime.GOARCH+",!foo", map[string]bool{runtime.GOOS: true, runtime.GOARCH: true, "foo": true})
match(runtime.GOOS+","+runtime.GOARCH+",!bar", map[string]bool{runtime.GOOS: true, runtime.GOARCH: true, "bar": true})
nomatch(runtime.GOOS+","+runtime.GOARCH+",bar", map[string]bool{runtime.GOOS: true, runtime.GOARCH: true, "bar": true})
}
func TestDotSlashImport(t *testing.T) {
p, err := ImportDir("testdata/other", 0)
if err != nil {
t.Fatal(err)
}
if len(p.Imports) != 1 || p.Imports[0] != "./file" {
t.Fatalf("testdata/other: Imports=%v, want [./file]", p.Imports)
}
p1, err := Import("./file", "testdata/other", 0)
if err != nil {
t.Fatal(err)
}
if p1.Name != "file" {
t.Fatalf("./file: Name=%q, want %q", p1.Name, "file")
}
dir := filepath.Clean("testdata/other/file") // Clean to use \ on Windows
if p1.Dir != dir {
t.Fatalf("./file: Dir=%q, want %q", p1.Name, dir)
}
}
func TestEmptyImport(t *testing.T) {
p, err := Import("", testenv.GOROOT(t), FindOnly)
if err == nil {
t.Fatal(`Import("") returned nil error.`)
}
if p == nil {
t.Fatal(`Import("") returned nil package.`)
}
if p.ImportPath != "" {
t.Fatalf("ImportPath=%q, want %q.", p.ImportPath, "")
}
}
func TestEmptyFolderImport(t *testing.T) {
_, err := Import(".", "testdata/empty", 0)
if _, ok := err.(*NoGoError); !ok {
t.Fatal(`Import("testdata/empty") did not return NoGoError.`)
}
}
func TestMultiplePackageImport(t *testing.T) {
pkg, err := Import(".", "testdata/multi", 0)
mpe, ok := err.(*MultiplePackageError)
if !ok {
t.Fatal(`Import("testdata/multi") did not return MultiplePackageError.`)
}
want := &MultiplePackageError{
Dir: filepath.FromSlash("testdata/multi"),
Packages: []string{"main", "test_package"},
Files: []string{"file.go", "file_appengine.go"},
}
if !reflect.DeepEqual(mpe, want) {
t.Errorf("err = %#v; want %#v", mpe, want)
}
// TODO(#45999): Since the name is ambiguous, pkg.Name should be left empty.
if wantName := "main"; pkg.Name != wantName {
t.Errorf("pkg.Name = %q; want %q", pkg.Name, wantName)
}
if wantGoFiles := []string{"file.go", "file_appengine.go"}; !reflect.DeepEqual(pkg.GoFiles, wantGoFiles) {
t.Errorf("pkg.GoFiles = %q; want %q", pkg.GoFiles, wantGoFiles)
}
if wantInvalidFiles := []string{"file_appengine.go"}; !reflect.DeepEqual(pkg.InvalidGoFiles, wantInvalidFiles) {
t.Errorf("pkg.InvalidGoFiles = %q; want %q", pkg.InvalidGoFiles, wantInvalidFiles)
}
}
func TestLocalDirectory(t *testing.T) {
if runtime.GOOS == "ios" {
t.Skipf("skipping on %s/%s, no valid GOROOT", runtime.GOOS, runtime.GOARCH)
}
cwd, err := os.Getwd()
if err != nil {
t.Fatal(err)
}
p, err := ImportDir(cwd, 0)
if err != nil {
t.Fatal(err)
}
if p.ImportPath != "go/build" {
t.Fatalf("ImportPath=%q, want %q", p.ImportPath, "go/build")
}
}
var shouldBuildTests = []struct {
name string
content string
tags map[string]bool
binaryOnly bool
shouldBuild bool
err error
}{
{
name: "Yes",
content: "// +build yes\n\n" +
"package main\n",
tags: map[string]bool{"yes": true},
shouldBuild: true,
},
{
name: "Yes2",
content: "//go:build yes\n" +
"package main\n",
tags: map[string]bool{"yes": true},
shouldBuild: true,
},
{
name: "Or",
content: "// +build no yes\n\n" +
"package main\n",
tags: map[string]bool{"yes": true, "no": true},
shouldBuild: true,
},
{
name: "Or2",
content: "//go:build no || yes\n" +
"package main\n",
tags: map[string]bool{"yes": true, "no": true},
shouldBuild: true,
},
{
name: "And",
content: "// +build no,yes\n\n" +
"package main\n",
tags: map[string]bool{"yes": true, "no": true},
shouldBuild: false,
},
{
name: "And2",
content: "//go:build no && yes\n" +
"package main\n",
tags: map[string]bool{"yes": true, "no": true},
shouldBuild: false,
},
{
name: "Cgo",
content: "// +build cgo\n\n" +
"// Copyright The Go Authors.\n\n" +
"// This package implements parsing of tags like\n" +
"// +build tag1\n" +
"package build",
tags: map[string]bool{"cgo": true},
shouldBuild: false,
},
{
name: "Cgo2",
content: "//go:build cgo\n" +
"// Copyright The Go Authors.\n\n" +
"// This package implements parsing of tags like\n" +
"// +build tag1\n" +
"package build",
tags: map[string]bool{"cgo": true},
shouldBuild: false,
},
{
name: "AfterPackage",
content: "// Copyright The Go Authors.\n\n" +
"package build\n\n" +
"// shouldBuild checks tags given by lines of the form\n" +
"// +build tag\n" +
"//go:build tag\n" +
"func shouldBuild(content []byte)\n",
tags: map[string]bool{},
shouldBuild: true,
},
{
name: "TooClose",
content: "// +build yes\n" +
"package main\n",
tags: map[string]bool{},
shouldBuild: true,
},
{
name: "TooClose2",
content: "//go:build yes\n" +
"package main\n",
tags: map[string]bool{"yes": true},
shouldBuild: true,
},
{
name: "TooCloseNo",
content: "// +build no\n" +
"package main\n",
tags: map[string]bool{},
shouldBuild: true,
},
{
name: "TooCloseNo2",
content: "//go:build no\n" +
"package main\n",
tags: map[string]bool{"no": true},
shouldBuild: false,
},
{
name: "BinaryOnly",
content: "//go:binary-only-package\n" +
"// +build yes\n" +
"package main\n",
tags: map[string]bool{},
binaryOnly: true,
shouldBuild: true,
},
{
name: "BinaryOnly2",
content: "//go:binary-only-package\n" +
"//go:build no\n" +
"package main\n",
tags: map[string]bool{"no": true},
binaryOnly: true,
shouldBuild: false,
},
{
name: "ValidGoBuild",
content: "// +build yes\n\n" +
"//go:build no\n" +
"package main\n",
tags: map[string]bool{"no": true},
shouldBuild: false,
},
{
name: "MissingBuild2",
content: "/* */\n" +
"// +build yes\n\n" +
"//go:build no\n" +
"package main\n",
tags: map[string]bool{"no": true},
shouldBuild: false,
},
{
name: "Comment1",
content: "/*\n" +
"//go:build no\n" +
"*/\n\n" +
"package main\n",
tags: map[string]bool{},
shouldBuild: true,
},
{
name: "Comment2",
content: "/*\n" +
"text\n" +
"*/\n\n" +
"//go:build no\n" +
"package main\n",
tags: map[string]bool{"no": true},
shouldBuild: false,
},
{
name: "Comment3",
content: "/*/*/ /* hi *//* \n" +
"text\n" +
"*/\n\n" +
"//go:build no\n" +
"package main\n",
tags: map[string]bool{"no": true},
shouldBuild: false,
},
{
name: "Comment4",
content: "/**///go:build no\n" +
"package main\n",
tags: map[string]bool{},
shouldBuild: true,
},
{
name: "Comment5",
content: "/**/\n" +
"//go:build no\n" +
"package main\n",
tags: map[string]bool{"no": true},
shouldBuild: false,
},
}
func TestShouldBuild(t *testing.T) {
for _, tt := range shouldBuildTests {
t.Run(tt.name, func(t *testing.T) {
ctx := &Context{BuildTags: []string{"yes"}}
tags := map[string]bool{}
shouldBuild, binaryOnly, err := ctx.shouldBuild([]byte(tt.content), tags)
if shouldBuild != tt.shouldBuild || binaryOnly != tt.binaryOnly || !reflect.DeepEqual(tags, tt.tags) || err != tt.err {
t.Errorf("mismatch:\n"+
"have shouldBuild=%v, binaryOnly=%v, tags=%v, err=%v\n"+
"want shouldBuild=%v, binaryOnly=%v, tags=%v, err=%v",
shouldBuild, binaryOnly, tags, err,
tt.shouldBuild, tt.binaryOnly, tt.tags, tt.err)
}
})
}
}
func TestGoodOSArchFile(t *testing.T) {
ctx := &Context{BuildTags: []string{"linux"}, GOOS: "darwin"}
m := map[string]bool{}
want := map[string]bool{"linux": true}
if !ctx.goodOSArchFile("hello_linux.go", m) {
t.Errorf("goodOSArchFile(hello_linux.go) = false, want true")
}
if !reflect.DeepEqual(m, want) {
t.Errorf("goodOSArchFile(hello_linux.go) tags = %v, want %v", m, want)
}
}
type readNopCloser struct {
io.Reader
}
func (r readNopCloser) Close() error {
return nil
}
var (
ctxtP9 = Context{GOARCH: "arm", GOOS: "plan9"}
ctxtAndroid = Context{GOARCH: "arm", GOOS: "android"}
)
var matchFileTests = []struct {
ctxt Context
name string
data string
match bool
}{
{ctxtP9, "foo_arm.go", "", true},
{ctxtP9, "foo1_arm.go", "// +build linux\n\npackage main\n", false},
{ctxtP9, "foo_darwin.go", "", false},
{ctxtP9, "foo.go", "", true},
{ctxtP9, "foo1.go", "// +build linux\n\npackage main\n", false},
{ctxtP9, "foo.badsuffix", "", false},
{ctxtAndroid, "foo_linux.go", "", true},
{ctxtAndroid, "foo_android.go", "", true},
{ctxtAndroid, "foo_plan9.go", "", false},
{ctxtAndroid, "android.go", "", true},
{ctxtAndroid, "plan9.go", "", true},
{ctxtAndroid, "plan9_test.go", "", true},
{ctxtAndroid, "arm.s", "", true},
{ctxtAndroid, "amd64.s", "", true},
}
func TestMatchFile(t *testing.T) {
for _, tt := range matchFileTests {
ctxt := tt.ctxt
ctxt.OpenFile = func(path string) (r io.ReadCloser, err error) {
if path != "x+"+tt.name {
t.Fatalf("OpenFile asked for %q, expected %q", path, "x+"+tt.name)
}
return &readNopCloser{strings.NewReader(tt.data)}, nil
}
ctxt.JoinPath = func(elem ...string) string {
return strings.Join(elem, "+")
}
match, err := ctxt.MatchFile("x", tt.name)
if match != tt.match || err != nil {
t.Fatalf("MatchFile(%q) = %v, %v, want %v, nil", tt.name, match, err, tt.match)
}
}
}
func TestImportCmd(t *testing.T) {
if runtime.GOOS == "ios" {
t.Skipf("skipping on %s/%s, no valid GOROOT", runtime.GOOS, runtime.GOARCH)
}
p, err := Import("cmd/internal/objfile", "", 0)
if err != nil {
t.Fatal(err)
}
if !strings.HasSuffix(filepath.ToSlash(p.Dir), "src/cmd/internal/objfile") {
t.Fatalf("Import cmd/internal/objfile returned Dir=%q, want %q", filepath.ToSlash(p.Dir), ".../src/cmd/internal/objfile")
}
}
var (
expandSrcDirPath = filepath.Join(string(filepath.Separator)+"projects", "src", "add")
)
var expandSrcDirTests = []struct {
input, expected string
}{
{"-L ${SRCDIR}/libs -ladd", "-L /projects/src/add/libs -ladd"},
{"${SRCDIR}/add_linux_386.a -pthread -lstdc++", "/projects/src/add/add_linux_386.a -pthread -lstdc++"},
{"Nothing to expand here!", "Nothing to expand here!"},
{"$", "$"},
{"$$", "$$"},
{"${", "${"},
{"$}", "$}"},
{"$FOO ${BAR}", "$FOO ${BAR}"},
{"Find me the $SRCDIRECTORY.", "Find me the $SRCDIRECTORY."},
{"$SRCDIR is missing braces", "$SRCDIR is missing braces"},
}
func TestExpandSrcDir(t *testing.T) {
for _, test := range expandSrcDirTests {
output, _ := expandSrcDir(test.input, expandSrcDirPath)
if output != test.expected {
t.Errorf("%q expands to %q with SRCDIR=%q when %q is expected", test.input, output, expandSrcDirPath, test.expected)
} else {
t.Logf("%q expands to %q with SRCDIR=%q", test.input, output, expandSrcDirPath)
}
}
}
func TestShellSafety(t *testing.T) {
tests := []struct {
input, srcdir, expected string
result bool
}{
{"-I${SRCDIR}/../include", "/projects/src/issue 11868", "-I/projects/src/issue 11868/../include", true},
{"-I${SRCDIR}", "~wtf$@%^", "-I~wtf$@%^", true},
{"-X${SRCDIR}/1,${SRCDIR}/2", "/projects/src/issue 11868", "-X/projects/src/issue 11868/1,/projects/src/issue 11868/2", true},
{"-I/tmp -I/tmp", "/tmp2", "-I/tmp -I/tmp", true},
{"-I/tmp", "/tmp/[0]", "-I/tmp", true},
{"-I${SRCDIR}/dir", "/tmp/[0]", "-I/tmp/[0]/dir", false},
{"-I${SRCDIR}/dir", "/tmp/go go", "-I/tmp/go go/dir", true},
{"-I${SRCDIR}/dir dir", "/tmp/go", "-I/tmp/go/dir dir", true},
}
for _, test := range tests {
output, ok := expandSrcDir(test.input, test.srcdir)
if ok != test.result {
t.Errorf("Expected %t while %q expands to %q with SRCDIR=%q; got %t", test.result, test.input, output, test.srcdir, ok)
}
if output != test.expected {
t.Errorf("Expected %q while %q expands with SRCDIR=%q; got %q", test.expected, test.input, test.srcdir, output)
}
}
}
// Want to get a "cannot find package" error when directory for package does not exist.
// There should be valid partial information in the returned non-nil *Package.
func TestImportDirNotExist(t *testing.T) {
testenv.MustHaveGoBuild(t) // really must just have source
ctxt := Default
emptyDir := t.TempDir()
ctxt.GOPATH = emptyDir
ctxt.Dir = emptyDir
tests := []struct {
label string
path, srcDir string
mode ImportMode
}{
{"Import(full, 0)", "go/build/doesnotexist", "", 0},
{"Import(local, 0)", "./doesnotexist", filepath.Join(ctxt.GOROOT, "src/go/build"), 0},
{"Import(full, FindOnly)", "go/build/doesnotexist", "", FindOnly},
{"Import(local, FindOnly)", "./doesnotexist", filepath.Join(ctxt.GOROOT, "src/go/build"), FindOnly},
}
defer os.Setenv("GO111MODULE", os.Getenv("GO111MODULE"))
for _, GO111MODULE := range []string{"off", "on"} {
t.Run("GO111MODULE="+GO111MODULE, func(t *testing.T) {
os.Setenv("GO111MODULE", GO111MODULE)
for _, test := range tests {
p, err := ctxt.Import(test.path, test.srcDir, test.mode)
errOk := (err != nil && strings.HasPrefix(err.Error(), "cannot find package"))
wantErr := `"cannot find package" error`
if test.srcDir == "" {
if err != nil && strings.Contains(err.Error(), "is not in GOROOT") {
errOk = true
}
wantErr = `"cannot find package" or "is not in GOROOT" error`
}
if !errOk {
t.Errorf("%s got error: %q, want %s", test.label, err, wantErr)
}
// If an error occurs, build.Import is documented to return
// a non-nil *Package containing partial information.
if p == nil {
t.Fatalf(`%s got nil p, want non-nil *Package`, test.label)
}
// Verify partial information in p.
if p.ImportPath != "go/build/doesnotexist" {
t.Errorf(`%s got p.ImportPath: %q, want "go/build/doesnotexist"`, test.label, p.ImportPath)
}
}
})
}
}
func TestImportVendor(t *testing.T) {
testenv.MustHaveGoBuild(t) // really must just have source
t.Setenv("GO111MODULE", "off")
ctxt := Default
wd, err := os.Getwd()
if err != nil {
t.Fatal(err)
}
ctxt.GOPATH = filepath.Join(wd, "testdata/withvendor")
p, err := ctxt.Import("c/d", filepath.Join(ctxt.GOPATH, "src/a/b"), 0)
if err != nil {
t.Fatalf("cannot find vendored c/d from testdata src/a/b directory: %v", err)
}
want := "a/vendor/c/d"
if p.ImportPath != want {
t.Fatalf("Import succeeded but found %q, want %q", p.ImportPath, want)
}
}
func BenchmarkImportVendor(b *testing.B) {
testenv.MustHaveGoBuild(b) // really must just have source
b.Setenv("GO111MODULE", "off")
ctxt := Default
wd, err := os.Getwd()
if err != nil {
b.Fatal(err)
}
ctxt.GOPATH = filepath.Join(wd, "testdata/withvendor")
dir := filepath.Join(ctxt.GOPATH, "src/a/b")
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, err := ctxt.Import("c/d", dir, 0)
if err != nil {
b.Fatalf("cannot find vendored c/d from testdata src/a/b directory: %v", err)
}
}
}
func TestImportVendorFailure(t *testing.T) {
testenv.MustHaveGoBuild(t) // really must just have source
t.Setenv("GO111MODULE", "off")
ctxt := Default
wd, err := os.Getwd()
if err != nil {
t.Fatal(err)
}
ctxt.GOPATH = filepath.Join(wd, "testdata/withvendor")
p, err := ctxt.Import("x.com/y/z", filepath.Join(ctxt.GOPATH, "src/a/b"), 0)
if err == nil {
t.Fatalf("found made-up package x.com/y/z in %s", p.Dir)
}
e := err.Error()
if !strings.Contains(e, " (vendor tree)") {
t.Fatalf("error on failed import does not mention GOROOT/src/vendor directory:\n%s", e)
}
}
func TestImportVendorParentFailure(t *testing.T) {
testenv.MustHaveGoBuild(t) // really must just have source
t.Setenv("GO111MODULE", "off")
ctxt := Default
wd, err := os.Getwd()
if err != nil {
t.Fatal(err)
}
ctxt.GOPATH = filepath.Join(wd, "testdata/withvendor")
// This import should fail because the vendor/c directory has no source code.
p, err := ctxt.Import("c", filepath.Join(ctxt.GOPATH, "src/a/b"), 0)
if err == nil {
t.Fatalf("found empty parent in %s", p.Dir)
}
if p != nil && p.Dir != "" {
t.Fatalf("decided to use %s", p.Dir)
}
e := err.Error()
if !strings.Contains(e, " (vendor tree)") {
t.Fatalf("error on failed import does not mention GOROOT/src/vendor directory:\n%s", e)
}
}
// Check that a package is loaded in module mode if GO111MODULE=on, even when
// no go.mod file is present. It should fail to resolve packages outside std.
// Verifies golang.org/issue/34669.
func TestImportPackageOutsideModule(t *testing.T) {
testenv.MustHaveGoBuild(t)
// Disable module fetching for this test so that 'go list' fails quickly
// without trying to find the latest version of a module.
t.Setenv("GOPROXY", "off")
// Create a GOPATH in a temporary directory. We don't use testdata
// because it's in GOROOT, which interferes with the module heuristic.
gopath := t.TempDir()
if err := os.MkdirAll(filepath.Join(gopath, "src/example.com/p"), 0777); err != nil {
t.Fatal(err)
}
if err := os.WriteFile(filepath.Join(gopath, "src/example.com/p/p.go"), []byte("package p"), 0666); err != nil {
t.Fatal(err)
}
t.Setenv("GO111MODULE", "on")
t.Setenv("GOPATH", gopath)
ctxt := Default
ctxt.GOPATH = gopath
ctxt.Dir = filepath.Join(gopath, "src/example.com/p")
want := "go.mod file not found in current directory or any parent directory"
if _, err := ctxt.Import("example.com/p", gopath, FindOnly); err == nil {
t.Fatal("importing package when no go.mod is present succeeded unexpectedly")
} else if errStr := err.Error(); !strings.Contains(errStr, want) {
t.Fatalf("error when importing package when no go.mod is present: got %q; want %q", errStr, want)
} else {
t.Logf(`ctxt.Import("example.com/p", _, FindOnly): %v`, err)
}
}
func TestImportDirTarget(t *testing.T) {
testenv.MustHaveGoBuild(t) // really must just have source
ctxt := Default
ctxt.GOPATH = ""
p, err := ctxt.ImportDir(filepath.Join(testenv.GOROOT(t), "src/path"), 0)
if err != nil {
t.Fatal(err)
}
if p.PkgTargetRoot == "" || p.PkgObj == "" {
t.Errorf("p.PkgTargetRoot == %q, p.PkgObj == %q, want non-empty", p.PkgTargetRoot, p.PkgObj)
}
}
// TestIssue23594 prevents go/build from regressing and populating Package.Doc
// from comments in test files.
func TestIssue23594(t *testing.T) {
// Package testdata/doc contains regular and external test files
// with comments attached to their package declarations. The names of the files
// ensure that we see the comments from the test files first.
p, err := ImportDir("testdata/doc", 0)
if err != nil {
t.Fatalf("could not import testdata: %v", err)
}
if p.Doc != "Correct" {
t.Fatalf("incorrectly set .Doc to %q", p.Doc)
}
}
// TestMissingImportErrorRepetition checks that when an unknown package is
// imported, the package path is only shown once in the error.
// Verifies golang.org/issue/34752.
func TestMissingImportErrorRepetition(t *testing.T) {
testenv.MustHaveGoBuild(t) // need 'go list' internally
tmp := t.TempDir()
if err := os.WriteFile(filepath.Join(tmp, "go.mod"), []byte("module m"), 0666); err != nil {
t.Fatal(err)
}
t.Setenv("GO111MODULE", "on")
t.Setenv("GOPROXY", "off")
t.Setenv("GONOPROXY", "none")
ctxt := Default
ctxt.Dir = tmp
pkgPath := "example.com/hello"
_, err := ctxt.Import(pkgPath, tmp, FindOnly)
if err == nil {
t.Fatal("unexpected success")
}
// Don't count the package path with a URL like https://...?go-get=1.
// See golang.org/issue/35986.
errStr := strings.ReplaceAll(err.Error(), "://"+pkgPath+"?go-get=1", "://...?go-get=1")
// Also don't count instances in suggested "go get" or similar commands
// (see https://golang.org/issue/41576). The suggested command typically
// follows a semicolon.
errStr, _, _ = strings.Cut(errStr, ";")
if n := strings.Count(errStr, pkgPath); n != 1 {
t.Fatalf("package path %q appears in error %d times; should appear once\nerror: %v", pkgPath, n, err)
}
}
// TestCgoImportsIgnored checks that imports in cgo files are not included
// in the imports list when cgo is disabled.
// Verifies golang.org/issue/35946.
func TestCgoImportsIgnored(t *testing.T) {
ctxt := Default
ctxt.CgoEnabled = false
p, err := ctxt.ImportDir("testdata/cgo_disabled", 0)
if err != nil {
t.Fatal(err)
}
for _, path := range p.Imports {
if path == "should/be/ignored" {
t.Errorf("found import %q in ignored cgo file", path)
}
}
}
// Issue #52053. Check that if there is a file x_GOOS_GOARCH.go that both
// GOOS and GOARCH show up in the Package.AllTags field. We test both the
// case where the file matches and where the file does not match.
// The latter case used to fail, incorrectly omitting GOOS.
func TestAllTags(t *testing.T) {
ctxt := Default
ctxt.GOARCH = "arm"
ctxt.GOOS = "netbsd"
p, err := ctxt.ImportDir("testdata/alltags", 0)
if err != nil {
t.Fatal(err)
}
want := []string{"arm", "netbsd"}
if !reflect.DeepEqual(p.AllTags, want) {
t.Errorf("AllTags = %v, want %v", p.AllTags, want)
}
wantFiles := []string{"alltags.go", "x_netbsd_arm.go"}
if !reflect.DeepEqual(p.GoFiles, wantFiles) {
t.Errorf("GoFiles = %v, want %v", p.GoFiles, wantFiles)
}
ctxt.GOARCH = "amd64"
ctxt.GOOS = "linux"
p, err = ctxt.ImportDir("testdata/alltags", 0)
if err != nil {
t.Fatal(err)
}
if !reflect.DeepEqual(p.AllTags, want) {
t.Errorf("AllTags = %v, want %v", p.AllTags, want)
}
wantFiles = []string{"alltags.go"}
if !reflect.DeepEqual(p.GoFiles, wantFiles) {
t.Errorf("GoFiles = %v, want %v", p.GoFiles, wantFiles)
}
}
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