mirror of
https://github.com/golang/go
synced 2024-11-19 07:04:43 -07:00
07e766bf81
Reason: ContainingPackage must do all I/O through build.Context.
This reverts commit c945ee3be4.
Change-Id: I625410bc754ea2d150be097bf424de2be42acde4
Reviewed-on: https://go-review.googlesource.com/33921
Reviewed-by: Alan Donovan <adonovan@google.com>
86 lines
2.9 KiB
Go
86 lines
2.9 KiB
Go
// Copyright 2013 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"fmt"
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"go/build"
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"io/ioutil"
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"os"
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"strings"
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"testing"
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)
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// Unit tests for internal guru functions
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func TestIssue17515(t *testing.T) {
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// Tests handling of symlinks in function guessImportPath
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// If we have Go code inside $HOME/go/src and create a symlink $HOME/src to it
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// there are 4 possible cases that need to be tested:
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// (1) absolute & absolute: GOPATH=$HOME/go/src file=$HOME/go/src/test/test.go
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// (2) absolute & symlink: GOPATH=$HOME/go/src file=$HOME/src/test/test.go
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// (3) symlink & symlink: GOPATH=$HOME/src file=$HOME/src/test/test.go
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// (4) symlink & absolute: GOPATH=$HOME/src file= $HOME/go/src/test/test.go
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// Create a temporary home directory under /tmp
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home, err := ioutil.TempDir(os.TempDir(), "home")
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if err != nil {
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t.Errorf("Unable to create a temporary directory in %s", os.TempDir())
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}
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// create filepath /tmp/home/go/src/test/test.go
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if err = os.MkdirAll(home+"/go/src/test", 0755); err != nil {
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t.Fatal(err)
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}
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// symlink between /tmp/home/go/src and /tmp/home/src
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if err = os.Symlink(home+"/go/src", home+"/src"); err != nil {
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t.Fatal(err)
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}
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// Defer tear down (removing files, symlinks)
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defer os.RemoveAll(home)
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var buildContext = build.Default
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// Success test cases
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for _, test := range []struct {
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gopath, filename, wantSrcdir string
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}{
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{home + "/go", home + "/go/src/test/test.go", home + "/go/src"},
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{home + "/go", home + "/src/test/test.go", home + "/go/src"},
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{home, home + "/src/test/test.go", home + "/src"},
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{home, home + "/go/src/test/test.go", home + "/src"},
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} {
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buildContext.GOPATH = test.gopath
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srcdir, importPath, err := guessImportPath(test.filename, &buildContext)
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if srcdir != test.wantSrcdir || importPath != "test" || err != nil {
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t.Errorf("guessImportPath(%v, %v) = %v, %v, %v; want %v, %v, %v",
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test.filename, test.gopath, srcdir, importPath, err, test.wantSrcdir, "test", "nil")
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}
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}
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// Function to format expected error message
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errFormat := func(fpath string) string {
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return fmt.Sprintf("can't evaluate symlinks of %s", fpath)
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}
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// Failure test cases
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for _, test := range []struct {
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gopath, filename, wantErr string
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}{
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{home + "/go", home + "/go/src/fake/test.go", errFormat(home + "/go/src/fake")},
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{home + "/go", home + "/src/fake/test.go", errFormat(home + "/src/fake")},
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{home, home + "/src/fake/test.go", errFormat(home + "/src/fake")},
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{home, home + "/go/src/fake/test.go", errFormat(home + "/go/src/fake")},
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} {
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buildContext.GOPATH = test.gopath
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srcdir, importPath, err := guessImportPath(test.filename, &buildContext)
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if !strings.HasPrefix(fmt.Sprint(err), test.wantErr) {
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t.Errorf("guessImportPath(%v, %v) = %v, %v, %v; want %v, %v, %v",
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test.filename, test.gopath, srcdir, importPath, err, "", "", test.wantErr)
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}
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}
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}
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