mirror of git://gcc.gnu.org/git/gcc.git
82 lines
1.7 KiB
Go
82 lines
1.7 KiB
Go
// Copyright 2012 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 os_test
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import (
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"testing"
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)
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func TestErrIsExist(t *testing.T) {
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f, err := ioutil.TempFile("", "_Go_ErrIsExist")
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if err != nil {
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t.Fatalf("open ErrIsExist tempfile: %s", err)
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return
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}
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defer os.Remove(f.Name())
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defer f.Close()
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f2, err := os.OpenFile(f.Name(), os.O_RDWR|os.O_CREATE|os.O_EXCL, 0600)
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if err == nil {
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f2.Close()
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t.Fatal("Open should have failed")
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return
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}
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if s := checkErrorPredicate("os.IsExist", os.IsExist, err); s != "" {
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t.Fatal(s)
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return
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}
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}
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func testErrNotExist(name string) string {
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f, err := os.Open(name)
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if err == nil {
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f.Close()
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return "Open should have failed"
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}
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if s := checkErrorPredicate("os.IsNotExist", os.IsNotExist, err); s != "" {
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return s
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}
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err = os.Chdir(name)
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if err == nil {
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return "Chdir should have failed"
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}
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if s := checkErrorPredicate("os.IsNotExist", os.IsNotExist, err); s != "" {
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return s
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}
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return ""
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}
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func TestErrIsNotExist(t *testing.T) {
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tmpDir, err := ioutil.TempDir("", "_Go_ErrIsNotExist")
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if err != nil {
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t.Fatalf("create ErrIsNotExist tempdir: %s", err)
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return
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}
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defer os.RemoveAll(tmpDir)
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name := filepath.Join(tmpDir, "NotExists")
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if s := testErrNotExist(name); s != "" {
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t.Fatal(s)
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return
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}
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name = filepath.Join(name, "NotExists2")
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if s := testErrNotExist(name); s != "" {
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t.Fatal(s)
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return
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}
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}
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func checkErrorPredicate(predName string, pred func(error) bool, err error) string {
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if !pred(err) {
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return fmt.Sprintf("%s does not work as expected for %#v", predName, err)
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}
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return ""
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}
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