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