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// 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 (
"io/ioutil"
"os"
"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 !os.IsExist(err) {
t.Fatalf("os.IsExist does not work as expected for %#v", err)
return
}
}
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