libgo/go/io/ioutil/tempfile_test.go

   1 // Copyright 2010 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 package ioutil_test
   6
   7 import (
   8         . "io/ioutil"
   9         "os"
  10         "regexp"
  11         "testing"
  12 )
  13
  14 func TestTempFile(t *testing.T) {
  15         f, err := TempFile("/_not_exists_", "foo")
  16         if f != nil || err == nil {
  17                 t.Errorf("TempFile(`/_not_exists_`, `foo`) = %v, %v", f, err)
  18         }
  19
  20         dir := os.TempDir()
  21         f, err = TempFile(dir, "ioutil_test")
  22         if f == nil || err != nil {
  23                 t.Errorf("TempFile(dir, `ioutil_test`) = %v, %v", f, err)
  24         }
  25         if f != nil {
  26                 re := regexp.MustCompile("^" + regexp.QuoteMeta(dir) + "/ioutil_test[0-9]+$")
  27                 if !re.MatchString(f.Name()) {
  28                         t.Errorf("TempFile(`"+dir+"`, `ioutil_test`) created bad name %s", f.Name())
  29                 }
  30                 os.Remove(f.Name())
  31         }
  32         f.Close()
  33 }