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// Copyright 2010 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 ioutil_test

import (

        . "io/ioutil"

        "os"

        "path/filepath"

        "regexp"

        "testing"

)

func TestTempFile(t *testing.T) {

        f, err := TempFile("/_not_exists_", "foo")

        if f != nil || err == nil {

                t.Errorf("TempFile(`/_not_exists_`, `foo`) = %v, %v", f, err)

        }

        dir := os.TempDir()

        f, err = TempFile(dir, "ioutil_test")

        if f == nil || err != nil {

                t.Errorf("TempFile(dir, `ioutil_test`) = %v, %v", f, err)

        }

        if f != nil {

                f.Close()

                os.Remove(f.Name())

                re := regexp.MustCompile("^" + regexp.QuoteMeta(filepath.Join(dir, "ioutil_test")) + "[0-9]+$")

                if !re.MatchString(f.Name()) {

                        t.Errorf("TempFile(`"+dir+"`, `ioutil_test`) created bad name %s", f.Name())

                }

        }

}

func TestTempDir(t *testing.T) {

        name, err := TempDir("/_not_exists_", "foo")

        if name != "" || err == nil {

                t.Errorf("TempDir(`/_not_exists_`, `foo`) = %v, %v", name, err)

        }

        dir := os.TempDir()

        name, err = TempDir(dir, "ioutil_test")

        if name == "" || err != nil {

                t.Errorf("TempDir(dir, `ioutil_test`) = %v, %v", name, err)

        }

        if name != "" {

                os.Remove(name)

                re := regexp.MustCompile("^" + regexp.QuoteMeta(filepath.Join(dir, "ioutil_test")) + "[0-9]+$")

                if !re.MatchString(name) {

                        t.Errorf("TempDir(`"+dir+"`, `ioutil_test`) created bad name %s", name)

                }

        }

}