github.com/varialus/godfly@v0.0.0-20130904042352-1934f9f095ab/src/pkg/os/error_windows_test.go (about)

     1  // Copyright 2012 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 os_test
     6  
     7  import (
     8  	"io/ioutil"
     9  	"os"
    10  	"path/filepath"
    11  	"testing"
    12  )
    13  
    14  func TestErrIsExistAfterRename(t *testing.T) {
    15  	dir, err := ioutil.TempDir("", "go-build")
    16  	if err != nil {
    17  		t.Fatalf("Create temp directory: %v", err)
    18  	}
    19  	defer os.RemoveAll(dir)
    20  
    21  	src := filepath.Join(dir, "src")
    22  	dest := filepath.Join(dir, "dest")
    23  
    24  	f, err := os.Create(src)
    25  	if err != nil {
    26  		t.Fatalf("Create file %v: %v", src, err)
    27  	}
    28  	f.Close()
    29  	err = os.Rename(src, dest)
    30  	if err != nil {
    31  		t.Fatalf("Rename %v to %v: %v", src, dest, err)
    32  	}
    33  
    34  	f, err = os.Create(src)
    35  	if err != nil {
    36  		t.Fatalf("Create file %v: %v", src, err)
    37  	}
    38  	f.Close()
    39  	err = os.Rename(src, dest)
    40  	if err == nil {
    41  		t.Fatal("Rename should have failed")
    42  	}
    43  	if s := checkErrorPredicate("os.IsExist", os.IsExist, err); s != "" {
    44  		t.Fatal(s)
    45  		return
    46  	}
    47  }