156 lines
3.6 KiB
Go
156 lines
3.6 KiB
Go
// Copyright 2012 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package os_test
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import (
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"testing"
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)
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func TestErrIsExist(t *testing.T) {
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f, err := ioutil.TempFile("", "_Go_ErrIsExist")
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if err != nil {
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t.Fatalf("open ErrIsExist tempfile: %s", err)
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return
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}
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defer os.Remove(f.Name())
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defer f.Close()
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f2, err := os.OpenFile(f.Name(), os.O_RDWR|os.O_CREATE|os.O_EXCL, 0600)
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if err == nil {
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f2.Close()
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t.Fatal("Open should have failed")
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return
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}
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if s := checkErrorPredicate("os.IsExist", os.IsExist, err); s != "" {
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t.Fatal(s)
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return
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}
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}
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func testErrNotExist(name string) string {
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f, err := os.Open(name)
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if err == nil {
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f.Close()
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return "Open should have failed"
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}
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if s := checkErrorPredicate("os.IsNotExist", os.IsNotExist, err); s != "" {
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return s
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}
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err = os.Chdir(name)
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if err == nil {
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return "Chdir should have failed"
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}
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if s := checkErrorPredicate("os.IsNotExist", os.IsNotExist, err); s != "" {
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return s
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}
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return ""
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}
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func TestErrIsNotExist(t *testing.T) {
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tmpDir, err := ioutil.TempDir("", "_Go_ErrIsNotExist")
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if err != nil {
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t.Fatalf("create ErrIsNotExist tempdir: %s", err)
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return
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}
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defer os.RemoveAll(tmpDir)
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name := filepath.Join(tmpDir, "NotExists")
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if s := testErrNotExist(name); s != "" {
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t.Fatal(s)
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return
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}
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name = filepath.Join(name, "NotExists2")
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if s := testErrNotExist(name); s != "" {
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t.Fatal(s)
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return
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}
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}
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func checkErrorPredicate(predName string, pred func(error) bool, err error) string {
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if !pred(err) {
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return fmt.Sprintf("%s does not work as expected for %#v", predName, err)
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}
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return ""
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}
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type isExistTest struct {
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err error
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is bool
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isnot bool
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}
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var isExistTests = []isExistTest{
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{&os.PathError{Err: os.ErrInvalid}, false, false},
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{&os.PathError{Err: os.ErrPermission}, false, false},
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{&os.PathError{Err: os.ErrExist}, true, false},
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{&os.PathError{Err: os.ErrNotExist}, false, true},
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{&os.LinkError{Err: os.ErrInvalid}, false, false},
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{&os.LinkError{Err: os.ErrPermission}, false, false},
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{&os.LinkError{Err: os.ErrExist}, true, false},
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{&os.LinkError{Err: os.ErrNotExist}, false, true},
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{&os.SyscallError{Err: os.ErrNotExist}, false, true},
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{&os.SyscallError{Err: os.ErrExist}, true, false},
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{nil, false, false},
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}
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func TestIsExist(t *testing.T) {
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for _, tt := range isExistTests {
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if is := os.IsExist(tt.err); is != tt.is {
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t.Errorf("os.IsExist(%T %v) = %v, want %v", tt.err, tt.err, is, tt.is)
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}
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if isnot := os.IsNotExist(tt.err); isnot != tt.isnot {
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t.Errorf("os.IsNotExist(%T %v) = %v, want %v", tt.err, tt.err, isnot, tt.isnot)
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}
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}
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}
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type isPermissionTest struct {
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err error
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want bool
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}
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var isPermissionTests = []isPermissionTest{
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{nil, false},
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{&os.PathError{Err: os.ErrPermission}, true},
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{&os.SyscallError{Err: os.ErrPermission}, true},
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}
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func TestIsPermission(t *testing.T) {
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for _, tt := range isPermissionTests {
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if got := os.IsPermission(tt.err); got != tt.want {
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t.Errorf("os.IsPermission(%#v) = %v; want %v", tt.err, got, tt.want)
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}
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}
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}
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func TestErrPathNUL(t *testing.T) {
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f, err := ioutil.TempFile("", "_Go_ErrPathNUL\x00")
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if err == nil {
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f.Close()
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t.Fatal("TempFile should have failed")
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}
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f, err = ioutil.TempFile("", "_Go_ErrPathNUL")
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if err != nil {
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t.Fatalf("open ErrPathNUL tempfile: %s", err)
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}
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defer os.Remove(f.Name())
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defer f.Close()
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f2, err := os.OpenFile(f.Name(), os.O_RDWR, 0600)
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if err != nil {
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t.Fatalf("open ErrPathNUL: %s", err)
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}
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f2.Close()
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f2, err = os.OpenFile(f.Name()+"\x00", os.O_RDWR, 0600)
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if err == nil {
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f2.Close()
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t.Fatal("Open should have failed")
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}
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}
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