126 lines
3.0 KiB
Go
126 lines
3.0 KiB
Go
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// Copyright (c) 2014-2015 The Notify Authors. All rights reserved.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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// +build !windows
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package notify
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import (
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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 tmpfile(s string) (string, error) {
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f, err := ioutil.TempFile(filepath.Split(s))
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if err != nil {
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return "", err
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}
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if err = nonil(f.Sync(), f.Close()); err != nil {
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return "", err
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}
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return f.Name(), nil
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}
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func symlink(src, dst string) (string, error) {
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name, err := tmpfile(dst)
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if err != nil {
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return "", err
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}
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if err = nonil(os.Remove(name), os.Symlink(src, name)); err != nil {
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return "", err
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}
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return name, nil
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}
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func removeall(s ...string) {
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for _, s := range s {
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os.Remove(s)
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}
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}
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func TestCanonical(t *testing.T) {
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wd, err := os.Getwd()
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if err != nil {
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t.Fatalf("os.Getwd()=%v", err)
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}
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wdsym, err := symlink(wd, "")
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if err != nil {
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t.Fatalf(`symlink(%q, "")=%v`, wd, err)
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}
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td := filepath.Join(wd, "testdata")
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tdsym, err := symlink(td, td)
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if err != nil {
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t.Errorf("symlink(%q, %q)=%v", td, td, nonil(err, os.Remove(wdsym)))
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}
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defer removeall(wdsym, tdsym)
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vfstxt := filepath.Join(td, "vfs.txt")
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cases := [...]caseCanonical{
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{wdsym, wd},
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{tdsym, td},
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{filepath.Join(wdsym, "notify.go"), filepath.Join(wd, "notify.go")},
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{filepath.Join(tdsym, "vfs.txt"), vfstxt},
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{filepath.Join(wdsym, filepath.Base(tdsym), "vfs.txt"), vfstxt},
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}
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testCanonical(t, cases[:])
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}
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func TestCanonicalCircular(t *testing.T) {
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tmp1, err := tmpfile("circular")
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if err != nil {
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t.Fatal(err)
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}
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tmp2, err := tmpfile("circular")
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if err != nil {
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t.Fatal(nonil(err, os.Remove(tmp1)))
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}
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defer removeall(tmp1, tmp2)
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// Symlink tmp1 -> tmp2.
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if err = nonil(os.Remove(tmp1), os.Symlink(tmp2, tmp1)); err != nil {
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t.Fatal(err)
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}
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// Symlnik tmp2 -> tmp1.
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if err = nonil(os.Remove(tmp2), os.Symlink(tmp1, tmp2)); err != nil {
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t.Fatal(err)
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}
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if _, err = canonical(tmp1); err == nil {
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t.Fatalf("want canonical(%q)!=nil", tmp1)
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}
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if _, ok := err.(*os.PathError); !ok {
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t.Fatalf("want canonical(%q)=os.PathError; got %T", tmp1, err)
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}
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}
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// issue #83
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func TestCanonical_RelativeSymlink(t *testing.T) {
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dir, err := ioutil.TempDir(wd, "")
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if err != nil {
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t.Fatalf("TempDir()=%v", err)
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}
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var (
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path = filepath.Join(dir, filepath.FromSlash("a/b/c/d/e/f"))
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realpath = filepath.Join(dir, filepath.FromSlash("a/b/x/y/z/d/e/f"))
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rel = filepath.FromSlash("x/y/z/../z/../z")
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chdir = filepath.Join(dir, filepath.FromSlash("a/b"))
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)
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defer os.RemoveAll(dir)
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if err = os.MkdirAll(realpath, 0755); err != nil {
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t.Fatalf("MkdirAll()=%v", err)
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}
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if err := os.Chdir(chdir); err != nil {
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t.Fatalf("Chdir()=%v", err)
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}
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if err := nonil(os.Symlink(rel, "c"), os.Chdir(wd)); err != nil {
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t.Fatalf("Symlink()=%v", err)
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}
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got, err := canonical(path)
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if err != nil {
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t.Fatalf("canonical(%s)=%v", path, err)
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}
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if got != realpath {
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t.Fatalf("want canonical()=%s; got %s", realpath, got)
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}
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}
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