syncthing/lib/osutil/traversessymlink_test.go
2017-08-19 14:36:56 +00:00

78 lines
1.7 KiB
Go

// Copyright (C) 2016 The Syncthing Authors.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at https://mozilla.org/MPL/2.0/.
// +build !windows
package osutil_test
import (
"os"
"testing"
"github.com/syncthing/syncthing/lib/fs"
"github.com/syncthing/syncthing/lib/osutil"
)
func TestTraversesSymlink(t *testing.T) {
os.RemoveAll("testdata")
defer os.RemoveAll("testdata")
fs := fs.NewFilesystem(fs.FilesystemTypeBasic, "testdata")
fs.MkdirAll("a/b/c", 0755)
fs.CreateSymlink("b", "a/l")
// a/l -> b, so a/l/c should resolve by normal stat
info, err := fs.Lstat("a/l/c")
if err != nil {
t.Fatal("unexpected error", err)
}
if !info.IsDir() {
t.Fatal("error in setup, a/l/c should be a directory")
}
cases := []struct {
name string
traverses bool
}{
// Exist
{".", false},
{"a", false},
{"a/b", false},
{"a/b/c", false},
// Don't exist
{"x", false},
{"a/x", false},
{"a/b/x", false},
{"a/x/c", false},
// Symlink or behind symlink
{"a/l", true},
{"a/l/c", true},
// Non-existing behind a symlink
{"a/l/x", true},
}
for _, tc := range cases {
if res := osutil.TraversesSymlink(fs, tc.name); tc.traverses == (res == nil) {
t.Errorf("TraversesSymlink(%q) = %v, should be %v", tc.name, res, tc.traverses)
}
}
}
var traversesSymlinkResult error
func BenchmarkTraversesSymlink(b *testing.B) {
os.RemoveAll("testdata")
defer os.RemoveAll("testdata")
fs := fs.NewFilesystem(fs.FilesystemTypeBasic, "testdata")
fs.MkdirAll("a/b/c", 0755)
for i := 0; i < b.N; i++ {
traversesSymlinkResult = osutil.TraversesSymlink(fs, "a/b/c")
}
b.ReportAllocs()
}