103 lines
3.0 KiB
Go
103 lines
3.0 KiB
Go
|
// Copyright ©2018 Steve Francia <spf@spf13.com>
|
||
|
|
//
|
||
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
// you may not use this file except in compliance with the License.
|
||
|
|
// You may obtain a copy of the License at
|
||
|
|
//
|
||
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
//
|
||
|
|
// Unless required by applicable law or agreed to in writing, software
|
||
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
// See the License for the specific language governing permissions and
|
||
|
|
// limitations under the License.
|
||
|
|
|
||
|
|
package afero
|
||
|
|
|
||
|
|
import (
|
||
|
|
"os"
|
||
|
|
"path/filepath"
|
||
|
|
"testing"
|
||
|
|
)
|
||
|
|
|
||
|
|
func TestLstatIfPossible(t *testing.T) {
|
||
|
|
wd, _ := os.Getwd()
|
||
|
|
defer func() {
|
||
|
|
os.Chdir(wd)
|
||
|
|
}()
|
||
|
|
|
||
|
|
osFs := &OsFs{}
|
||
|
|
|
||
|
|
workDir, err := TempDir(osFs, "", "afero-lstate")
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
|
||
|
|
defer func() {
|
||
|
|
osFs.RemoveAll(workDir)
|
||
|
|
}()
|
||
|
|
|
||
|
|
memWorkDir := "/lstate"
|
||
|
|
|
||
|
|
memFs := NewMemMapFs()
|
||
|
|
overlayFs1 := &CopyOnWriteFs{base: osFs, layer: memFs}
|
||
|
|
overlayFs2 := &CopyOnWriteFs{base: memFs, layer: osFs}
|
||
|
|
overlayFsMemOnly := &CopyOnWriteFs{base: memFs, layer: NewMemMapFs()}
|
||
|
|
basePathFs := &BasePathFs{source: osFs, path: workDir}
|
||
|
|
basePathFsMem := &BasePathFs{source: memFs, path: memWorkDir}
|
||
|
|
roFs := &ReadOnlyFs{source: osFs}
|
||
|
|
roFsMem := &ReadOnlyFs{source: memFs}
|
||
|
|
|
||
|
|
pathFileMem := filepath.Join(memWorkDir, "aferom.txt")
|
||
|
|
|
||
|
|
WriteFile(osFs, filepath.Join(workDir, "afero.txt"), []byte("Hi, Afero!"), 0777)
|
||
|
|
WriteFile(memFs, filepath.Join(pathFileMem), []byte("Hi, Afero!"), 0777)
|
||
|
|
|
||
|
|
os.Chdir(workDir)
|
||
|
|
if err := os.Symlink("afero.txt", "symafero.txt"); err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
|
||
|
|
pathFile := filepath.Join(workDir, "afero.txt")
|
||
|
|
pathSymlink := filepath.Join(workDir, "symafero.txt")
|
||
|
|
|
||
|
|
checkLstat := func(l Lstater, name string, shouldLstat bool) os.FileInfo {
|
||
|
|
statFile, isLstat, err := l.LstatIfPossible(name)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Lstat check failed: %s", err)
|
||
|
|
}
|
||
|
|
if isLstat != shouldLstat {
|
||
|
|
t.Fatalf("Lstat status was %t for %s", isLstat, name)
|
||
|
|
}
|
||
|
|
return statFile
|
||
|
|
}
|
||
|
|
|
||
|
|
testLstat := func(l Lstater, pathFile, pathSymlink string) {
|
||
|
|
shouldLstat := pathSymlink != ""
|
||
|
|
statRegular := checkLstat(l, pathFile, shouldLstat)
|
||
|
|
statSymlink := checkLstat(l, pathSymlink, shouldLstat)
|
||
|
|
if statRegular == nil || statSymlink == nil {
|
||
|
|
t.Fatal("got nil FileInfo")
|
||
|
|
}
|
||
|
|
|
||
|
|
symSym := statSymlink.Mode()&os.ModeSymlink == os.ModeSymlink
|
||
|
|
if symSym == (pathSymlink == "") {
|
||
|
|
t.Fatal("expected the FileInfo to describe the symlink")
|
||
|
|
}
|
||
|
|
|
||
|
|
_, _, err := l.LstatIfPossible("this-should-not-exist.txt")
|
||
|
|
if err == nil || !os.IsNotExist(err) {
|
||
|
|
t.Fatalf("expected file to not exist, got %s", err)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
testLstat(osFs, pathFile, pathSymlink)
|
||
|
|
testLstat(overlayFs1, pathFile, pathSymlink)
|
||
|
|
testLstat(overlayFs2, pathFile, pathSymlink)
|
||
|
|
testLstat(basePathFs, "afero.txt", "symafero.txt")
|
||
|
|
testLstat(overlayFsMemOnly, pathFileMem, "")
|
||
|
|
testLstat(basePathFsMem, "aferom.txt", "")
|
||
|
|
testLstat(roFs, pathFile, pathSymlink)
|
||
|
|
testLstat(roFsMem, pathFileMem, "")
|
||
|
|
}
|