forked from mirror/afero
779 lines
17 KiB
Go
779 lines
17 KiB
Go
package afero
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import (
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"fmt"
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"io"
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"io/fs"
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"os"
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"path/filepath"
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"runtime"
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"strings"
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"sync"
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"testing"
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"time"
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)
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func TestNormalizePath(t *testing.T) {
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type test struct {
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input string
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expected string
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}
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data := []test{
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{".", FilePathSeparator},
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{"./", FilePathSeparator},
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{"..", FilePathSeparator},
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{"../", FilePathSeparator},
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{"./..", FilePathSeparator},
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{"./../", FilePathSeparator},
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}
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for i, d := range data {
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cpath := normalizePath(d.input)
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if d.expected != cpath {
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t.Errorf("Test %d failed. Expected %q got %q", i, d.expected, cpath)
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}
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}
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}
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func TestPathErrors(t *testing.T) {
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path := filepath.Join(".", "some", "path")
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path2 := filepath.Join(".", "different", "path")
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fs := NewMemMapFs()
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perm := os.FileMode(0755)
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uid := 1000
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gid := 1000
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// relevant functions:
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// func (m *MemMapFs) Chmod(name string, mode os.FileMode) error
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// func (m *MemMapFs) Chtimes(name string, atime time.Time, mtime time.Time) error
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// func (m *MemMapFs) Create(name string) (File, error)
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// func (m *MemMapFs) Mkdir(name string, perm os.FileMode) error
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// func (m *MemMapFs) MkdirAll(path string, perm os.FileMode) error
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// func (m *MemMapFs) Open(name string) (File, error)
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// func (m *MemMapFs) OpenFile(name string, flag int, perm os.FileMode) (File, error)
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// func (m *MemMapFs) Remove(name string) error
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// func (m *MemMapFs) Rename(oldname, newname string) error
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// func (m *MemMapFs) Stat(name string) (os.FileInfo, error)
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err := fs.Chmod(path, perm)
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checkPathError(t, err, "Chmod")
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err = fs.Chown(path, uid, gid)
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checkPathError(t, err, "Chown")
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err = fs.Chtimes(path, time.Now(), time.Now())
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checkPathError(t, err, "Chtimes")
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// fs.Create doesn't return an error
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err = fs.Mkdir(path2, perm)
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if err != nil {
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t.Error(err)
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}
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err = fs.Mkdir(path2, perm)
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checkPathError(t, err, "Mkdir")
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err = fs.MkdirAll(path2, perm)
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if err != nil {
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t.Error("MkdirAll:", err)
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}
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_, err = fs.Open(path)
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checkPathError(t, err, "Open")
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_, err = fs.OpenFile(path, os.O_RDWR, perm)
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checkPathError(t, err, "OpenFile")
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err = fs.Remove(path)
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checkPathError(t, err, "Remove")
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err = fs.RemoveAll(path)
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if err != nil {
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t.Error("RemoveAll:", err)
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}
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err = fs.Rename(path, path2)
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checkPathError(t, err, "Rename")
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_, err = fs.Stat(path)
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checkPathError(t, err, "Stat")
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}
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func checkPathError(t *testing.T, err error, op string) {
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pathErr, ok := err.(*os.PathError)
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if !ok {
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t.Error(op+":", err, "is not a os.PathError")
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return
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}
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_, ok = pathErr.Err.(*os.PathError)
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if ok {
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t.Error(op+":", err, "contains another os.PathError")
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}
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}
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// Ensure os.O_EXCL is correctly handled.
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func TestOpenFileExcl(t *testing.T) {
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const fileName = "/myFileTest"
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const fileMode = os.FileMode(0765)
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fs := NewMemMapFs()
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// First creation should succeed.
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f, err := fs.OpenFile(fileName, os.O_CREATE|os.O_EXCL, fileMode)
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if err != nil {
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t.Errorf("OpenFile Create Excl failed: %s", err)
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return
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}
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f.Close()
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// Second creation should fail.
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_, err = fs.OpenFile(fileName, os.O_CREATE|os.O_EXCL, fileMode)
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if err == nil {
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t.Errorf("OpenFile Create Excl should have failed, but it didn't")
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}
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checkPathError(t, err, "Open")
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}
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// Ensure Permissions are set on OpenFile/Mkdir/MkdirAll
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func TestPermSet(t *testing.T) {
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const fileName = "/myFileTest"
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const dirPath = "/myDirTest"
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const dirPathAll = "/my/path/to/dir"
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const fileMode = os.FileMode(0765)
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// directories will also have the directory bit set
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const dirMode = fileMode | os.ModeDir
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fs := NewMemMapFs()
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// Test Openfile
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f, err := fs.OpenFile(fileName, os.O_CREATE, fileMode)
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if err != nil {
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t.Errorf("OpenFile Create failed: %s", err)
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return
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}
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f.Close()
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s, err := fs.Stat(fileName)
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if err != nil {
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t.Errorf("Stat failed: %s", err)
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return
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}
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if s.Mode().String() != fileMode.String() {
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t.Errorf("Permissions Incorrect: %s != %s", s.Mode().String(), fileMode.String())
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return
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}
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// Test Mkdir
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err = fs.Mkdir(dirPath, dirMode)
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if err != nil {
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t.Errorf("MkDir Create failed: %s", err)
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return
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}
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s, err = fs.Stat(dirPath)
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if err != nil {
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t.Errorf("Stat failed: %s", err)
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return
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}
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// sets File
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if s.Mode().String() != dirMode.String() {
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t.Errorf("Permissions Incorrect: %s != %s", s.Mode().String(), dirMode.String())
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return
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}
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// Test MkdirAll
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err = fs.MkdirAll(dirPathAll, dirMode)
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if err != nil {
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t.Errorf("MkDir Create failed: %s", err)
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return
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}
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s, err = fs.Stat(dirPathAll)
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if err != nil {
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t.Errorf("Stat failed: %s", err)
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return
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}
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if s.Mode().String() != dirMode.String() {
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t.Errorf("Permissions Incorrect: %s != %s", s.Mode().String(), dirMode.String())
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return
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}
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}
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// Fails if multiple file objects use the same file.at counter in MemMapFs
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func TestMultipleOpenFiles(t *testing.T) {
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defer removeAllTestFiles(t)
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const fileName = "afero-demo2.txt"
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var data = make([][]byte, len(Fss))
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for i, fs := range Fss {
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dir := testDir(fs)
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path := filepath.Join(dir, fileName)
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fh1, err := fs.Create(path)
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if err != nil {
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t.Error("fs.Create failed: " + err.Error())
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}
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_, err = fh1.Write([]byte("test"))
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if err != nil {
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t.Error("fh.Write failed: " + err.Error())
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}
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_, err = fh1.Seek(0, io.SeekStart)
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if err != nil {
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t.Error(err)
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}
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fh2, err := fs.OpenFile(path, os.O_RDWR, 0777)
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if err != nil {
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t.Error("fs.OpenFile failed: " + err.Error())
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}
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_, err = fh2.Seek(0, os.SEEK_END)
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if err != nil {
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t.Error(err)
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}
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_, err = fh2.Write([]byte("data"))
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if err != nil {
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t.Error(err)
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}
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err = fh2.Close()
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if err != nil {
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t.Error(err)
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}
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_, err = fh1.Write([]byte("data"))
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if err != nil {
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t.Error(err)
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}
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err = fh1.Close()
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if err != nil {
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t.Error(err)
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}
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// the file now should contain "datadata"
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data[i], err = ReadFile(fs, path)
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if err != nil {
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t.Error(err)
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}
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}
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for i, fs := range Fss {
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if i == 0 {
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continue
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}
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if string(data[0]) != string(data[i]) {
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t.Errorf("%s and %s don't behave the same\n"+
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"%s: \"%s\"\n%s: \"%s\"\n",
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Fss[0].Name(), fs.Name(), Fss[0].Name(), data[0], fs.Name(), data[i])
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}
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}
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}
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// Test if file.Write() fails when opened as read only
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func TestReadOnly(t *testing.T) {
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defer removeAllTestFiles(t)
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const fileName = "afero-demo.txt"
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for _, fs := range Fss {
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dir := testDir(fs)
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path := filepath.Join(dir, fileName)
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f, err := fs.Create(path)
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if err != nil {
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t.Error(fs.Name()+":", "fs.Create failed: "+err.Error())
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}
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_, err = f.Write([]byte("test"))
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if err != nil {
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t.Error(fs.Name()+":", "Write failed: "+err.Error())
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}
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f.Close()
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f, err = fs.Open(path)
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if err != nil {
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t.Error("fs.Open failed: " + err.Error())
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}
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_, err = f.Write([]byte("data"))
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if err == nil {
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t.Error(fs.Name()+":", "No write error")
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}
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f.Close()
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f, err = fs.OpenFile(path, os.O_RDONLY, 0644)
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if err != nil {
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t.Error("fs.Open failed: " + err.Error())
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}
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_, err = f.Write([]byte("data"))
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if err == nil {
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t.Error(fs.Name()+":", "No write error")
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}
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f.Close()
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}
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}
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func TestWriteCloseTime(t *testing.T) {
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defer removeAllTestFiles(t)
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const fileName = "afero-demo.txt"
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for _, fs := range Fss {
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dir := testDir(fs)
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path := filepath.Join(dir, fileName)
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f, err := fs.Create(path)
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if err != nil {
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t.Error(fs.Name()+":", "fs.Create failed: "+err.Error())
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}
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f.Close()
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f, err = fs.Create(path)
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if err != nil {
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t.Error(fs.Name()+":", "fs.Create failed: "+err.Error())
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}
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fi, err := f.Stat()
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if err != nil {
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t.Error(fs.Name()+":", "Stat failed: "+err.Error())
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}
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timeBefore := fi.ModTime()
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// sorry for the delay, but we have to make sure time advances,
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// also on non Un*x systems...
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switch runtime.GOOS {
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case "windows":
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time.Sleep(2 * time.Second)
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case "darwin":
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time.Sleep(1 * time.Second)
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default: // depending on the FS, this may work with < 1 second, on my old ext3 it does not
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time.Sleep(1 * time.Second)
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}
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_, err = f.Write([]byte("test"))
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if err != nil {
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t.Error(fs.Name()+":", "Write failed: "+err.Error())
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}
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f.Close()
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fi, err = fs.Stat(path)
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if err != nil {
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t.Error(fs.Name()+":", "fs.Stat failed: "+err.Error())
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}
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if fi.ModTime().Equal(timeBefore) {
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t.Error(fs.Name()+":", "ModTime was not set on Close()")
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}
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}
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}
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// This test should be run with the race detector on:
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// go test -race -v -timeout 10s -run TestRacingDeleteAndClose
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func TestRacingDeleteAndClose(t *testing.T) {
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fs := NewMemMapFs()
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pathname := "testfile"
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f, err := fs.Create(pathname)
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if err != nil {
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t.Fatal(err)
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}
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in := make(chan bool)
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go func() {
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<-in
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f.Close()
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}()
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go func() {
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<-in
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fs.Remove(pathname)
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}()
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close(in)
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}
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// This test should be run with the race detector on:
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// go test -run TestMemFsDataRace -race
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func TestMemFsDataRace(t *testing.T) {
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const dir = "test_dir"
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fs := NewMemMapFs()
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if err := fs.MkdirAll(dir, 0777); err != nil {
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t.Fatal(err)
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}
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const n = 1000
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done := make(chan struct{})
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go func() {
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defer close(done)
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for i := 0; i < n; i++ {
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fname := filepath.Join(dir, fmt.Sprintf("%d.txt", i))
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if err := WriteFile(fs, fname, []byte(""), 0777); err != nil {
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panic(err)
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}
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if err := fs.Remove(fname); err != nil {
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panic(err)
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}
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}
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}()
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loop:
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for {
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select {
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case <-done:
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break loop
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default:
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_, err := ReadDir(fs, dir)
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if err != nil {
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t.Fatal(err)
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}
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}
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}
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}
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// root is a directory
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func TestMemFsRootDirMode(t *testing.T) {
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t.Parallel()
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fs := NewMemMapFs()
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info, err := fs.Stat("/")
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if err != nil {
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t.Fatal(err)
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}
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if !info.IsDir() {
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t.Error("should be a directory")
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}
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if !info.Mode().IsDir() {
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t.Errorf("FileMode is not directory, is %s", info.Mode().String())
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}
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}
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// MkdirAll creates intermediate directories with correct mode
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func TestMemFsMkdirAllMode(t *testing.T) {
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t.Parallel()
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fs := NewMemMapFs()
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err := fs.MkdirAll("/a/b/c", 0755)
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if err != nil {
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t.Fatal(err)
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}
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info, err := fs.Stat("/a")
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if err != nil {
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t.Fatal(err)
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}
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if !info.Mode().IsDir() {
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t.Error("/a: mode is not directory")
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}
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if !info.ModTime().After(time.Now().Add(-1 * time.Hour)) {
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t.Errorf("/a: mod time not set, got %s", info.ModTime())
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}
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if info.Mode() != os.FileMode(os.ModeDir|0755) {
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t.Errorf("/a: wrong permissions, expected drwxr-xr-x, got %s", info.Mode())
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}
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info, err = fs.Stat("/a/b")
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if err != nil {
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t.Fatal(err)
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}
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if !info.Mode().IsDir() {
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t.Error("/a/b: mode is not directory")
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}
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if info.Mode() != os.FileMode(os.ModeDir|0755) {
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t.Errorf("/a/b: wrong permissions, expected drwxr-xr-x, got %s", info.Mode())
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}
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if !info.ModTime().After(time.Now().Add(-1 * time.Hour)) {
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t.Errorf("/a/b: mod time not set, got %s", info.ModTime())
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}
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info, err = fs.Stat("/a/b/c")
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if err != nil {
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t.Fatal(err)
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}
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if !info.Mode().IsDir() {
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t.Error("/a/b/c: mode is not directory")
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}
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if info.Mode() != os.FileMode(os.ModeDir|0755) {
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t.Errorf("/a/b/c: wrong permissions, expected drwxr-xr-x, got %s", info.Mode())
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}
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if !info.ModTime().After(time.Now().Add(-1 * time.Hour)) {
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t.Errorf("/a/b/c: mod time not set, got %s", info.ModTime())
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}
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}
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// MkdirAll does not change permissions of already-existing directories
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func TestMemFsMkdirAllNoClobber(t *testing.T) {
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t.Parallel()
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fs := NewMemMapFs()
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err := fs.MkdirAll("/a/b/c", 0755)
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if err != nil {
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t.Fatal(err)
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}
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info, err := fs.Stat("/a/b")
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if err != nil {
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t.Fatal(err)
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}
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if info.Mode() != os.FileMode(os.ModeDir|0755) {
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t.Errorf("/a/b: wrong permissions, expected drwxr-xr-x, got %s", info.Mode())
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}
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err = fs.MkdirAll("/a/b/c/d/e/f", 0710)
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// '/a/b' is unchanged
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if err != nil {
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t.Fatal(err)
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}
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info, err = fs.Stat("/a/b")
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if err != nil {
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t.Fatal(err)
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}
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if info.Mode() != os.FileMode(os.ModeDir|0755) {
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t.Errorf("/a/b: wrong permissions, expected drwxr-xr-x, got %s", info.Mode())
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}
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// new directories created with proper permissions
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info, err = fs.Stat("/a/b/c/d")
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if err != nil {
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t.Fatal(err)
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}
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if info.Mode() != os.FileMode(os.ModeDir|0710) {
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t.Errorf("/a/b/c/d: wrong permissions, expected drwx--x---, got %s", info.Mode())
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}
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info, err = fs.Stat("/a/b/c/d/e")
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if err != nil {
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t.Fatal(err)
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}
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if info.Mode() != os.FileMode(os.ModeDir|0710) {
|
|
t.Errorf("/a/b/c/d/e: wrong permissions, expected drwx--x---, got %s", info.Mode())
|
|
}
|
|
info, err = fs.Stat("/a/b/c/d/e/f")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if info.Mode() != os.FileMode(os.ModeDir|0710) {
|
|
t.Errorf("/a/b/c/d/e/f: wrong permissions, expected drwx--x---, got %s", info.Mode())
|
|
}
|
|
}
|
|
|
|
func TestMemFsDirMode(t *testing.T) {
|
|
fs := NewMemMapFs()
|
|
err := fs.Mkdir("/testDir1", 0644)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
err = fs.MkdirAll("/sub/testDir2", 0644)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
info, err := fs.Stat("/testDir1")
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
if !info.IsDir() {
|
|
t.Error("should be a directory")
|
|
}
|
|
if !info.Mode().IsDir() {
|
|
t.Error("FileMode is not directory")
|
|
}
|
|
info, err = fs.Stat("/sub/testDir2")
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
if !info.IsDir() {
|
|
t.Error("should be a directory")
|
|
}
|
|
if !info.Mode().IsDir() {
|
|
t.Error("FileMode is not directory")
|
|
}
|
|
}
|
|
|
|
func TestMemFsUnexpectedEOF(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
fs := NewMemMapFs()
|
|
|
|
if err := WriteFile(fs, "file.txt", []byte("abc"), 0777); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
f, err := fs.Open("file.txt")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer f.Close()
|
|
|
|
// Seek beyond the end.
|
|
_, err = f.Seek(512, 0)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
buff := make([]byte, 256)
|
|
_, err = io.ReadAtLeast(f, buff, 256)
|
|
|
|
if err != io.ErrUnexpectedEOF {
|
|
t.Fatal("Expected ErrUnexpectedEOF")
|
|
}
|
|
}
|
|
|
|
func TestMemFsChmod(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
fs := NewMemMapFs()
|
|
const file = "hello"
|
|
if err := fs.Mkdir(file, 0700); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
info, err := fs.Stat(file)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if info.Mode().String() != "drwx------" {
|
|
t.Fatal("mkdir failed to create a directory: mode =", info.Mode())
|
|
}
|
|
|
|
err = fs.Chmod(file, 0)
|
|
if err != nil {
|
|
t.Error("Failed to run chmod:", err)
|
|
}
|
|
|
|
info, err = fs.Stat(file)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if info.Mode().String() != "d---------" {
|
|
t.Error("chmod should not change file type. New mode =", info.Mode())
|
|
}
|
|
}
|
|
|
|
// can't use Mkdir to get around which permissions we're allowed to set
|
|
func TestMemFsMkdirModeIllegal(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
fs := NewMemMapFs()
|
|
err := fs.Mkdir("/a", os.ModeSocket|0755)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
info, err := fs.Stat("/a")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if info.Mode() != os.FileMode(os.ModeDir|0755) {
|
|
t.Fatalf("should not be able to use Mkdir to set illegal mode: %s", info.Mode().String())
|
|
}
|
|
}
|
|
|
|
// can't use OpenFile to get around which permissions we're allowed to set
|
|
func TestMemFsOpenFileModeIllegal(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
fs := NewMemMapFs()
|
|
file, err := fs.OpenFile("/a", os.O_CREATE, os.ModeSymlink|0644)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer file.Close()
|
|
info, err := fs.Stat("/a")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if info.Mode() != os.FileMode(0644) {
|
|
t.Fatalf("should not be able to use OpenFile to set illegal mode: %s", info.Mode().String())
|
|
}
|
|
}
|
|
|
|
// LstatIfPossible should always return false, since MemMapFs does not
|
|
// support symlinks.
|
|
func TestMemFsLstatIfPossible(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
fs := NewMemMapFs()
|
|
|
|
// We assert that fs implements Lstater
|
|
fsAsserted, ok := fs.(Lstater)
|
|
if !ok {
|
|
t.Fatalf("The filesytem does not implement Lstater")
|
|
}
|
|
|
|
file, err := fs.OpenFile("/a.txt", os.O_CREATE, 0o644)
|
|
if err != nil {
|
|
t.Fatalf("Error when opening file: %v", err)
|
|
}
|
|
defer file.Close()
|
|
|
|
_, lstatCalled, err := fsAsserted.LstatIfPossible("/a.txt")
|
|
if err != nil {
|
|
t.Fatalf("Function returned err: %v", err)
|
|
}
|
|
if lstatCalled {
|
|
t.Fatalf("Function indicated lstat was called. This should never be true.")
|
|
}
|
|
}
|
|
|
|
func TestMemMapFsConfurrentMkdir(t *testing.T) {
|
|
const dir = "test_dir"
|
|
const n = 1000
|
|
mfs := NewMemMapFs().(*MemMapFs)
|
|
|
|
allFilePaths := make([]string, 0, n)
|
|
|
|
// run concurrency test
|
|
var wg sync.WaitGroup
|
|
for i := 0; i < n; i++ {
|
|
fp := filepath.Join(
|
|
dir,
|
|
fmt.Sprintf("%02d", n%10),
|
|
fmt.Sprintf("%d.txt", i),
|
|
)
|
|
allFilePaths = append(allFilePaths, fp)
|
|
|
|
wg.Add(1)
|
|
go func() {
|
|
defer wg.Done()
|
|
|
|
if err := mfs.MkdirAll(filepath.Dir(fp), 0755); err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
wt, err := mfs.Create(fp)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
defer func() {
|
|
if err := wt.Close(); err != nil {
|
|
t.Error(err)
|
|
}
|
|
}()
|
|
|
|
// write 30 bytes
|
|
for j := 0; j < 10; j++ {
|
|
_, err := wt.Write([]byte("000"))
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
wg.Wait()
|
|
|
|
// Test1: find all files by full path access
|
|
for _, fp := range allFilePaths {
|
|
info, err := mfs.Stat(fp)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
if info.Size() != 30 {
|
|
t.Errorf("file size should be 30, but got %d", info.Size())
|
|
}
|
|
|
|
}
|
|
|
|
// Test2: find all files by walk
|
|
foundFiles := make([]string, 0, n)
|
|
wErr := Walk(mfs, dir, func(path string, info fs.FileInfo, err error) error {
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
if info.IsDir() {
|
|
return nil // skip dir
|
|
}
|
|
if strings.HasSuffix(info.Name(), ".txt") {
|
|
foundFiles = append(foundFiles, path)
|
|
}
|
|
return nil
|
|
})
|
|
if wErr != nil {
|
|
t.Error(wErr)
|
|
}
|
|
if len(foundFiles) != n {
|
|
t.Errorf("found %d files, but expect %d", len(foundFiles), n)
|
|
}
|
|
}
|