mirror of https://github.com/restic/restic.git
446 lines
8.4 KiB
Go
446 lines
8.4 KiB
Go
package fs
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import (
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"bytes"
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"io"
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"os"
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"path"
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"sort"
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"strings"
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"testing"
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"time"
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"github.com/google/go-cmp/cmp"
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"github.com/restic/restic/internal/test"
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)
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func verifyFileContentOpen(t testing.TB, fs FS, filename string, want []byte) {
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f, err := fs.Open(filename)
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if err != nil {
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t.Fatal(err)
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}
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buf, err := io.ReadAll(f)
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if err != nil {
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t.Fatal(err)
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}
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err = f.Close()
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if err != nil {
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t.Fatal(err)
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}
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if !cmp.Equal(want, buf) {
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t.Error(cmp.Diff(want, buf))
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}
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}
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func verifyFileContentOpenFile(t testing.TB, fs FS, filename string, want []byte) {
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f, err := fs.OpenFile(filename, O_RDONLY, 0)
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if err != nil {
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t.Fatal(err)
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}
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buf, err := io.ReadAll(f)
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if err != nil {
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t.Fatal(err)
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}
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err = f.Close()
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if err != nil {
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t.Fatal(err)
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}
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if !cmp.Equal(want, buf) {
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t.Error(cmp.Diff(want, buf))
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}
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}
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func verifyDirectoryContents(t testing.TB, fs FS, dir string, want []string) {
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f, err := fs.Open(dir)
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if err != nil {
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t.Fatal(err)
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}
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entries, err := f.Readdirnames(-1)
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if err != nil {
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t.Fatal(err)
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}
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err = f.Close()
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if err != nil {
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t.Fatal(err)
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}
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sort.Strings(want)
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sort.Strings(entries)
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if !cmp.Equal(want, entries) {
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t.Error(cmp.Diff(want, entries))
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}
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}
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type fiSlice []os.FileInfo
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func (s fiSlice) Len() int {
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return len(s)
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}
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func (s fiSlice) Less(i, j int) bool {
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return s[i].Name() < s[j].Name()
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}
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func (s fiSlice) Swap(i, j int) {
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s[i], s[j] = s[j], s[i]
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}
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func verifyDirectoryContentsFI(t testing.TB, fs FS, dir string, want []os.FileInfo) {
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f, err := fs.Open(dir)
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if err != nil {
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t.Fatal(err)
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}
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entries, err := f.Readdir(-1)
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if err != nil {
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t.Fatal(err)
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}
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err = f.Close()
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if err != nil {
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t.Fatal(err)
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}
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sort.Sort(fiSlice(want))
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sort.Sort(fiSlice(entries))
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if len(want) != len(entries) {
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t.Errorf("wrong number of entries returned, want %d, got %d", len(want), len(entries))
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}
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max := len(want)
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if len(entries) < max {
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max = len(entries)
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}
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for i := 0; i < max; i++ {
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fi1 := want[i]
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fi2 := entries[i]
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if fi1.Name() != fi2.Name() {
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t.Errorf("entry %d: wrong value for Name: want %q, got %q", i, fi1.Name(), fi2.Name())
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}
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if fi1.IsDir() != fi2.IsDir() {
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t.Errorf("entry %d: wrong value for IsDir: want %v, got %v", i, fi1.IsDir(), fi2.IsDir())
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}
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if fi1.Mode() != fi2.Mode() {
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t.Errorf("entry %d: wrong value for Mode: want %v, got %v", i, fi1.Mode(), fi2.Mode())
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}
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if fi1.ModTime() != fi2.ModTime() {
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t.Errorf("entry %d: wrong value for ModTime: want %v, got %v", i, fi1.ModTime(), fi2.ModTime())
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}
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if fi1.Size() != fi2.Size() {
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t.Errorf("entry %d: wrong value for Size: want %v, got %v", i, fi1.Size(), fi2.Size())
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}
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if fi1.Sys() != fi2.Sys() {
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t.Errorf("entry %d: wrong value for Sys: want %v, got %v", i, fi1.Sys(), fi2.Sys())
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}
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}
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}
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func checkFileInfo(t testing.TB, fi os.FileInfo, filename string, modtime time.Time, mode os.FileMode, isdir bool) {
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if fi.IsDir() != isdir {
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t.Errorf("IsDir returned %t, want %t", fi.IsDir(), isdir)
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}
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if fi.Mode() != mode {
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t.Errorf("Mode() returned wrong value, want 0%o, got 0%o", mode, fi.Mode())
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}
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if !modtime.Equal(time.Time{}) && !fi.ModTime().Equal(modtime) {
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t.Errorf("ModTime() returned wrong value, want %v, got %v", modtime, fi.ModTime())
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}
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if path.Base(fi.Name()) != fi.Name() {
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t.Errorf("Name() returned is not base, want %q, got %q", path.Base(fi.Name()), fi.Name())
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}
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if fi.Name() != path.Base(filename) {
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t.Errorf("Name() returned wrong value, want %q, got %q", path.Base(filename), fi.Name())
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}
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}
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func TestFSReader(t *testing.T) {
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data := test.Random(55, 1<<18+588)
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now := time.Now()
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filename := "foobar"
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var tests = []struct {
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name string
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f func(t *testing.T, fs FS)
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}{
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{
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name: "Readdirnames-slash",
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f: func(t *testing.T, fs FS) {
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verifyDirectoryContents(t, fs, "/", []string{filename})
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},
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},
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{
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name: "Readdirnames-current",
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f: func(t *testing.T, fs FS) {
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verifyDirectoryContents(t, fs, ".", []string{filename})
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},
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},
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{
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name: "Readdir-slash",
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f: func(t *testing.T, fs FS) {
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fi := fakeFileInfo{
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mode: 0644,
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modtime: now,
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name: filename,
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size: int64(len(data)),
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}
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verifyDirectoryContentsFI(t, fs, "/", []os.FileInfo{fi})
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},
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},
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{
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name: "Readdir-current",
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f: func(t *testing.T, fs FS) {
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fi := fakeFileInfo{
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mode: 0644,
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modtime: now,
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name: filename,
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size: int64(len(data)),
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}
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verifyDirectoryContentsFI(t, fs, ".", []os.FileInfo{fi})
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},
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},
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{
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name: "file/Open",
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f: func(t *testing.T, fs FS) {
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verifyFileContentOpen(t, fs, filename, data)
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},
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},
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{
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name: "file/OpenFile",
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f: func(t *testing.T, fs FS) {
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verifyFileContentOpenFile(t, fs, filename, data)
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},
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},
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{
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name: "file/Lstat",
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f: func(t *testing.T, fs FS) {
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fi, err := fs.Lstat(filename)
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if err != nil {
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t.Fatal(err)
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}
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checkFileInfo(t, fi, filename, now, 0644, false)
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},
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},
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{
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name: "file/Stat",
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f: func(t *testing.T, fs FS) {
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f, err := fs.Open(filename)
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if err != nil {
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t.Fatal(err)
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}
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fi, err := f.Stat()
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if err != nil {
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t.Fatal(err)
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}
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err = f.Close()
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if err != nil {
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t.Fatal(err)
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}
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checkFileInfo(t, fi, filename, now, 0644, false)
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},
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},
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{
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name: "dir/Lstat-slash",
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f: func(t *testing.T, fs FS) {
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fi, err := fs.Lstat("/")
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if err != nil {
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t.Fatal(err)
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}
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checkFileInfo(t, fi, "/", time.Time{}, os.ModeDir|0755, true)
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},
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},
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{
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name: "dir/Lstat-current",
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f: func(t *testing.T, fs FS) {
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fi, err := fs.Lstat(".")
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if err != nil {
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t.Fatal(err)
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}
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checkFileInfo(t, fi, ".", time.Time{}, os.ModeDir|0755, true)
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},
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},
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{
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name: "dir/Lstat-error-not-exist",
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f: func(t *testing.T, fs FS) {
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_, err := fs.Lstat("other")
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if err != os.ErrNotExist {
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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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name: "dir/Open-slash",
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f: func(t *testing.T, fs FS) {
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fi, err := fs.Lstat("/")
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if err != nil {
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t.Fatal(err)
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}
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checkFileInfo(t, fi, "/", time.Time{}, os.ModeDir|0755, true)
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},
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},
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{
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name: "dir/Open-current",
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f: func(t *testing.T, fs FS) {
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fi, err := fs.Lstat(".")
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if err != nil {
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t.Fatal(err)
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}
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checkFileInfo(t, fi, ".", time.Time{}, os.ModeDir|0755, true)
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},
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},
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}
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for _, test := range tests {
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fs := &Reader{
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Name: filename,
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ReadCloser: io.NopCloser(bytes.NewReader(data)),
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Mode: 0644,
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Size: int64(len(data)),
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ModTime: now,
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}
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t.Run(test.name, func(t *testing.T) {
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test.f(t, fs)
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})
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}
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}
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func TestFSReaderDir(t *testing.T) {
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data := test.Random(55, 1<<18+588)
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now := time.Now()
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var tests = []struct {
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name string
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filename string
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}{
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{
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name: "Lstat-absolute",
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filename: "/path/to/foobar",
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},
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{
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name: "Lstat-relative",
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filename: "path/to/foobar",
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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fs := &Reader{
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Name: test.filename,
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ReadCloser: io.NopCloser(bytes.NewReader(data)),
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Mode: 0644,
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Size: int64(len(data)),
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ModTime: now,
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}
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dir := path.Dir(fs.Name)
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for {
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if dir == "/" || dir == "." {
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break
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}
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fi, err := fs.Lstat(dir)
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if err != nil {
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t.Fatal(err)
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}
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checkFileInfo(t, fi, dir, time.Time{}, os.ModeDir|0755, true)
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dir = path.Dir(dir)
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}
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})
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}
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}
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func TestFSReaderMinFileSize(t *testing.T) {
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var tests = []struct {
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name string
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data string
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allowEmpty bool
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readMustErr bool
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}{
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{
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name: "regular",
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data: "foobar",
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},
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{
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name: "empty",
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data: "",
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allowEmpty: false,
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readMustErr: true,
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},
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{
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name: "empty2",
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data: "",
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allowEmpty: true,
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readMustErr: false,
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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fs := &Reader{
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Name: "testfile",
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ReadCloser: io.NopCloser(strings.NewReader(test.data)),
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Mode: 0644,
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ModTime: time.Now(),
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AllowEmptyFile: test.allowEmpty,
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}
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f, err := fs.Open("testfile")
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if err != nil {
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t.Fatal(err)
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}
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buf, err := io.ReadAll(f)
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if test.readMustErr {
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if err == nil {
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t.Fatal("expected error not found, got nil")
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}
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} else {
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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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if string(buf) != test.data {
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t.Fatalf("wrong data returned, want %q, got %q", test.data, string(buf))
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}
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err = f.Close()
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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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