package dump import ( "archive/zip" "bytes" "fmt" "os" "path/filepath" "strings" "testing" "time" "github.com/restic/restic/internal/fs" ) func TestWriteZip(t *testing.T) { WriteTest(t, "zip", checkZip) } func readZipFile(f *zip.File) ([]byte, error) { rc, err := f.Open() if err != nil { return nil, err } b := &bytes.Buffer{} _, err = b.ReadFrom(rc) if err != nil { // ignore subsequent errors _ = rc.Close() return nil, err } err = rc.Close() if err != nil { return nil, err } return b.Bytes(), nil } func checkZip(t *testing.T, testDir string, srcZip *bytes.Buffer) error { z, err := zip.NewReader(bytes.NewReader(srcZip.Bytes()), int64(srcZip.Len())) if err != nil { return err } fileNumber := 0 zipFiles := len(z.File) err = filepath.Walk(testDir, func(path string, info os.FileInfo, err error) error { if err != nil { return err } if info.Name() != filepath.Base(testDir) { fileNumber++ } return nil }) if err != nil { return err } for _, f := range z.File { matchPath := filepath.Join(testDir, f.Name) match, err := os.Lstat(matchPath) if err != nil { return err } // check metadata, zip header contains time rounded to seconds fileTime := match.ModTime().Truncate(time.Second) zipTime := f.Modified if !fileTime.Equal(zipTime) { return fmt.Errorf("modTime does not match, got: %s, want: %s", zipTime, fileTime) } if f.Mode() != match.Mode() { return fmt.Errorf("mode does not match, got: %v [%08x], want: %v [%08x]", f.Mode(), uint32(f.Mode()), match.Mode(), uint32(match.Mode())) } t.Logf("Mode is %v [%08x] for %s", f.Mode(), uint32(f.Mode()), f.Name) switch { case f.FileInfo().IsDir(): filebase := filepath.ToSlash(match.Name()) if filepath.Base(f.Name) != filebase { return fmt.Errorf("foldernames don't match got %v want %v", filepath.Base(f.Name), filebase) } if !strings.HasSuffix(f.Name, "/") { return fmt.Errorf("foldernames must end with separator got %v", f.Name) } case f.Mode()&os.ModeSymlink != 0: target, err := fs.Readlink(matchPath) if err != nil { return err } linkName, err := readZipFile(f) if err != nil { t.Fatal(err) } if target != string(linkName) { return fmt.Errorf("symlink target does not match, got %s want %s", string(linkName), target) } default: if uint64(match.Size()) != f.UncompressedSize64 { return fmt.Errorf("size does not match got %v want %v", f.UncompressedSize64, match.Size()) } contentsFile, err := os.ReadFile(matchPath) if err != nil { t.Fatal(err) } contentsZip, err := readZipFile(f) if err != nil { t.Fatal(err) } if string(contentsZip) != string(contentsFile) { return fmt.Errorf("contents does not match, got %s want %s", contentsZip, contentsFile) } } } if zipFiles != fileNumber { return fmt.Errorf("not the same amount of files got %v want %v", zipFiles, fileNumber) } return nil }