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restic/internal/dump/zip_test.go
greatroar c71729dfc4 Refactor internal/dump + concurrent load/write
Package internal/dump has been reworked so its API consists of a single
type Dumper that handles tar and zip formats. Tree loading and node
writing happen concurrently.
2021-11-01 23:01:55 +01:00

130 lines
2.9 KiB
Go

package dump
import (
"archive/zip"
"bytes"
"fmt"
"io/ioutil"
"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 := ioutil.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
}