mirror of
https://github.com/restic/restic.git
synced 2024-12-23 08:16:36 +00:00
495 lines
11 KiB
Go
495 lines
11 KiB
Go
package archiver
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import (
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"context"
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"fmt"
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"os"
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"path/filepath"
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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/fs"
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"github.com/restic/restic/internal/repository"
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rtest "github.com/restic/restic/internal/test"
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)
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// MockT passes through all logging functions from T, but catches Fail(),
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// Error/f() and Fatal/f(). It is used to test helper functions.
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type MockT struct {
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*testing.T
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HasFailed bool
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}
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// Fail marks the function as having failed but continues execution.
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func (t *MockT) Fail() {
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t.T.Log("MockT Fail() called")
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t.HasFailed = true
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}
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// Fatal is equivalent to Log followed by FailNow.
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func (t *MockT) Fatal(args ...interface{}) {
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t.T.Logf("MockT Fatal called with %v", args)
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t.HasFailed = true
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}
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// Fatalf is equivalent to Logf followed by FailNow.
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func (t *MockT) Fatalf(msg string, args ...interface{}) {
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t.T.Logf("MockT Fatal called: "+msg, args...)
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t.HasFailed = true
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}
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// Error is equivalent to Log followed by Fail.
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func (t *MockT) Error(args ...interface{}) {
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t.T.Logf("MockT Error called with %v", args)
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t.HasFailed = true
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}
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// Errorf is equivalent to Logf followed by Fail.
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func (t *MockT) Errorf(msg string, args ...interface{}) {
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t.T.Logf("MockT Error called: "+msg, args...)
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t.HasFailed = true
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}
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func createFilesAt(t testing.TB, targetdir string, files map[string]interface{}) {
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for name, item := range files {
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target := filepath.Join(targetdir, filepath.FromSlash(name))
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err := os.MkdirAll(filepath.Dir(target), 0700)
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if err != nil {
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t.Fatal(err)
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}
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switch it := item.(type) {
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case TestFile:
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err := os.WriteFile(target, []byte(it.Content), 0600)
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if err != nil {
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t.Fatal(err)
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}
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case TestSymlink:
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err := os.Symlink(filepath.FromSlash(it.Target), target)
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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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func TestTestCreateFiles(t *testing.T) {
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var tests = []struct {
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dir TestDir
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files map[string]interface{}
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}{
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{
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dir: TestDir{
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"foo": TestFile{Content: "foo"},
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"subdir": TestDir{
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"subfile": TestFile{Content: "bar"},
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},
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"sub": TestDir{
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"subsub": TestDir{
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"link": TestSymlink{Target: filepath.Clean("x/y/z")},
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},
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},
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},
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files: map[string]interface{}{
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"foo": TestFile{Content: "foo"},
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"subdir": TestDir{},
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"subdir/subfile": TestFile{Content: "bar"},
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"sub/subsub/link": TestSymlink{Target: filepath.Clean("x/y/z")},
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},
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},
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}
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for i, test := range tests {
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tempdir := rtest.TempDir(t)
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t.Run("", func(t *testing.T) {
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tempdir := filepath.Join(tempdir, fmt.Sprintf("test-%d", i))
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err := os.MkdirAll(tempdir, 0700)
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if err != nil {
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t.Fatal(err)
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}
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TestCreateFiles(t, tempdir, test.dir)
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for name, item := range test.files {
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targetPath := filepath.Join(tempdir, filepath.FromSlash(name))
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fi, err := os.Lstat(targetPath)
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if err != nil {
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t.Error(err)
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continue
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}
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switch node := item.(type) {
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case TestFile:
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if !fi.Mode().IsRegular() {
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t.Errorf("is not regular file: %v", name)
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continue
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}
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content, err := os.ReadFile(targetPath)
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if err != nil {
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t.Error(err)
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continue
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}
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if string(content) != node.Content {
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t.Errorf("wrong content for %v: want %q, got %q", name, node.Content, content)
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}
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case TestSymlink:
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if fi.Mode()&os.ModeType != os.ModeSymlink {
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t.Errorf("is not symlink: %v, %o != %o", name, fi.Mode(), os.ModeSymlink)
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continue
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}
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target, err := os.Readlink(targetPath)
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if err != nil {
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t.Error(err)
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continue
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}
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if target != node.Target {
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t.Errorf("wrong target for %v: want %q, got %q", name, node.Target, target)
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}
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case TestDir:
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if !fi.IsDir() {
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t.Errorf("is not directory: %v", name)
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}
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}
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}
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})
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}
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}
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func TestTestWalkFiles(t *testing.T) {
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var tests = []struct {
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dir TestDir
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want map[string]string
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}{
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{
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dir: TestDir{
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"foo": TestFile{Content: "foo"},
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"subdir": TestDir{
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"subfile": TestFile{Content: "bar"},
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},
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"x": TestDir{
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"y": TestDir{
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"link": TestSymlink{Target: filepath.FromSlash("../../foo")},
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},
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},
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},
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want: map[string]string{
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"foo": "<File>",
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"subdir": "<Dir>",
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filepath.FromSlash("subdir/subfile"): "<File>",
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"x": "<Dir>",
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filepath.FromSlash("x/y"): "<Dir>",
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filepath.FromSlash("x/y/link"): "<Symlink>",
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},
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},
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}
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for _, test := range tests {
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t.Run("", func(t *testing.T) {
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tempdir := rtest.TempDir(t)
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got := make(map[string]string)
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TestCreateFiles(t, tempdir, test.dir)
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TestWalkFiles(t, tempdir, test.dir, func(path string, item interface{}) error {
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p, err := filepath.Rel(tempdir, path)
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if err != nil {
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return err
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}
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got[p] = fmt.Sprint(item)
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return nil
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})
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if !cmp.Equal(test.want, got) {
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t.Error(cmp.Diff(test.want, got))
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}
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})
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}
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}
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func TestTestEnsureFiles(t *testing.T) {
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var tests = []struct {
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expectFailure bool
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files map[string]interface{}
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want TestDir
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}{
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{
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files: map[string]interface{}{
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"foo": TestFile{Content: "foo"},
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"subdir/subfile": TestFile{Content: "bar"},
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"x/y/link": TestSymlink{Target: filepath.Clean("../../foo")},
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},
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want: TestDir{
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"foo": TestFile{Content: "foo"},
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"subdir": TestDir{
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"subfile": TestFile{Content: "bar"},
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},
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"x": TestDir{
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"y": TestDir{
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"link": TestSymlink{Target: filepath.Clean("../../foo")},
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},
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},
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},
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},
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{
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expectFailure: true,
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files: map[string]interface{}{
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"foo": TestFile{Content: "foo"},
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},
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want: TestDir{
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"foo": TestFile{Content: "foo"},
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"subdir": TestDir{
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"subfile": TestFile{Content: "bar"},
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},
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},
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},
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{
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expectFailure: true,
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files: map[string]interface{}{
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"foo": TestFile{Content: "foo"},
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"subdir/subfile": TestFile{Content: "bar"},
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},
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want: TestDir{
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"foo": TestFile{Content: "foo"},
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},
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},
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{
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expectFailure: true,
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files: map[string]interface{}{
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"foo": TestFile{Content: "xxx"},
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},
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want: TestDir{
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"foo": TestFile{Content: "foo"},
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},
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},
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{
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expectFailure: true,
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files: map[string]interface{}{
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"foo": TestSymlink{Target: "/xxx"},
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},
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want: TestDir{
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"foo": TestFile{Content: "foo"},
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},
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},
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{
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expectFailure: true,
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files: map[string]interface{}{
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"foo": TestFile{Content: "foo"},
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},
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want: TestDir{
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"foo": TestSymlink{Target: "/xxx"},
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},
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},
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{
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expectFailure: true,
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files: map[string]interface{}{
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"foo": TestSymlink{Target: "xxx"},
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},
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want: TestDir{
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"foo": TestSymlink{Target: "/yyy"},
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},
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},
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{
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expectFailure: true,
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files: map[string]interface{}{
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"foo": TestDir{
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"foo": TestFile{Content: "foo"},
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},
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},
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want: TestDir{
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"foo": TestFile{Content: "foo"},
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},
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},
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{
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expectFailure: true,
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files: map[string]interface{}{
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"foo": TestFile{Content: "foo"},
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},
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want: TestDir{
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"foo": TestDir{
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"foo": TestFile{Content: "foo"},
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},
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},
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},
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}
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for _, test := range tests {
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t.Run("", func(t *testing.T) {
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tempdir := rtest.TempDir(t)
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createFilesAt(t, tempdir, test.files)
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subtestT := testing.TB(t)
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if test.expectFailure {
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subtestT = &MockT{T: t}
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}
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TestEnsureFiles(subtestT, tempdir, test.want)
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if test.expectFailure && !subtestT.(*MockT).HasFailed {
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t.Fatal("expected failure of TestEnsureFiles not found")
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}
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})
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}
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}
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func TestTestEnsureSnapshot(t *testing.T) {
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var tests = []struct {
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expectFailure bool
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files map[string]interface{}
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want TestDir
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}{
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{
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files: map[string]interface{}{
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"foo": TestFile{Content: "foo"},
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filepath.FromSlash("subdir/subfile"): TestFile{Content: "bar"},
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filepath.FromSlash("x/y/link"): TestSymlink{Target: filepath.FromSlash("../../foo")},
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},
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want: TestDir{
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"target": TestDir{
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"foo": TestFile{Content: "foo"},
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"subdir": TestDir{
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"subfile": TestFile{Content: "bar"},
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},
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"x": TestDir{
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"y": TestDir{
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"link": TestSymlink{Target: filepath.FromSlash("../../foo")},
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},
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},
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},
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},
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},
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{
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expectFailure: true,
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files: map[string]interface{}{
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"foo": TestFile{Content: "foo"},
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},
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want: TestDir{
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"target": TestDir{
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"bar": TestFile{Content: "foo"},
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},
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},
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},
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{
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expectFailure: true,
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files: map[string]interface{}{
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"foo": TestFile{Content: "foo"},
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"bar": TestFile{Content: "bar"},
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},
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want: TestDir{
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"target": TestDir{
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"foo": TestFile{Content: "foo"},
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},
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},
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},
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{
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expectFailure: true,
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files: map[string]interface{}{
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"foo": TestFile{Content: "foo"},
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},
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want: TestDir{
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"target": TestDir{
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"foo": TestFile{Content: "foo"},
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"bar": TestFile{Content: "bar"},
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},
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},
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},
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{
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expectFailure: true,
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files: map[string]interface{}{
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"foo": TestFile{Content: "foo"},
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},
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want: TestDir{
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"target": TestDir{
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"foo": TestDir{
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"foo": TestFile{Content: "foo"},
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},
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},
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},
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},
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{
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expectFailure: true,
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files: map[string]interface{}{
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"foo": TestSymlink{Target: filepath.FromSlash("x/y/z")},
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},
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want: TestDir{
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"target": TestDir{
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"foo": TestFile{Content: "foo"},
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},
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},
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},
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{
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expectFailure: true,
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files: map[string]interface{}{
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"foo": TestSymlink{Target: filepath.FromSlash("x/y/z")},
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},
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want: TestDir{
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"target": TestDir{
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"foo": TestSymlink{Target: filepath.FromSlash("x/y/z2")},
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},
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},
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},
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{
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expectFailure: true,
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files: map[string]interface{}{
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"foo": TestFile{Content: "foo"},
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},
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want: TestDir{
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"target": TestDir{
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"foo": TestFile{Content: "xxx"},
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},
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},
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},
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}
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for _, test := range tests {
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t.Run("", func(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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tempdir := rtest.TempDir(t)
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targetDir := filepath.Join(tempdir, "target")
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err := os.Mkdir(targetDir, 0700)
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if err != nil {
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t.Fatal(err)
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}
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createFilesAt(t, targetDir, test.files)
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back := rtest.Chdir(t, tempdir)
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defer back()
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repo := repository.TestRepository(t)
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arch := New(repo, fs.Local{}, Options{})
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opts := SnapshotOptions{
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Time: time.Now(),
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Hostname: "localhost",
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Tags: []string{"test"},
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}
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_, id, _, err := arch.Snapshot(ctx, []string{"."}, opts)
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if err != nil {
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t.Fatal(err)
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}
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t.Logf("snapshot saved as %v", id.Str())
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subtestT := testing.TB(t)
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if test.expectFailure {
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subtestT = &MockT{T: t}
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}
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TestEnsureSnapshot(subtestT, repo, id, test.want)
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if test.expectFailure && !subtestT.(*MockT).HasFailed {
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t.Fatal("expected failure of TestEnsureSnapshot not found")
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}
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})
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}
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}
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