func TestMissingPack(t *testing.T) {
repodir, cleanup := test.Env(t, checkerTestData)
defer cleanup()
repo := repository.TestOpenLocal(t, repodir)
packID := "657f7fb64f6a854fff6fe9279998ee09034901eded4e6db9bcee0e59745bbce6"
test.OK(t, repo.Backend().Remove(restic.DataFile, packID))
chkr := checker.New(repo)
hints, errs := chkr.LoadIndex()
if len(errs) > 0 {
t.Fatalf("expected no errors, got %v: %v", len(errs), errs)
}
if len(hints) > 0 {
t.Errorf("expected no hints, got %v: %v", len(hints), hints)
}
errs = checkPacks(chkr)
test.Assert(t, len(errs) == 1,
"expected exactly one error, got %v", len(errs))
if err, ok := errs[0].(checker.PackError); ok {
test.Equals(t, packID, err.ID.String())
} else {
t.Errorf("expected error returned by checker.Packs() to be PackError, got %v", err)
}
}
func TestUnreferencedPack(t *testing.T) {
repodir, cleanup := test.Env(t, checkerTestData)
defer cleanup()
repo := repository.TestOpenLocal(t, repodir)
// index 3f1a only references pack 60e0
indexID := "3f1abfcb79c6f7d0a3be517d2c83c8562fba64ef2c8e9a3544b4edaf8b5e3b44"
packID := "60e0438dcb978ec6860cc1f8c43da648170ee9129af8f650f876bad19f8f788e"
test.OK(t, repo.Backend().Remove(restic.IndexFile, indexID))
chkr := checker.New(repo)
hints, errs := chkr.LoadIndex()
if len(errs) > 0 {
t.Fatalf("expected no errors, got %v: %v", len(errs), errs)
}
if len(hints) > 0 {
t.Errorf("expected no hints, got %v: %v", len(hints), hints)
}
errs = checkPacks(chkr)
test.Assert(t, len(errs) == 1,
"expected exactly one error, got %v", len(errs))
if err, ok := errs[0].(checker.PackError); ok {
test.Equals(t, packID, err.ID.String())
} else {
t.Errorf("expected error returned by checker.Packs() to be PackError, got %v", err)
}
}
func TestCheckerModifiedData(t *testing.T) {
be := mem.New()
repository.TestUseLowSecurityKDFParameters(t)
repo := repository.New(be)
test.OK(t, repo.Init(test.TestPassword))
arch := archiver.New(repo)
_, id, err := arch.Snapshot(nil, []string{"."}, nil, nil)
test.OK(t, err)
t.Logf("archived as %v", id.Str())
beError := &errorBackend{Backend: be}
checkRepo := repository.New(beError)
test.OK(t, checkRepo.SearchKey(test.TestPassword, 5))
chkr := checker.New(checkRepo)
hints, errs := chkr.LoadIndex()
if len(errs) > 0 {
t.Fatalf("expected no errors, got %v: %v", len(errs), errs)
}
if len(hints) > 0 {
t.Errorf("expected no hints, got %v: %v", len(hints), hints)
}
beError.ProduceErrors = true
errFound := false
for _, err := range checkPacks(chkr) {
t.Logf("pack error: %v", err)
}
for _, err := range checkStruct(chkr) {
t.Logf("struct error: %v", err)
}
for _, err := range checkData(chkr) {
t.Logf("struct error: %v", err)
errFound = true
}
if !errFound {
t.Fatal("no error found, checker is broken")
}
}
// TestLoadNegativeOffset tests the backend's Load function with negative offsets.
func TestLoadNegativeOffset(t testing.TB) {
b := open(t)
defer close(t)
length := rand.Intn(1<<24) + 2000
data := test.Random(23, length)
id := restic.Hash(data)
handle := restic.Handle{Type: restic.DataFile, Name: id.String()}
err := b.Save(handle, data)
if err != nil {
t.Fatalf("Save() error: %v", err)
}
// test normal reads
for i := 0; i < 50; i++ {
l := rand.Intn(length + 2000)
o := -rand.Intn(length + 2000)
buf := make([]byte, l)
n, err := b.Load(handle, buf, int64(o))
// if we requested data beyond the end of the file, require
// ErrUnexpectedEOF error
if len(buf) > -o {
if errors.Cause(err) != io.ErrUnexpectedEOF {
t.Errorf("Load(%d, %d) did not return io.ErrUnexpectedEOF", len(buf), o)
continue
}
err = nil
buf = buf[:-o]
}
if err != nil {
t.Errorf("Load(%d, %d) returned error: %v", len(buf), o, err)
continue
}
if n != len(buf) {
t.Errorf("Load(%d, %d) returned short read, only got %d bytes", len(buf), o, n)
continue
}
p := len(data) + o
if !bytes.Equal(buf, data[p:p+len(buf)]) {
t.Errorf("Load(%d, %d) returned wrong bytes", len(buf), o)
continue
}
}
test.OK(t, b.Remove(restic.DataFile, id.String()))
}
// TestSave tests saving data in the backend.
func TestSave(t testing.TB) {
b := open(t)
defer close(t)
var id restic.ID
for i := 0; i < 10; i++ {
length := rand.Intn(1<<23) + 200000
data := test.Random(23, length)
// use the first 32 byte as the ID
copy(id[:], data)
h := restic.Handle{
Type: restic.DataFile,
Name: fmt.Sprintf("%s-%d", id, i),
}
err := b.Save(h, data)
test.OK(t, err)
buf, err := backend.LoadAll(b, h, nil)
test.OK(t, err)
if len(buf) != len(data) {
t.Fatalf("number of bytes does not match, want %v, got %v", len(data), len(buf))
}
if !bytes.Equal(buf, data) {
t.Fatalf("data not equal")
}
fi, err := b.Stat(h)
test.OK(t, err)
if fi.Size != int64(len(data)) {
t.Fatalf("Stat() returned different size, want %q, got %d", len(data), fi.Size)
}
err = b.Remove(h.Type, h.Name)
if err != nil {
t.Fatalf("error removing item: %v", err)
}
}
}
func TestUnreferencedBlobs(t *testing.T) {
repodir, cleanup := test.Env(t, checkerTestData)
defer cleanup()
repo := repository.TestOpenLocal(t, repodir)
snID := "51d249d28815200d59e4be7b3f21a157b864dc343353df9d8e498220c2499b02"
test.OK(t, repo.Backend().Remove(restic.SnapshotFile, snID))
unusedBlobsBySnapshot := restic.IDs{
restic.TestParseID("58c748bbe2929fdf30c73262bd8313fe828f8925b05d1d4a87fe109082acb849"),
restic.TestParseID("988a272ab9768182abfd1fe7d7a7b68967825f0b861d3b36156795832c772235"),
restic.TestParseID("c01952de4d91da1b1b80bc6e06eaa4ec21523f4853b69dc8231708b9b7ec62d8"),
restic.TestParseID("bec3a53d7dc737f9a9bee68b107ec9e8ad722019f649b34d474b9982c3a3fec7"),
restic.TestParseID("2a6f01e5e92d8343c4c6b78b51c5a4dc9c39d42c04e26088c7614b13d8d0559d"),
restic.TestParseID("18b51b327df9391732ba7aaf841a4885f350d8a557b2da8352c9acf8898e3f10"),
}
sort.Sort(unusedBlobsBySnapshot)
chkr := checker.New(repo)
hints, errs := chkr.LoadIndex()
if len(errs) > 0 {
t.Fatalf("expected no errors, got %v: %v", len(errs), errs)
}
if len(hints) > 0 {
t.Errorf("expected no hints, got %v: %v", len(hints), hints)
}
test.OKs(t, checkPacks(chkr))
test.OKs(t, checkStruct(chkr))
blobs := chkr.UnusedBlobs()
sort.Sort(blobs)
test.Equals(t, unusedBlobsBySnapshot, blobs)
}
// TestBackend tests all functions of the backend.
func TestBackend(t testing.TB) {
b := open(t)
defer close(t)
for _, tpe := range []restic.FileType{
restic.DataFile, restic.KeyFile, restic.LockFile,
restic.SnapshotFile, restic.IndexFile,
} {
// detect non-existing files
for _, ts := range testStrings {
id, err := restic.ParseID(ts.id)
test.OK(t, err)
// test if blob is already in repository
ret, err := b.Test(tpe, id.String())
test.OK(t, err)
test.Assert(t, !ret, "blob was found to exist before creating")
// try to stat a not existing blob
h := restic.Handle{Type: tpe, Name: id.String()}
_, err = b.Stat(h)
test.Assert(t, err != nil, "blob data could be extracted before creation")
// try to read not existing blob
_, err = b.Load(h, nil, 0)
test.Assert(t, err != nil, "blob reader could be obtained before creation")
// try to get string out, should fail
ret, err = b.Test(tpe, id.String())
test.OK(t, err)
test.Assert(t, !ret, "id %q was found (but should not have)", ts.id)
}
// add files
for _, ts := range testStrings {
store(t, b, tpe, []byte(ts.data))
// test Load()
h := restic.Handle{Type: tpe, Name: ts.id}
buf, err := backend.LoadAll(b, h, nil)
test.OK(t, err)
test.Equals(t, ts.data, string(buf))
// try to read it out with an offset and a length
start := 1
end := len(ts.data) - 2
length := end - start
buf2 := make([]byte, length)
n, err := b.Load(h, buf2, int64(start))
test.OK(t, err)
test.Equals(t, length, n)
test.Equals(t, ts.data[start:end], string(buf2))
}
// test adding the first file again
ts := testStrings[0]
// create blob
err := b.Save(restic.Handle{Type: tpe, Name: ts.id}, []byte(ts.data))
test.Assert(t, err != nil, "expected error, got %v", err)
// remove and recreate
err = b.Remove(tpe, ts.id)
test.OK(t, err)
// test that the blob is gone
ok, err := b.Test(tpe, ts.id)
test.OK(t, err)
test.Assert(t, ok == false, "removed blob still present")
// create blob
err = b.Save(restic.Handle{Type: tpe, Name: ts.id}, []byte(ts.data))
test.OK(t, err)
// list items
IDs := restic.IDs{}
for _, ts := range testStrings {
id, err := restic.ParseID(ts.id)
test.OK(t, err)
IDs = append(IDs, id)
}
list := restic.IDs{}
for s := range b.List(tpe, nil) {
list = append(list, restic.TestParseID(s))
}
if len(IDs) != len(list) {
t.Fatalf("wrong number of IDs returned: want %d, got %d", len(IDs), len(list))
}
sort.Sort(IDs)
sort.Sort(list)
if !reflect.DeepEqual(IDs, list) {
t.Fatalf("lists aren't equal, want:\n %v\n got:\n%v\n", IDs, list)
}
// remove content if requested
if test.TestCleanupTempDirs {
for _, ts := range testStrings {
id, err := restic.ParseID(ts.id)
test.OK(t, err)
found, err := b.Test(tpe, id.String())
test.OK(t, err)
test.OK(t, b.Remove(tpe, id.String()))
found, err = b.Test(tpe, id.String())
test.OK(t, err)
test.Assert(t, !found, fmt.Sprintf("id %q not found after removal", id))
}
}
}
}
func store(t testing.TB, b restic.Backend, tpe restic.FileType, data []byte) {
id := restic.Hash(data)
err := b.Save(restic.Handle{Name: id.String(), Type: tpe}, data)
test.OK(t, err)
}
// TestLoad tests the backend's Load function.
func TestLoad(t testing.TB) {
b := open(t)
defer close(t)
_, err := b.Load(restic.Handle{}, nil, 0)
if err == nil {
t.Fatalf("Load() did not return an error for invalid handle")
}
_, err = b.Load(restic.Handle{Type: restic.DataFile, Name: "foobar"}, nil, 0)
if err == nil {
t.Fatalf("Load() did not return an error for non-existing blob")
}
length := rand.Intn(1<<24) + 2000
data := test.Random(23, length)
id := restic.Hash(data)
handle := restic.Handle{Type: restic.DataFile, Name: id.String()}
err = b.Save(handle, data)
if err != nil {
t.Fatalf("Save() error: %v", err)
}
for i := 0; i < 50; i++ {
l := rand.Intn(length + 2000)
o := rand.Intn(length + 2000)
d := data
if o < len(d) {
d = d[o:]
} else {
o = len(d)
d = d[:0]
}
if l > 0 && l < len(d) {
d = d[:l]
}
buf := make([]byte, l)
n, err := b.Load(handle, buf, int64(o))
// if we requested data beyond the end of the file, require
// ErrUnexpectedEOF error
if l > len(d) {
if errors.Cause(err) != io.ErrUnexpectedEOF {
t.Errorf("Load(%d, %d) did not return io.ErrUnexpectedEOF", len(buf), int64(o))
}
err = nil
buf = buf[:len(d)]
}
if err != nil {
t.Errorf("Load(%d, %d): unexpected error: %v", len(buf), int64(o), err)
continue
}
if n != len(buf) {
t.Errorf("Load(%d, %d): wrong length returned, want %d, got %d",
len(buf), int64(o), len(buf), n)
continue
}
buf = buf[:n]
if !bytes.Equal(buf, d) {
t.Errorf("Load(%d, %d) returned wrong bytes", len(buf), int64(o))
continue
}
}
// test with negative offset
for i := 0; i < 50; i++ {
l := rand.Intn(length + 2000)
o := rand.Intn(length + 2000)
d := data
if o < len(d) {
d = d[len(d)-o:]
} else {
o = 0
}
if l > 0 && l < len(d) {
d = d[:l]
}
buf := make([]byte, l)
n, err := b.Load(handle, buf, -int64(o))
// if we requested data beyond the end of the file, require
// ErrUnexpectedEOF error
if l > len(d) {
if errors.Cause(err) != io.ErrUnexpectedEOF {
t.Errorf("Load(%d, %d) did not return io.ErrUnexpectedEOF", len(buf), int64(o))
continue
}
err = nil
buf = buf[:len(d)]
}
if err != nil {
t.Errorf("Load(%d, %d): unexpected error: %v", len(buf), int64(o), err)
continue
}
if n != len(buf) {
t.Errorf("Load(%d, %d): wrong length returned, want %d, got %d",
len(buf), int64(o), len(buf), n)
continue
}
buf = buf[:n]
if !bytes.Equal(buf, d) {
t.Errorf("Load(%d, %d) returned wrong bytes", len(buf), int64(o))
continue
}
}
// load with a too-large buffer, this should return io.ErrUnexpectedEOF
buf := make([]byte, length+100)
n, err := b.Load(handle, buf, 0)
if n != length {
t.Errorf("wrong length for larger buffer returned, want %d, got %d", length, n)
}
if errors.Cause(err) != io.ErrUnexpectedEOF {
t.Errorf("wrong error returned for larger buffer: want io.ErrUnexpectedEOF, got %#v", err)
}
test.OK(t, b.Remove(restic.DataFile, id.String()))
}