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1d6d3656b0
LoadRaw also includes improved context cancellation handling similar to the implementation in repository.LoadUnpacked. The removed cache backend test will be added again later on.
92 lines
2.5 KiB
Go
92 lines
2.5 KiB
Go
package repository_test
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import (
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"bytes"
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"context"
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"io"
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"math/rand"
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"testing"
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"github.com/restic/restic/internal/backend"
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"github.com/restic/restic/internal/backend/mem"
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"github.com/restic/restic/internal/backend/mock"
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"github.com/restic/restic/internal/errors"
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"github.com/restic/restic/internal/repository"
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"github.com/restic/restic/internal/restic"
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rtest "github.com/restic/restic/internal/test"
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)
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const KiB = 1 << 10
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const MiB = 1 << 20
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func TestLoadAll(t *testing.T) {
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b := mem.New()
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repo, err := repository.New(b, repository.Options{})
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rtest.OK(t, err)
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for i := 0; i < 5; i++ {
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data := rtest.Random(23+i, rand.Intn(MiB)+500*KiB)
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id := restic.Hash(data)
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h := backend.Handle{Name: id.String(), Type: backend.PackFile}
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err := b.Save(context.TODO(), h, backend.NewByteReader(data, b.Hasher()))
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rtest.OK(t, err)
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buf, err := repo.LoadRaw(context.TODO(), backend.PackFile, id)
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rtest.OK(t, err)
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if len(buf) != len(data) {
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t.Errorf("length of returned buffer does not match, want %d, got %d", len(data), len(buf))
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continue
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}
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if !bytes.Equal(buf, data) {
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t.Errorf("wrong data returned")
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continue
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}
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}
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}
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type quickRetryBackend struct {
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backend.Backend
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}
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func (be *quickRetryBackend) Load(ctx context.Context, h backend.Handle, length int, offset int64, fn func(rd io.Reader) error) error {
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err := be.Backend.Load(ctx, h, length, offset, fn)
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if err != nil {
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// retry
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err = be.Backend.Load(ctx, h, length, offset, fn)
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}
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return err
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}
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func TestLoadAllBroken(t *testing.T) {
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b := mock.NewBackend()
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repo, err := repository.New(b, repository.Options{})
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rtest.OK(t, err)
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data := rtest.Random(23, rand.Intn(MiB)+500*KiB)
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id := restic.Hash(data)
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// damage buffer
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data[0] ^= 0xff
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b.OpenReaderFn = func(ctx context.Context, h backend.Handle, length int, offset int64) (io.ReadCloser, error) {
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return io.NopCloser(bytes.NewReader(data)), nil
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}
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// must fail on first try
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_, err = repo.LoadRaw(context.TODO(), backend.PackFile, id)
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rtest.Assert(t, errors.Is(err, restic.ErrInvalidData), "missing expected ErrInvalidData error, got %v", err)
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// must return the broken data after a retry
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be := &quickRetryBackend{Backend: b}
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repo, err = repository.New(be, repository.Options{})
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rtest.OK(t, err)
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buf, err := repo.LoadRaw(context.TODO(), backend.PackFile, id)
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rtest.Assert(t, errors.Is(err, restic.ErrInvalidData), "missing expected ErrInvalidData error, got %v", err)
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if !bytes.Equal(buf, data) {
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t.Fatalf("wrong data returned")
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}
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}
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