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backend/test: Loose requirement about early error

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This commit is contained in:
Alexander Neumann 2017-05-28 13:05:35 +02:00
parent c5244abad9
commit f3f6924b61
1 changed files with 23 additions and 5 deletions
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28
src/restic/backend/test/tests.go
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@ -113,12 +113,15 @@ func (s *Suite) TestLoad(t *testing.T) {
b := s.open(t)
defer s.close(t, b)
_, err := b.Load(restic.Handle{}, 0, 0)
rd, err := b.Load(restic.Handle{}, 0, 0)
if err == nil {
t.Fatalf("Load() did not return an error for invalid handle")
}
if rd != nil {
rd.Close()
}
_, err = b.Load(restic.Handle{Type: restic.DataFile, Name: "foobar"}, 0, 0)
err = testLoad(b, restic.Handle{Type: restic.DataFile, Name: "foobar"}, 0, 0)
if err == nil {
t.Fatalf("Load() did not return an error for non-existing blob")
}
@ -136,7 +139,7 @@ func (s *Suite) TestLoad(t *testing.T) {
t.Logf("saved %d bytes as %v", length, handle)
rd, err := b.Load(handle, 100, -1)
rd, err = b.Load(handle, 100, -1)
if err == nil {
t.Fatalf("Load() returned no error for negative offset!")
}
@ -416,6 +419,21 @@ func store(t testing.TB, b restic.Backend, tpe restic.FileType, data []byte) res
return h
}
// testLoad loads a blob (but discards its contents).
func testLoad(b restic.Backend, h restic.Handle, length int, offset int64) error {
rd, err := b.Load(h, 0, 0)
if err != nil {
return err
}
_, err = io.Copy(ioutil.Discard, rd)
cerr := rd.Close()
if err == nil {
err = cerr
}
return err
}
// TestBackend tests all functions of the backend.
func (s *Suite) TestBackend(t *testing.T) {
b := s.open(t)
@ -441,8 +459,8 @@ func (s *Suite) TestBackend(t *testing.T) {
test.Assert(t, err != nil, "blob data could be extracted before creation")
// try to read not existing blob
_, err = b.Load(h, 0, 0)
test.Assert(t, err != nil, "blob reader could be obtained before creation")
err = testLoad(b, h, 0, 0)
test.Assert(t, err != nil, "blob could be read before creation")
// try to get string out, should fail
ret, err = b.Test(h)