diff --git a/registry/storage/driver/testsuites/testsuites.go b/registry/storage/driver/testsuites/testsuites.go index 2ee46f5d7..c732f152b 100644 --- a/registry/storage/driver/testsuites/testsuites.go +++ b/registry/storage/driver/testsuites/testsuites.go @@ -472,6 +472,113 @@ func (suite *DriverSuite) TestReadNonexistentStream(c *check.C) { c.Assert(strings.Contains(err.Error(), suite.Name()), check.Equals, true) } +// TestWriteZeroByteStreamThenAppend tests if zero byte file handling works for append to a Stream +func (suite *DriverSuite) TestWriteZeroByteStreamThenAppend(c *check.C) { + filename := randomPath(32) + defer suite.deletePath(c, firstPart(filename)) + chunkSize := int64(32) + contentsChunk1 := randomContents(chunkSize) + + // Open a Writer + writer, err := suite.StorageDriver.Writer(suite.ctx, filename, false) + c.Assert(err, check.IsNil) + + // Close the Writer + err = writer.Commit() + c.Assert(err, check.IsNil) + err = writer.Close() + c.Assert(err, check.IsNil) + curSize := writer.Size() + c.Assert(curSize, check.Equals, int64(0)) + + // Open a Reader + reader, err := suite.StorageDriver.Reader(suite.ctx, filename, 0) + c.Assert(err, check.IsNil) + defer reader.Close() + + // Check the file is empty + buf := make([]byte, chunkSize) + n, err := reader.Read(buf) + c.Assert(err, check.Equals, io.EOF) + c.Assert(n, check.Equals, 0) + + // Open a Writer for Append + awriter, err := suite.StorageDriver.Writer(suite.ctx, filename, true) + c.Assert(err, check.IsNil) + + // Write small bytes to AppendWriter + nn, err := io.Copy(awriter, bytes.NewReader(contentsChunk1)) + c.Assert(err, check.IsNil) + c.Assert(nn, check.Equals, int64(len(contentsChunk1))) + + // Close the AppendWriter + err = awriter.Commit() + c.Assert(err, check.IsNil) + err = awriter.Close() + c.Assert(err, check.IsNil) + appendSize := awriter.Size() + c.Assert(appendSize, check.Equals, int64(len(contentsChunk1))) + + // Open a Reader + reader, err = suite.StorageDriver.Reader(suite.ctx, filename, 0) + c.Assert(err, check.IsNil) + defer reader.Close() + + // Read small bytes from Reader + readContents, err := io.ReadAll(reader) + c.Assert(err, check.IsNil) + c.Assert(readContents, check.DeepEquals, contentsChunk1) +} + +// TestWriteZeroByteContentThenAppend tests if zero byte file handling works for append to PutContent +func (suite *DriverSuite) TestWriteZeroByteContentThenAppend(c *check.C) { + filename := randomPath(32) + defer suite.deletePath(c, firstPart(filename)) + chunkSize := int64(32) + contentsChunk1 := randomContents(chunkSize) + + err := suite.StorageDriver.PutContent(suite.ctx, filename, nil) + c.Assert(err, check.IsNil) + + // Open a Reader + reader, err := suite.StorageDriver.Reader(suite.ctx, filename, 0) + c.Assert(err, check.IsNil) + defer reader.Close() + + // Check the file is empty + buf := make([]byte, chunkSize) + n, err := reader.Read(buf) + c.Assert(err, check.Equals, io.EOF) + c.Assert(n, check.Equals, 0) + + // Open a Writer for Append + awriter, err := suite.StorageDriver.Writer(suite.ctx, filename, true) + c.Assert(err, check.IsNil) + + // Write small bytes to AppendWriter + nn, err := io.Copy(awriter, bytes.NewReader(contentsChunk1)) + c.Assert(err, check.IsNil) + c.Assert(nn, check.Equals, int64(len(contentsChunk1))) + + // Close the AppendWriter + err = awriter.Commit() + c.Assert(err, check.IsNil) + err = awriter.Close() + c.Assert(err, check.IsNil) + appendSize := awriter.Size() + c.Assert(appendSize, check.Equals, int64(len(contentsChunk1))) + + // Open a Reader + reader, err = suite.StorageDriver.Reader(suite.ctx, filename, 0) + c.Assert(err, check.IsNil) + defer reader.Close() + + // Read small bytes from Reader + readContents, err := io.ReadAll(reader) + c.Assert(err, check.IsNil) + c.Assert(readContents, check.DeepEquals, contentsChunk1) +} + // TestList checks the returned list of keys after populating a directory tree. func (suite *DriverSuite) TestList(c *check.C) { rootDirectory := "/" + randomFilename(int64(8+rand.Intn(8)))