{
			volume, "abcd", 14, 1, nil, errFileNotFound,
		},
	}

	// Create all files needed during testing.
	appendFiles := testCases[:4]
	v := NewBitrotVerifier(SHA256, getSHA256Sum([]byte("hello, world")))
	// Create test files for further reading.
	for i, appendFile := range appendFiles {
		err = xlStorage.AppendFile(context.Background(), volume, appendFile.fileName, []byte("hello, world"))