}

        @Override
        public Map<String, List<String>> getHeaderFields() {
            return Collections.emptyMap();
        }
    }

    @Test
    public void test_GzipSuccessResponse_DecompressedCorrectly() throws Exception {
        // ## Arrange ##
        String originalBody = "Hello, GZIP world!";
        byte[] gzipped = gzipCompress(originalBody);