@Test public void write() throws IOException { MockHttpOutputMessage outputMessage = new MockHttpOutputMessage(); byte[] body = new byte[]{0x1, 0x2}; converter.write(body, null, outputMessage); assertArrayEquals("Invalid result", body, outputMessage.getBodyAsBytes()); assertEquals("Invalid content-type", new MediaType("application", "octet-stream"), outputMessage.getHeaders().getContentType()); assertEquals("Invalid content-length", 2, outputMessage.getHeaders().getContentLength()); }