@Test public void informational() throws IOException { HttpMessageConverter<?> converter = mock(HttpMessageConverter.class); extractor = new HttpMessageConverterExtractor<>(String.class, createConverterList(converter)); given(response.getStatusCode()).willReturn(HttpStatus.CONTINUE); Object result = extractor.extractData(response); assertNull(result); }
@Test public void zeroContentLength() throws IOException { HttpMessageConverter<?> converter = mock(HttpMessageConverter.class); HttpHeaders responseHeaders = new HttpHeaders(); responseHeaders.setContentLength(0); extractor = new HttpMessageConverterExtractor<>(String.class, createConverterList(converter)); given(response.getStatusCode()).willReturn(HttpStatus.OK); given(response.getHeaders()).willReturn(responseHeaders); Object result = extractor.extractData(response); assertNull(result); }
@Test @SuppressWarnings("unchecked") public void emptyMessageBody() throws IOException { HttpMessageConverter<String> converter = mock(HttpMessageConverter.class); HttpHeaders responseHeaders = new HttpHeaders(); extractor = new HttpMessageConverterExtractor<>(String.class, createConverterList(converter)); given(response.getStatusCode()).willReturn(HttpStatus.OK); given(response.getHeaders()).willReturn(responseHeaders); given(response.getBody()).willReturn(new ByteArrayInputStream("".getBytes())); Object result = extractor.extractData(response); assertNull(result); }
@Test @SuppressWarnings("unchecked") public void cannotRead() throws IOException { HttpMessageConverter<String> converter = mock(HttpMessageConverter.class); HttpHeaders responseHeaders = new HttpHeaders(); MediaType contentType = MediaType.TEXT_PLAIN; responseHeaders.setContentType(contentType); extractor = new HttpMessageConverterExtractor<>(String.class, createConverterList(converter)); given(response.getStatusCode()).willReturn(HttpStatus.OK); given(response.getHeaders()).willReturn(responseHeaders); given(response.getBody()).willReturn(new ByteArrayInputStream("Foobar".getBytes())); given(converter.canRead(String.class, contentType)).willReturn(false); exception.expect(RestClientException.class); extractor.extractData(response); }
@Test @SuppressWarnings("unchecked") public void normal() throws IOException { HttpMessageConverter<String> converter = mock(HttpMessageConverter.class); HttpHeaders responseHeaders = new HttpHeaders(); MediaType contentType = MediaType.TEXT_PLAIN; responseHeaders.setContentType(contentType); String expected = "Foo"; extractor = new HttpMessageConverterExtractor<>(String.class, createConverterList(converter)); given(response.getStatusCode()).willReturn(HttpStatus.OK); given(response.getHeaders()).willReturn(responseHeaders); given(response.getBody()).willReturn(new ByteArrayInputStream(expected.getBytes())); given(converter.canRead(String.class, contentType)).willReturn(true); given(converter.read(eq(String.class), any(HttpInputMessage.class))).willReturn(expected); Object result = extractor.extractData(response); assertEquals(expected, result); }
@Test // SPR-13592 @SuppressWarnings("unchecked") public void converterThrowsIOException() throws IOException { HttpMessageConverter<String> converter = mock(HttpMessageConverter.class); HttpHeaders responseHeaders = new HttpHeaders(); MediaType contentType = MediaType.TEXT_PLAIN; responseHeaders.setContentType(contentType); extractor = new HttpMessageConverterExtractor<>(String.class, createConverterList(converter)); given(response.getStatusCode()).willReturn(HttpStatus.OK); given(response.getHeaders()).willReturn(responseHeaders); given(response.getBody()).willReturn(new ByteArrayInputStream("Foobar".getBytes())); given(converter.canRead(String.class, contentType)).willThrow(IOException.class); exception.expect(RestClientException.class); exception.expectMessage( "Error while extracting response for type " + "[class java.lang.String] and content type [text/plain]"); exception.expectCause(Matchers.instanceOf(IOException.class)); extractor.extractData(response); }
@Test @SuppressWarnings("unchecked") public void generics() throws IOException { GenericHttpMessageConverter<String> converter = mock(GenericHttpMessageConverter.class); HttpHeaders responseHeaders = new HttpHeaders(); MediaType contentType = MediaType.TEXT_PLAIN; responseHeaders.setContentType(contentType); String expected = "Foo"; ParameterizedTypeReference<List<String>> reference = new ParameterizedTypeReference<List<String>>() {}; Type type = reference.getType(); extractor = new HttpMessageConverterExtractor<List<String>>(type, createConverterList(converter)); given(response.getStatusCode()).willReturn(HttpStatus.OK); given(response.getHeaders()).willReturn(responseHeaders); given(response.getBody()).willReturn(new ByteArrayInputStream(expected.getBytes())); given(converter.canRead(type, null, contentType)).willReturn(true); given(converter.read(eq(type), eq(null), any(HttpInputMessage.class))).willReturn(expected); Object result = extractor.extractData(response); assertEquals(expected, result); }