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ResourceHttpMessageConverterTests.java
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ResourceHttpMessageConverterTests.java
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/*
* Copyright 2002-2022 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.http.converter;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import org.junit.jupiter.api.Test;
import org.springframework.core.io.ByteArrayResource;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.InputStreamResource;
import org.springframework.core.io.Resource;
import org.springframework.http.ContentDisposition;
import org.springframework.http.MediaType;
import org.springframework.util.FileCopyUtils;
import org.springframework.web.testfixture.http.MockHttpInputMessage;
import org.springframework.web.testfixture.http.MockHttpOutputMessage;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.BDDMockito.given;
import static org.mockito.BDDMockito.willThrow;
import static org.mockito.Mockito.mock;
/**
* @author Arjen Poutsma
* @author Kazuki Shimizu
* @author Brian Clozel
*/
public class ResourceHttpMessageConverterTests {
private final ResourceHttpMessageConverter converter = new ResourceHttpMessageConverter();
@Test
public void canReadResource() {
assertThat(converter.canRead(Resource.class, new MediaType("application", "octet-stream"))).isTrue();
}
@Test
public void canWriteResource() {
assertThat(converter.canWrite(Resource.class, new MediaType("application", "octet-stream"))).isTrue();
assertThat(converter.canWrite(Resource.class, MediaType.ALL)).isTrue();
}
@Test
public void shouldReadImageResource() throws IOException {
byte[] body = FileCopyUtils.copyToByteArray(getClass().getResourceAsStream("logo.jpg"));
MockHttpInputMessage inputMessage = new MockHttpInputMessage(body);
inputMessage.getHeaders().setContentType(MediaType.IMAGE_JPEG);
inputMessage.getHeaders().setContentDisposition(
ContentDisposition.attachment().filename("yourlogo.jpg").build());
Resource actualResource = converter.read(Resource.class, inputMessage);
assertThat(FileCopyUtils.copyToByteArray(actualResource.getInputStream())).isEqualTo(body);
assertThat(actualResource.getFilename()).isEqualTo("yourlogo.jpg");
}
@Test // SPR-13443
public void shouldReadInputStreamResource() throws IOException {
try (InputStream body = getClass().getResourceAsStream("logo.jpg") ) {
MockHttpInputMessage inputMessage = new MockHttpInputMessage(body);
inputMessage.getHeaders().setContentType(MediaType.IMAGE_JPEG);
inputMessage.getHeaders().setContentDisposition(
ContentDisposition.attachment().filename("yourlogo.jpg").build());
inputMessage.getHeaders().setContentLength(123);
Resource actualResource = converter.read(InputStreamResource.class, inputMessage);
assertThat(actualResource).isInstanceOf(InputStreamResource.class);
assertThat(actualResource.getInputStream()).isEqualTo(body);
assertThat(actualResource.getFilename()).isEqualTo("yourlogo.jpg");
assertThat(actualResource.contentLength()).isEqualTo(123);
}
}
@Test // SPR-14882
public void shouldNotReadInputStreamResource() throws IOException {
ResourceHttpMessageConverter noStreamConverter = new ResourceHttpMessageConverter(false);
try (InputStream body = getClass().getResourceAsStream("logo.jpg") ) {
MockHttpInputMessage inputMessage = new MockHttpInputMessage(body);
inputMessage.getHeaders().setContentType(MediaType.IMAGE_JPEG);
assertThatExceptionOfType(HttpMessageNotReadableException.class).isThrownBy(() ->
noStreamConverter.read(InputStreamResource.class, inputMessage));
}
}
@Test
public void shouldWriteImageResource() throws IOException {
MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
Resource body = new ClassPathResource("logo.jpg", getClass());
converter.write(body, null, outputMessage);
assertThat(outputMessage.getHeaders().getContentType())
.as("Invalid content-type").isEqualTo(MediaType.IMAGE_JPEG);
assertThat(outputMessage.getHeaders().getContentLength())
.as("Invalid content-length").isEqualTo(body.getFile().length());
}
@Test // SPR-10848
public void writeByteArrayNullMediaType() throws IOException {
MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
byte[] byteArray = {1, 2, 3};
Resource body = new ByteArrayResource(byteArray);
converter.write(body, null, outputMessage);
assertThat(Arrays.equals(byteArray, outputMessage.getBodyAsBytes())).isTrue();
}
@Test // SPR-12999
public void writeContentNotGettingInputStream() throws Exception {
MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
Resource resource = mock(Resource.class);
given(resource.getInputStream()).willThrow(FileNotFoundException.class);
converter.write(resource, MediaType.APPLICATION_OCTET_STREAM, outputMessage);
assertThat(outputMessage.getHeaders().getContentLength()).isEqualTo(0);
}
@Test // SPR-12999
public void writeContentNotClosingInputStream() throws Exception {
MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
Resource resource = mock(Resource.class);
InputStream inputStream = mock(InputStream.class);
given(resource.getInputStream()).willReturn(inputStream);
given(inputStream.read(any())).willReturn(-1);
willThrow(new NullPointerException()).given(inputStream).close();
converter.write(resource, MediaType.APPLICATION_OCTET_STREAM, outputMessage);
assertThat(outputMessage.getHeaders().getContentLength()).isEqualTo(0);
}
@Test // SPR-13620
public void writeContentInputStreamThrowingNullPointerException() throws Exception {
MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
Resource resource = mock(Resource.class);
InputStream in = mock(InputStream.class);
given(resource.getInputStream()).willReturn(in);
given(in.read(any())).willThrow(NullPointerException.class);
converter.write(resource, MediaType.APPLICATION_OCTET_STREAM, outputMessage);
assertThat(outputMessage.getHeaders().getContentLength()).isEqualTo(0);
}
}