SPR-5782 - BufferedImageHttpMessageConverter

org.springframework.web/src/test/java/org/springframework/http/converter/BufferedImageHttpMessageConverterTests.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright 2002-2009 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
+ *
+ *      http://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.awt.image.BufferedImage;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import javax.imageio.ImageIO;
+
+import static org.junit.Assert.*;
+import org.junit.Before;
+import org.junit.Test;
+
+import org.springframework.core.io.ClassPathResource;
+import org.springframework.core.io.Resource;
+import org.springframework.http.MediaType;
+import org.springframework.http.MockHttpInputMessage;
+import org.springframework.http.MockHttpOutputMessage;
+import org.springframework.util.FileCopyUtils;
+
+public class BufferedImageHttpMessageConverterTests {
+
+	private BufferedImageHttpMessageConverter converter;
+
+	@Before
+	public void setUp() {
+		converter = new BufferedImageHttpMessageConverter();
+	}
+
+	@Test
+	public void supports() {
+		assertTrue("Image not supported", converter.supports(BufferedImage.class));
+	}
+
+	@Test
+	public void read() throws IOException {
+		Resource logo = new ClassPathResource("logo.jpg", BufferedImageHttpMessageConverterTests.class);
+		byte[] body = FileCopyUtils.copyToByteArray(logo.getInputStream());
+		MockHttpInputMessage inputMessage = new MockHttpInputMessage(body);
+		inputMessage.getHeaders().setContentType(new MediaType("image", "jpeg"));
+		BufferedImage result = converter.read(BufferedImage.class, inputMessage);
+		assertEquals("Invalid height", 500, result.getHeight());
+		assertEquals("Invalid width", 750, result.getWidth());
+	}
+
+	@Test
+	public void write() throws IOException {
+		Resource logo = new ClassPathResource("logo.jpg", BufferedImageHttpMessageConverterTests.class);
+		MediaType contentType = new MediaType("image", "png");
+		converter.setContentType(contentType);
+		BufferedImage body = ImageIO.read(logo.getFile());
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		converter.write(body, outputMessage);
+		assertEquals("Invalid content type", contentType, outputMessage.getHeaders().getContentType());
+		assertTrue("Invalid size", outputMessage.getBodyAsBytes().length > 0);
+		BufferedImage result = ImageIO.read(new ByteArrayInputStream(outputMessage.getBodyAsBytes()));
+		assertEquals("Invalid height", 500, result.getHeight());
+		assertEquals("Invalid width", 750, result.getWidth());
+	}
+
+}