SPR-5823 - JSON HttpMessageConverter

org.springframework.web/src/test/java/org/springframework/http/converter/json/JacksonHttpMessageConverterTest.java

@@ -0,0 +1,141 @@
+/*
+ * 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.json;
+
+import java.io.IOException;
+import java.nio.charset.Charset;
+
+import static org.junit.Assert.*;
+import org.junit.Before;
+import org.junit.Test;
+
+import org.springframework.http.MediaType;
+import org.springframework.http.MockHttpInputMessage;
+import org.springframework.http.MockHttpOutputMessage;
+
+/** @author Arjen Poutsma */
+public class JacksonHttpMessageConverterTest {
+
+	private JacksonHttpMessageConverter<MyBean> converter;
+
+	@Before
+	public void setUp() {
+		converter = new JacksonHttpMessageConverter<MyBean>();
+	}
+
+	@Test
+	public void read() throws IOException {
+		String body =
+				"{\"bytes\":\"AQI=\",\"array\":[\"Foo\",\"Bar\"],\"number\":42,\"string\":\"Foo\",\"bool\":true,\"fraction\":42.0}";
+		MockHttpInputMessage inputMessage = new MockHttpInputMessage(body.getBytes("UTF-8"));
+		inputMessage.getHeaders().setContentType(new MediaType("application", "json"));
+		MyBean result = converter.read(MyBean.class, inputMessage);
+		assertEquals("Foo", result.getString());
+		assertEquals(42, result.getNumber());
+		assertEquals(42F, result.getFraction(), 0F);
+		assertArrayEquals(new String[]{"Foo", "Bar"}, result.getArray());
+		assertTrue(result.isBool());
+		assertArrayEquals(new byte[]{0x1, 0x2}, result.getBytes());
+	}
+
+	@Test
+	public void write() throws IOException {
+		MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
+		MyBean body = new MyBean();
+		body.setString("Foo");
+		body.setNumber(42);
+		body.setFraction(42F);
+		body.setArray(new String[]{"Foo", "Bar"});
+		body.setBool(true);
+		body.setBytes(new byte[]{0x1, 0x2});
+		converter.write(body, outputMessage);
+		Charset utf8 = Charset.forName("UTF-8");
+		String result = outputMessage.getBodyAsString(utf8);
+		assertTrue(result.contains("\"string\":\"Foo\""));
+		assertTrue(result.contains("\"number\":42"));
+		assertTrue(result.contains("fraction\":42.0"));
+		assertTrue(result.contains("\"array\":[\"Foo\",\"Bar\"]"));
+		assertTrue(result.contains("\"bool\":true"));
+		assertTrue(result.contains("\"bytes\":\"AQI=\""));
+		assertEquals("Invalid content-type", new MediaType("application", "json", utf8),
+				outputMessage.getHeaders().getContentType());
+	}
+
+	public static class MyBean {
+
+		private String string;
+
+		private int number;
+
+		private float fraction;
+
+		private String[] array;
+
+		private boolean bool;
+
+		private byte[] bytes;
+
+		public byte[] getBytes() {
+			return bytes;
+		}
+
+		public void setBytes(byte[] bytes) {
+			this.bytes = bytes;
+		}
+
+		public boolean isBool() {
+			return bool;
+		}
+
+		public void setBool(boolean bool) {
+			this.bool = bool;
+		}
+
+		public String getString() {
+			return string;
+		}
+
+		public void setString(String string) {
+			this.string = string;
+		}
+
+		public int getNumber() {
+			return number;
+		}
+
+		public void setNumber(int number) {
+			this.number = number;
+		}
+
+		public float getFraction() {
+			return fraction;
+		}
+
+		public void setFraction(float fraction) {
+			this.fraction = fraction;
+		}
+
+		public String[] getArray() {
+			return array;
+		}
+
+		public void setArray(String[] array) {
+			this.array = array;
+		}
+	}
+
+}