/*
* Copyright 2002-2014 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.messaging.converter;
import java.io.IOException;
import java.nio.charset.Charset;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import org.junit.Before;
import org.junit.Test;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageHeaders;
import org.springframework.messaging.support.MessageBuilder;
import org.springframework.util.MimeType;
import static org.junit.Assert.*;
/**
* Test fixture for {@link org.springframework.messaging.converter.MappingJackson2MessageConverter}.
*
* @author Rossen Stoyanchev
*/
public class MappingJackson2MessageConverterTests {
private static Charset UTF_8 = Charset.forName("UTF-8");
private MappingJackson2MessageConverter converter;
@Before
public void setup() {
this.converter = new MappingJackson2MessageConverter();
}
@Test
public void fromMessage() throws Exception {
String payload = "{\"bytes\":\"AQI=\",\"array\":[\"Foo\",\"Bar\"],"
+ "\"number\":42,\"string\":\"Foo\",\"bool\":true,\"fraction\":42.0}";
Message<?> message = MessageBuilder.withPayload(payload.getBytes(UTF_8)).build();
MyBean actual = (MyBean) this.converter.fromMessage(message, MyBean.class);
assertEquals("Foo", actual.getString());
assertEquals(42, actual.getNumber());
assertEquals(42F, actual.getFraction(), 0F);
assertArrayEquals(new String[]{"Foo", "Bar"}, actual.getArray());
assertTrue(actual.isBool());
assertArrayEquals(new byte[]{0x1, 0x2}, actual.getBytes());
}
@Test
public void fromMessageUntyped() throws Exception {
String payload = "{\"bytes\":\"AQI=\",\"array\":[\"Foo\",\"Bar\"],"
+ "\"number\":42,\"string\":\"Foo\",\"bool\":true,\"fraction\":42.0}";
Message<?> message = MessageBuilder.withPayload(payload.getBytes(UTF_8)).build();
@SuppressWarnings("unchecked")
HashMap<String, Object> actual = (HashMap<String, Object>) this.converter.fromMessage(message, HashMap.class);
assertEquals("Foo", actual.get("string"));
assertEquals(42, actual.get("number"));
assertEquals(42D, (Double) actual.get("fraction"), 0D);
assertEquals(Arrays.asList("Foo", "Bar"), actual.get("array"));
assertEquals(Boolean.TRUE, actual.get("bool"));
assertEquals("AQI=", actual.get("bytes"));
}
@Test(expected = MessageConversionException.class)
public void fromMessageInvalidJson() throws Exception {
String payload = "FooBar";
Message<?> message = MessageBuilder.withPayload(payload.getBytes(UTF_8)).build();
this.converter.fromMessage(message, MyBean.class);
}
@Test(expected = MessageConversionException.class)
public void fromMessageValidJsonWithUnknownProperty() throws IOException {
String payload = "{\"string\":\"string\",\"unknownProperty\":\"value\"}";
Message<?> message = MessageBuilder.withPayload(payload.getBytes(UTF_8)).build();
this.converter.fromMessage(message, MyBean.class);
}
@Test
public void toMessage() throws Exception {
MyBean payload = new MyBean();
payload.setString("Foo");
payload.setNumber(42);
payload.setFraction(42F);
payload.setArray(new String[]{"Foo", "Bar"});
payload.setBool(true);
payload.setBytes(new byte[]{0x1, 0x2});
Message<?> message = this.converter.toMessage(payload, null);
String actual = new String((byte[]) message.getPayload(), UTF_8);
assertTrue(actual.contains("\"string\":\"Foo\""));
assertTrue(actual.contains("\"number\":42"));
assertTrue(actual.contains("fraction\":42.0"));
assertTrue(actual.contains("\"array\":[\"Foo\",\"Bar\"]"));
assertTrue(actual.contains("\"bool\":true"));
assertTrue(actual.contains("\"bytes\":\"AQI=\""));
assertEquals("Invalid content-type", new MimeType("application", "json", UTF_8),
message.getHeaders().get(MessageHeaders.CONTENT_TYPE, MimeType.class));
}
@Test
public void toMessageUtf16() {
Charset utf16 = Charset.forName("UTF-16BE");
MimeType contentType = new MimeType("application", "json", utf16);
Map<String, Object> map = new HashMap<>();
map.put(MessageHeaders.CONTENT_TYPE, contentType);
MessageHeaders headers = new MessageHeaders(map);
String payload = "H\u00e9llo W\u00f6rld";
Message<?> message = this.converter.toMessage(payload, headers);
assertEquals("\"" + payload + "\"", new String((byte[]) message.getPayload(), utf16));
assertEquals(contentType, message.getHeaders().get(MessageHeaders.CONTENT_TYPE));
}
@Test
public void toMessageUtf16String() {
this.converter.setSerializedPayloadClass(String.class);
Charset utf16 = Charset.forName("UTF-16BE");
MimeType contentType = new MimeType("application", "json", utf16);
Map<String, Object> map = new HashMap<>();
map.put(MessageHeaders.CONTENT_TYPE, contentType);
MessageHeaders headers = new MessageHeaders(map);
String payload = "H\u00e9llo W\u00f6rld";
Message<?> message = this.converter.toMessage(payload, headers);
assertEquals("\"" + payload + "\"", message.getPayload());
assertEquals(contentType, message.getHeaders().get(MessageHeaders.CONTENT_TYPE));
}
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;
}
}
}