/*
* 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.handler.annotation.support;
import java.lang.reflect.Method;
import java.util.Locale;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.springframework.core.MethodParameter;
import org.springframework.messaging.Message;
import org.springframework.messaging.support.ErrorMessage;
import org.springframework.messaging.support.GenericMessage;
import org.springframework.messaging.support.MessageBuilder;
import static org.junit.Assert.*;
/**
* Unit tests for
* {@link org.springframework.messaging.handler.annotation.support.MessageMethodArgumentResolver}.
*
* @author Stephane Nicoll
*/
public class MessageMethodArgumentResolverTests {
@Rule
public final ExpectedException thrown = ExpectedException.none();
private final MessageMethodArgumentResolver resolver = new MessageMethodArgumentResolver();
private Method method;
@Before
public void setup() throws Exception {
this.method = MessageMethodArgumentResolverTests.class.getDeclaredMethod("handleMessage",
Message.class, Message.class, Message.class, Message.class, ErrorMessage.class);
}
@Test
public void resolveAnyPayloadType() throws Exception {
Message<String> message = MessageBuilder.withPayload("test").build();
MethodParameter parameter = new MethodParameter(this.method, 0);
assertTrue("Parameter '" + parameter + "' should be supported", this.resolver.supportsParameter(parameter));
assertSame(message, this.resolver.resolveArgument(parameter, message));
}
@Test
public void resolvePayloadTypeExactType() throws Exception {
Message<Integer> message = MessageBuilder.withPayload(123).build();
MethodParameter parameter = new MethodParameter(this.method, 1);
assertTrue("Parameter '" + parameter + "' should be supported", this.resolver.supportsParameter(parameter));
assertSame(message, this.resolver.resolveArgument(parameter, message));
}
@Test
public void resolvePayloadTypeSubClass() throws Exception {
Message<Integer> message = MessageBuilder.withPayload(123).build();
MethodParameter parameter = new MethodParameter(this.method, 2);
assertTrue("Parameter '" + parameter + "' should be supported", this.resolver.supportsParameter(parameter));
assertSame(message, this.resolver.resolveArgument(parameter, message));
}
@Test
public void resolveInvalidPayloadType() throws Exception {
Message<String> message = MessageBuilder.withPayload("test").build();
MethodParameter parameter = new MethodParameter(this.method, 1);
assertTrue("Parameter '" + parameter + "' should be supported", this.resolver.supportsParameter(parameter));
thrown.expect(MethodArgumentTypeMismatchException.class);
thrown.expectMessage(Integer.class.getName());
thrown.expectMessage(String.class.getName());
this.resolver.resolveArgument(parameter, message);
}
@Test
public void resolveUpperBoundPayloadType() throws Exception {
Message<Integer> message = MessageBuilder.withPayload(123).build();
MethodParameter parameter = new MethodParameter(this.method, 3);
assertTrue("Parameter '" + parameter + "' should be supported", this.resolver.supportsParameter(parameter));
assertSame(message, this.resolver.resolveArgument(parameter, message));
}
@Test
public void resolveOutOfBoundPayloadType() throws Exception {
Message<Locale> message = MessageBuilder.withPayload(Locale.getDefault()).build();
MethodParameter parameter = new MethodParameter(this.method, 3);
assertTrue("Parameter '" + parameter + "' should be supported", this.resolver.supportsParameter(parameter));
thrown.expect(MethodArgumentTypeMismatchException.class);
thrown.expectMessage(Number.class.getName());
thrown.expectMessage(Locale.class.getName());
this.resolver.resolveArgument(parameter, message);
}
@Test
public void resolveMessageSubTypeExactMatch() throws Exception {
ErrorMessage message = new ErrorMessage(new UnsupportedOperationException());
MethodParameter parameter = new MethodParameter(this.method, 4);
assertTrue("Parameter '" + parameter + "' should be supported", this.resolver.supportsParameter(parameter));
assertSame(message, this.resolver.resolveArgument(parameter, message));
}
@Test
public void resolveMessageSubTypeSubClass() throws Exception {
ErrorMessage message = new ErrorMessage(new UnsupportedOperationException());
MethodParameter parameter = new MethodParameter(this.method, 0);
assertTrue("Parameter '" + parameter + "' should be supported", this.resolver.supportsParameter(parameter));
assertSame(message, this.resolver.resolveArgument(parameter, message));
}
@Test
public void resolveWrongMessageType() throws Exception {
Message<? extends Throwable> message = new GenericMessage<Throwable>(new UnsupportedOperationException());
MethodParameter parameter = new MethodParameter(this.method, 4);
assertTrue("Parameter '" + parameter + "' should be supported", this.resolver.supportsParameter(parameter));
thrown.expect(MethodArgumentTypeMismatchException.class);
thrown.expectMessage(ErrorMessage.class.getName());
thrown.expectMessage(GenericMessage.class.getName());
assertSame(message, this.resolver.resolveArgument(parameter, message));
}
@SuppressWarnings("unused")
private void handleMessage(
Message<?> wildcardPayload,
Message<Integer> integerPayload,
Message<Number> numberPayload,
Message<? extends Number> anyNumberPayload,
ErrorMessage subClass) {
}
}