INT-912 Channels with "datatype" now delegate to the "conversionService" bean if available.

org.springframework.integration/src/test/java/org/springframework/integration/channel/DatatypeChannelTests.java

@@ -0,0 +1,86 @@
+/*
+ * 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.integration.channel;
+
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import java.util.Date;
+
+import org.junit.Test;
+
+import org.springframework.integration.core.MessageChannel;
+import org.springframework.integration.core.MessagingException;
+import org.springframework.integration.message.ErrorMessage;
+import org.springframework.integration.message.GenericMessage;
+import org.springframework.integration.message.MessageDeliveryException;
+import org.springframework.integration.message.StringMessage;
+
+/**
+ * @author Mark Fisher
+ * @since 2.0
+ */
+public class DatatypeChannelTests {
+
+	@Test
+	public void supportedType() {
+		MessageChannel channel = createChannel(String.class);
+		assertTrue(channel.send(new StringMessage("test")));
+	}
+
+	@Test(expected = MessageDeliveryException.class)
+	public void unsupportedTypeAndNoConversionService() {
+		MessageChannel channel = createChannel(Integer.class);
+		channel.send(new StringMessage("test"));
+	}
+
+	@Test
+	public void multipleTypes() {
+		MessageChannel channel = createChannel(String.class, Integer.class);
+		assertTrue(channel.send(new StringMessage("test1")));
+		assertTrue(channel.send(new GenericMessage<Integer>(2)));
+		Exception exception = null;
+		try {
+			channel.send(new GenericMessage<Date>(new Date()));
+		}
+		catch (MessageDeliveryException e) {
+			exception = e;
+		}
+		assertNotNull(exception);
+	}
+
+	@Test
+	public void subclassOfAcceptedType() {
+		MessageChannel channel = createChannel(RuntimeException.class);
+		assertTrue(channel.send(new ErrorMessage(new MessagingException("test"))));
+	}
+
+	@Test(expected = MessageDeliveryException.class)
+	public void superclassOfAcceptedTypeNotAccepted() {
+		MessageChannel channel = createChannel(RuntimeException.class);
+		channel.send(new ErrorMessage(new Exception("test")));
+	}
+
+
+	private static QueueChannel createChannel(Class<?> ... datatypes) {
+		QueueChannel channel = new QueueChannel();
+		channel.setBeanName("testChannel");
+		channel.setDatatypes(datatypes);
+		return channel;
+	}
+
+}