Added test for UnicastMessageDispatcher.

spring-integration-core/src/test/java/org/springframework/integration/bus/UnicastMessageDispatcherTests.java

@@ -0,0 +1,58 @@
+/*
+ * Copyright 2002-2007 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.bus;
+
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+
+import org.springframework.integration.channel.PointToPointChannel;
+import org.springframework.integration.endpoint.GenericMessageEndpoint;
+import org.springframework.integration.message.Message;
+import org.springframework.integration.message.StringMessage;
+
+/**
+ * @author Mark Fisher
+ */
+public class UnicastMessageDispatcherTests {
+
+	@Test
+	public void testExactlyOneEndpointReceivesMessage() {
+		PointToPointChannel inputChannel = new PointToPointChannel();
+		PointToPointChannel outputChannel1 = new PointToPointChannel();
+		PointToPointChannel outputChannel2 = new PointToPointChannel();
+		GenericMessageEndpoint endpoint1 = new GenericMessageEndpoint();
+		endpoint1.setDefaultOutputChannelName("output1");
+		endpoint1.setInputChannelName("input");
+		GenericMessageEndpoint endpoint2 = new GenericMessageEndpoint();
+		endpoint2.setDefaultOutputChannelName("output2");
+		endpoint2.setInputChannelName("input");
+		MessageBus bus = new MessageBus();
+		bus.registerChannel("input", inputChannel);
+		bus.registerChannel("output1", outputChannel1);
+		bus.registerChannel("output2", outputChannel2);
+		bus.registerEndpoint("endpoint1", endpoint1);
+		bus.registerEndpoint("endpoint2", endpoint2);
+		bus.start();
+		inputChannel.send(new StringMessage(1, "testing"));
+		Message<?> message1 = outputChannel1.receive(100);
+		Message<?> message2 = outputChannel2.receive(0);
+		bus.stop();
+		assertTrue("exactly one message should be null", message1 == null ^ message2 == null);
+	}
+
+}