Add MongoDbSourceModuleTests

spring-xd-dirt/src/test/java/org/springframework/xd/dirt/stream/MongoDbSourceModuleTests.java

@@ -0,0 +1,97 @@
+/*
+ * Copyright 2016 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.xd.dirt.stream;
+
+import static org.hamcrest.Matchers.instanceOf;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
+
+import java.net.UnknownHostException;
+
+import org.junit.AssumptionViolatedException;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import org.springframework.data.mongodb.core.MongoTemplate;
+import org.springframework.data.mongodb.core.SimpleMongoDbFactory;
+import org.springframework.messaging.Message;
+import org.springframework.messaging.MessagingException;
+
+import com.mongodb.DBObject;
+import com.mongodb.Mongo;
+import com.mongodb.MongoClient;
+import com.mongodb.MongoClientOptions;
+import com.mongodb.ServerAddress;
+import com.mongodb.util.JSON;
+
+/**
+ * @author Artem Bilan
+ * @since 1.3.2
+ */
+public class MongoDbSourceModuleTests extends StreamTestSupport {
+
+	private static final String STREAM = "mongoDbContents";
+
+	private static final String DB = "test";
+
+	private static final String COLLECTION = "testXdCollection";
+
+	@BeforeClass
+	public static void setup() {
+		try {
+			MongoClientOptions options = new MongoClientOptions.Builder()
+					.connectTimeout(100)
+					.build();
+
+			Mongo mongo = new MongoClient(ServerAddress.defaultHost(), options);
+			mongo.getDatabaseNames();
+		}
+		catch (Exception e) {
+			throw new AssumptionViolatedException("Skipping test: MongoDb is not available");
+		}
+	}
+
+	@Test
+	public void testReadDataFromMongoDb() throws UnknownHostException {
+		deployStream(STREAM,
+				"mongodb --collectionName=" + COLLECTION + " --databaseName=" + DB + " --fixedDelay=0 | sink");
+		MessageTest test = new MessageTest() {
+
+			@Override
+			public void test(Message<?> message) throws MessagingException {
+				assertThat(message.getPayload(), instanceOf(DBObject.class));
+				DBObject payload = (DBObject) message.getPayload();
+
+				assertEquals("XD", payload.get("name"));
+				assertEquals("SpringIO", payload.get("category"));
+			}
+
+		};
+
+		StreamTestSupport.getSinkInputChannel(STREAM).subscribe(test);
+
+		MongoTemplate mongoTemplate = new MongoTemplate(new SimpleMongoDbFactory(new MongoClient(), DB));
+
+		mongoTemplate.save(JSON.parse("{'name' : 'XD', 'category' : 'SpringIO'}"), COLLECTION);
+
+		test.waitForCompletion(10000);
+		undeployStream(STREAM);
+		assertTrue(test.getMessageHandled());
+	}
+
+}