Fixes JIRA issue SGF-198 involving a BeanCurrentlyInCreationException when an AsyncEventListener is defined for any AsyncEventQueue and Spring Data GemFire injects the listener into the constructor of the AsyncEventQueueFactoryBean and the AsyncEventListener is using constructor injection to some other arbitrary bean dependency in the Spring application context.

src/test/java/org/springframework/data/gemfire/wan/AsyncEventQueueFactoryBeanTest.java

@@ -0,0 +1,129 @@
+/*
+ * Copyright 2010-2013 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.data.gemfire.wan;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertSame;
+import static org.mockito.Matchers.eq;
+import static org.mockito.Matchers.notNull;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import org.junit.Test;
+import org.springframework.data.gemfire.TestUtils;
+
+import com.gemstone.gemfire.cache.Cache;
+import com.gemstone.gemfire.cache.asyncqueue.AsyncEventListener;
+import com.gemstone.gemfire.cache.asyncqueue.AsyncEventQueue;
+import com.gemstone.gemfire.cache.asyncqueue.AsyncEventQueueFactory;
+
+/**
+ * The AsyncEventQueueFactoryBeanTest class is a test suite of test cases testing the contract and functionality
+ * of the AsyncEventQueueFactoryBean class.
+ * <p/>
+ * @author John Blum
+ * @see org.junit.Test
+ * @see org.mockito.Mockito
+ * @see org.springframework.data.gemfire.wan.AsyncEventQueueFactoryBean
+ * @since 1.3.3
+ */
+public class AsyncEventQueueFactoryBeanTest {
+
+	protected Cache createMockCacheWithAsyncInfrastructure(final String asyncEventQueueId) {
+		Cache mockCache = mock(Cache.class);
+		AsyncEventQueueFactory mockAsynEventQueueFactory = mock(AsyncEventQueueFactory.class);
+		AsyncEventQueue mockAsyncEventQueue = mock(AsyncEventQueue.class);
+
+		when((mockCache.createAsyncEventQueueFactory())).thenReturn(mockAsynEventQueueFactory);
+		when(mockAsynEventQueueFactory.create(eq(asyncEventQueueId), notNull(AsyncEventListener.class)))
+			.thenReturn(mockAsyncEventQueue);
+		when(mockAsyncEventQueue.getId()).thenReturn(asyncEventQueueId);
+
+		return mockCache;
+	}
+
+	protected AsyncEventListener createMockAsyncEventListener() {
+		return mock(AsyncEventListener.class);
+	}
+
+	@Test
+	public void testSetAsyncEventListener() throws Exception {
+		AsyncEventQueueFactoryBean factoryBean = new AsyncEventQueueFactoryBean(
+			createMockCacheWithAsyncInfrastructure("testEventQueue"));
+
+		AsyncEventListener listenerOne = createMockAsyncEventListener();
+
+		factoryBean.setAsyncEventListener(listenerOne);
+
+		assertSame(listenerOne, TestUtils.readField("asyncEventListener", factoryBean));
+
+		AsyncEventListener listenerTwo = createMockAsyncEventListener();
+
+		factoryBean.setAsyncEventListener(listenerTwo);
+
+		assertSame(listenerTwo, TestUtils.readField("asyncEventListener", factoryBean));
+	}
+
+	@Test(expected = IllegalStateException.class)
+	public void testSetAsyncEventListenerAfterAyncEventQueueCreation() throws Exception {
+		String asyncEventQueueId = "testEventQueue";
+
+		AsyncEventQueueFactoryBean factoryBean = new AsyncEventQueueFactoryBean(
+			createMockCacheWithAsyncInfrastructure(asyncEventQueueId));
+
+		factoryBean.setName(asyncEventQueueId);
+
+		AsyncEventListener listenerOne = createMockAsyncEventListener();
+
+		factoryBean.setAsyncEventListener(listenerOne);
+
+		assertSame(listenerOne, TestUtils.readField("asyncEventListener", factoryBean));
+
+		factoryBean.doInit();
+
+		assertNotNull(TestUtils.readField("asyncEventQueue", factoryBean));
+
+		try {
+			factoryBean.setAsyncEventListener(createMockAsyncEventListener());
+		}
+		catch (IllegalStateException expected) {
+			assertEquals("Setting an AsyncEventListener is not allowed once the AsyncEventQueue has been created.",
+				expected.getMessage());
+			assertSame(listenerOne, TestUtils.readField("asyncEventListener", factoryBean));
+			throw expected;
+		}
+	}
+
+	@Test(expected = IllegalArgumentException.class)
+	public void testDoInitWhenAsyncEventListenerIsNull() throws Exception {
+		try {
+			AsyncEventQueueFactoryBean factoryBean = new AsyncEventQueueFactoryBean(
+				createMockCacheWithAsyncInfrastructure("testEventQueue"));
+
+			assertNull(TestUtils.readField("asyncEventListener", factoryBean));
+
+			factoryBean.doInit();
+		}
+		catch (Exception e) {
+			assertEquals("The AsyncEventListener cannot be null.", e.getMessage());
+			throw e;
+		}
+	}
+
+}