Add Integration Tests testing and asserting the publishing of Apache Geode cache lifecycle events through the Spring container (using the ApplicationEventPublisher with custom cache ApplicationEvents).

spring-data-geode-test/src/test/java/org/springframework/data/gemfire/tests/CacheLifecycleListenerIntegrationTests.java

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+/*
+ *  Copyright 2019 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
+ *
+ *       https://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.tests;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.ArgumentMatchers.argThat;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import org.apache.geode.cache.GemFireCache;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.ApplicationEvent;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.event.EventListener;
+import org.springframework.data.gemfire.config.annotation.ClientCacheApplication;
+import org.springframework.data.gemfire.tests.extensions.spring.context.annotation.DependencyOf;
+import org.springframework.data.gemfire.tests.integration.IntegrationTestsSupport;
+import org.springframework.stereotype.Component;
+import org.springframework.test.annotation.DirtiesContext;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringRunner;
+
+/**
+ * Integration Tests testing and asserting {@link GemFireCache} lifecycle events published as
+ * {@link ApplicationEvent ApplicationEvents} in a Spring context.
+ *
+ * @author John Blum
+ * @see org.junit.Test
+ * @see org.mockito.Mockito
+ * @see org.apache.geode.cache.GemFireCache
+ * @see org.springframework.context.event.EventListener
+ * @see org.springframework.data.gemfire.tests.integration.IntegrationTestsSupport
+ * @see org.springframework.test.context.ContextConfiguration
+ * @see org.springframework.test.context.junit4.SpringRunner
+ * @since 0.0.23
+ */
+@RunWith(SpringRunner.class)
+@ContextConfiguration
+@SuppressWarnings("unused")
+public class CacheLifecycleListenerIntegrationTests extends IntegrationTestsSupport {
+
+	private static GemFireCache staticCache;
+	private static TestCacheLifecycleListener staticListener;
+
+	@Autowired
+	private GemFireCache cache;
+
+	@Autowired
+	private TestCacheLifecycleListener listener;
+
+	@Before
+	public void setup() {
+
+		assertThat(this.cache).isNotNull();
+		assertThat(this.cache.isClosed()).isFalse();
+		assertThat(this.cache.getName()).isEqualTo("CacheLifecycleListenerIntegrationTests");
+		assertThat(this.listener).isNotNull();
+
+		staticCache = this.cache;
+		staticListener = this.listener;
+	}
+
+	@Test
+	@DirtiesContext
+	public void verifyCacheCreatedEventFired() {
+
+		verify(this.listener, times(1)).handleCacheCreated(argThat(cacheCreatedEvent -> {
+
+			assertThat(cacheCreatedEvent).isNotNull();
+			assertThat(cacheCreatedEvent.getCache()).isEqualTo(this.cache);
+
+			return true;
+		}));
+	}
+
+	@AfterClass
+	public static void verifyCacheClosedEventFired() {
+
+		assertThat(staticCache).isNotNull();
+		assertThat(staticListener).isNotNull();
+
+		verify(staticListener, times(1)).handleCacheClosed(argThat(cacheClosedEvent -> {
+
+			assertThat(cacheClosedEvent).isNotNull();
+			assertThat(cacheClosedEvent.getCache()).isEqualTo(staticCache);
+
+			return true;
+		}));
+	}
+
+	@ClientCacheApplication(name = "CacheLifecycleListenerIntegrationTests")
+	static class TestConfiguration {
+
+		@Bean
+		TestCacheLifecycleListener cacheLifecycleListener() {
+			return spy(new TestCacheLifecycleListener());
+		}
+	}
+
+	@Component
+	@DependencyOf("gemfireCache")
+	static class TestCacheLifecycleListener {
+
+		@EventListener(CacheCreatedEvent.class)
+		public void handleCacheCreated(CacheCreatedEvent event) {
+			assertThat(event).isNotNull();
+		}
+
+		@EventListener(CacheClosedEvent.class)
+		public void handleCacheClosed(CacheClosedEvent event) {
+			assertThat(event).isNotNull();
+		}
+	}
+}