Add Integration Tests covering the Counter Service appliaction in the Spring Geode Sample for Look-Aside Caching.

spring-geode-samples/caching/look-aside/spring-geode-samples-caching-lookaside.gradle

@@ -17,6 +17,12 @@ dependencies {
 		exclude group: "org.apache.logging.log4j", module: "log4j-to-slf4j"
 	}
 
+	testCompile("org.springframework.boot:spring-boot-starter-test") {
+		exclude group: "org.apache.logging.log4j", module: "log4j-to-slf4j"
+	}
+
+	testCompile "org.springframework.data:spring-data-geode-test"
+
 }
 
 bootJar {

spring-geode-samples/caching/look-aside/src/test/java/example/app/caching/lookaside/CounterServiceApplicationIntegrationTests.java

@@ -0,0 +1,79 @@
+/*
+ * 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 example.app.caching.lookaside;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import javax.annotation.Resource;
+
+import org.apache.geode.cache.Region;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.data.gemfire.tests.integration.IntegrationTestsSupport;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import example.app.caching.lookaside.service.CounterService;
+
+/**
+ * Integration Tests for the Counter Service application.
+ *
+ * @author John Blum
+ * @see org.junit.Test
+ * @see org.apache.geode.cache.Region
+ * @see org.springframework.boot.test.context.SpringBootTest
+ * @see org.springframework.data.gemfire.tests.integration.IntegrationTestsSupport
+ * @see org.springframework.test.context.junit4.SpringRunner
+ * @see example.app.caching.lookaside.service.CounterService
+ * @since 1.1.0
+ */
+// tag::class[]
+@RunWith(SpringRunner.class)
+@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.MOCK)
+@SuppressWarnings("unused")
+public class CounterServiceApplicationIntegrationTests extends IntegrationTestsSupport {
+
+	@Autowired
+	private CounterService counterService;
+
+	@Resource(name = "Counters")
+	private Region<String, Long> counters;
+
+	@Before
+	public void setup() {
+
+		assertThat(this.counterService).isNotNull();
+		assertThat(this.counters).isNotNull();
+		assertThat(this.counters.getName()).isEqualTo("Counters");
+		assertThat(this.counters).isEmpty();
+	}
+
+	@Test
+	public void counterServiceCachesCounts() {
+
+		for (int count = 1; count < 10; count++) {
+			assertThat(this.counterService.getCount("TestCounter")).isEqualTo(count);
+		}
+
+		assertThat(this.counterService.getCachedCount("TestCounter")).isEqualTo(9L);
+		assertThat(this.counterService.getCachedCount("TestCounter")).isEqualTo(9L);
+		assertThat(this.counterService.getCachedCount("MockCounter")).isEqualTo(1L);
+		assertThat(this.counterService.getCachedCount("MockCounter")).isEqualTo(1L);
+	}
+}
+// end::class[]