Add an example of Unit Testing with Apache Geode using Spring Boot Test and STDG frameworks in a Spring context for the 'Testing' chapter.

spring-geode-docs/src/test/java/example/test/unit/SpringBootApacheGeodeUnitTest.java

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+/*
+ * Copyright 2020 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.test.unit;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.context.annotation.Profile;
+import org.springframework.data.annotation.Id;
+import org.springframework.data.gemfire.config.annotation.EnableEntityDefinedRegions;
+import org.springframework.data.gemfire.mapping.annotation.Region;
+import org.springframework.data.gemfire.tests.integration.IntegrationTestsSupport;
+import org.springframework.data.gemfire.tests.mock.annotation.EnableGemFireMockObjects;
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.test.annotation.DirtiesContext;
+import org.springframework.test.context.ActiveProfiles;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import lombok.ToString;
+
+/**
+ * Unit Test using Spring Boot with Apache Geode.
+ *
+ * @author John Blum
+ * @see org.junit.Test
+ * @see org.springframework.boot.autoconfigure.SpringBootApplication
+ * @see org.springframework.boot.test.context.SpringBootTest
+ * @see org.springframework.context.annotation.Profile
+ * @see org.springframework.data.gemfire.tests.integration.IntegrationTestsSupport
+ * @see org.springframework.data.gemfire.tests.mock.annotation.EnableGemFireMockObjects
+ * @see org.springframework.test.context.ActiveProfiles
+ * @see org.springframework.test.context.junit4.SpringRunner
+ * @since 1.5.0
+ */
+@ActiveProfiles("spring-geode-docs-unit-test")
+@DirtiesContext
+@RunWith(SpringRunner.class)
+@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.NONE)
+@SuppressWarnings("unused")
+public class SpringBootApacheGeodeUnitTest extends IntegrationTestsSupport {
+
+	@Autowired
+	private UserRepository userRepository;
+
+	@Test
+	public void saveAndFindUserIsSuccessful() {
+
+		User jonDoe = User.as("jonDoe");
+
+		assertThat(this.userRepository.save(jonDoe)).isNotNull();
+
+		User jonDoeFoundById = this.userRepository.findById(jonDoe.getName()).orElse(null);
+
+		assertThat(jonDoeFoundById).isEqualTo(jonDoe);
+	}
+
+	@SpringBootApplication
+	@EnableGemFireMockObjects
+	@EnableEntityDefinedRegions(basePackageClasses = User.class)
+	@Profile("spring-geode-docs-unit-test")
+	static class TestConfiguration { }
+
+}
+
+@Getter
+@ToString
+@EqualsAndHashCode
+@RequiredArgsConstructor(staticName = "as")
+@Region("Users")
+class User {
+
+	@Id
+	@lombok.NonNull
+	private String name;
+
+}
+
+interface UserRepository extends CrudRepository<User, String> { }