Added simple integration test.

pom.xml

@@ -77,6 +77,12 @@
 			<artifactId>mapstruct-jdk8</artifactId>
 			<version>1.3.0.Final</version>
 		</dependency>
+		<dependency>
+			<groupId>com.h2database</groupId>
+			<artifactId>h2</artifactId>
+			<scope>test</scope>
+			<version>1.4.199</version>
+		</dependency>
 
 		<dependency>
 			<groupId>org.webjars</groupId>

src/test/java/com/github/prominence/carrepair/CarRepairApplicationTests.java

@@ -1,17 +0,0 @@
-package com.github.prominence.carrepair;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.test.context.junit4.SpringRunner;
-
-@RunWith(SpringRunner.class)
-@SpringBootTest
-public class CarRepairApplicationTests {
-
-	@Test
-	public void contextLoads() {
-	}
-
-}
-

src/test/java/com/github/prominence/carrepair/ClientRepositoryIntegrationTest.java

@@ -0,0 +1,39 @@
+package com.github.prominence.carrepair;
+
+import com.github.prominence.carrepair.model.domain.Client;
+import com.github.prominence.carrepair.repository.ClientRepository;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+import org.springframework.boot.test.autoconfigure.orm.jpa.TestEntityManager;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+@RunWith(SpringRunner.class)
+@DataJpaTest
+public class ClientRepositoryIntegrationTest {
+
+	@Autowired
+	private TestEntityManager entityManager;
+
+	@Autowired
+	private ClientRepository clientRepository;
+
+	@Test
+	public void whenFindById_thenReturnClient() {
+		// given
+		Client client = new Client("firstName", "middleName", "lastName", "123456789");
+		entityManager.persist(client);
+		entityManager.flush();
+
+		// when
+		Client found = clientRepository.findById(client.getId()).get();
+
+		// then
+		assertThat(found.hashCode()).isEqualTo(client.hashCode());
+	}
+
+}
+