code examples for @DataJpaTest

spring-boot/spring-boot-testing/README.md

@@ -4,3 +4,4 @@
 * [Structuring and Testing Modules and Layers with Spring Boot](https://reflectoring.io/testing-verticals-and-layers-spring-boot/)
 * [All You Need To Know About Unit Testing with Spring Boot](https://reflectoring.io/unit-testing-spring-boot/)
 * [All You Need To Know About Testing Web Controllers with Spring Boot](https://reflectoring.io/spring-boot-web-controller-test/)
+* [All You Need To Know About Testing JPA Queries with Spring Boot](https://reflectoring.io/spring-boot-data-jpa-test/)

spring-boot/spring-boot-testing/build.gradle

@@ -27,6 +27,10 @@ repositories {
 dependencies {
 	compile('org.springframework.boot:spring-boot-starter-data-jpa')
 	compile('org.springframework.boot:spring-boot-starter-web')
+    compile('org.flywaydb:flyway-core')
+    compile('org.liquibase:liquibase-core')
+	compile('com.github.springtestdbunit:spring-test-dbunit:1.3.0')
+	compile('org.dbunit:dbunit:2.6.0')
 	compileOnly('org.projectlombok:lombok')
 	runtime('com.h2database:h2')
 	testCompile('org.springframework.boot:spring-boot-starter-test')

spring-boot/spring-boot-testing/src/main/java/io/reflectoring/testing/domain/User.java

@@ -1,19 +1,14 @@
 package io.reflectoring.testing.domain;
 
-import javax.persistence.Entity;
-import javax.persistence.Id;
-
 import java.time.LocalDateTime;
 
 import lombok.AllArgsConstructor;
 import lombok.Data;
 
-@Entity
 @Data
 @AllArgsConstructor
 public class User {
 
-  @Id
   private Long id;
   private String name;
   private String email;

spring-boot/spring-boot-testing/src/main/java/io/reflectoring/testing/persistence/PersistenceAdapter.java

@@ -9,14 +9,14 @@ import org.springframework.stereotype.Component;
 @RequiredArgsConstructor
 public class PersistenceAdapter implements SaveUserPort {
 
-  private final UserEntityRepository userEntityRepository;
+  private final UserRepository userRepository;
 
   @Override
   public Long saveUser(User user) {
     UserEntity userEntity = new UserEntity(
             user.getName(),
             user.getEmail());
-    UserEntity savedUserEntity = userEntityRepository.save(userEntity);
+    UserEntity savedUserEntity = userRepository.save(userEntity);
     return savedUserEntity.getId();
   }
 }

spring-boot/spring-boot-testing/src/main/java/io/reflectoring/testing/persistence/UserEntity.java

@@ -1,19 +1,25 @@
 package io.reflectoring.testing.persistence;
 
 import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
 import javax.persistence.Id;
+import javax.persistence.Table;
 
 import java.time.LocalDateTime;
 
 import lombok.AllArgsConstructor;
 import lombok.Data;
+import lombok.NoArgsConstructor;
 
 @Entity
 @Data
 @AllArgsConstructor
+@NoArgsConstructor
+@Table(name = "user")
 public class UserEntity {
 
   @Id
+  @GeneratedValue
   private Long id;
   private String name;
   private String email;

spring-boot/spring-boot-testing/src/main/java/io/reflectoring/testing/persistence/UserEntityRepository.java

@@ -1,7 +0,0 @@
-package io.reflectoring.testing.persistence;
-
-
-import org.springframework.data.repository.CrudRepository;
-
-public interface UserEntityRepository extends CrudRepository<UserEntity, Long> {
-}

spring-boot/spring-boot-testing/src/main/java/io/reflectoring/testing/persistence/UserRepository.java

@@ -0,0 +1,18 @@
+package io.reflectoring.testing.persistence;
+
+
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.data.repository.query.Param;
+
+interface UserRepository extends CrudRepository<UserEntity, Long> {
+
+  UserEntity findByName(String name);
+
+  @Query("select u from UserEntity u where u.name = :name")
+  UserEntity findByNameCustomQuery(@Param("name") String name);
+
+  @Query(value = "select * from user as u where u.name = :name", nativeQuery = true)
+  UserEntity findByNameNativeQuery(@Param("name") String name);
+
+}

spring-boot/spring-boot-testing/src/main/java/io/reflectoring/testing/web/FieldValidationError.java

@@ -1,7 +1,6 @@
 package io.reflectoring.testing.web;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
-import lombok.AllArgsConstructor;
 import lombok.Data;
 
 @Data

spring-boot/spring-boot-testing/src/test/java/io/reflectoring/testing/persistence/SpringDbUnitTest.java

@@ -0,0 +1,41 @@
+package io.reflectoring.testing.persistence;
+
+import com.github.springtestdbunit.TransactionDbUnitTestExecutionListener;
+import com.github.springtestdbunit.annotation.DatabaseSetup;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+import org.springframework.test.context.TestExecutionListeners;
+import org.springframework.test.context.TestPropertySource;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
+import org.springframework.test.context.junit4.SpringRunner;
+import org.springframework.test.context.support.DependencyInjectionTestExecutionListener;
+import org.springframework.test.context.support.DirtiesContextTestExecutionListener;
+import static org.assertj.core.api.Java6Assertions.*;
+
+@ExtendWith(SpringExtension.class)
+@DataJpaTest
+@TestPropertySource(properties = {
+        "spring.jpa.hibernate.ddl-auto=create-drop",
+        "spring.liquibase.enabled=false",
+        "spring.flyway.enabled=false"
+})
+@TestExecutionListeners({
+        DependencyInjectionTestExecutionListener.class,
+        TransactionDbUnitTestExecutionListener.class
+})
+class SpringDbUnitTest {
+
+  @Autowired
+  private UserRepository userRepository;
+
+  @Test
+  @DatabaseSetup("createUser.xml")
+  void whenInitializedByDbUnit_thenFindsByName() {
+    UserEntity user = userRepository.findByName("Zaphod Beeblebrox");
+    assertThat(user).isNotNull();
+  }
+
+}

spring-boot/spring-boot-testing/src/test/java/io/reflectoring/testing/persistence/SqlTest.java

@@ -0,0 +1,31 @@
+package io.reflectoring.testing.persistence;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+import org.springframework.test.context.TestPropertySource;
+import org.springframework.test.context.jdbc.Sql;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
+import static org.assertj.core.api.Java6Assertions.*;
+
+@ExtendWith(SpringExtension.class)
+@DataJpaTest
+@TestPropertySource(properties = {
+        "spring.jpa.hibernate.ddl-auto=create-drop",
+        "spring.liquibase.enabled=false",
+        "spring.flyway.enabled=false"
+})
+class SqlTest {
+
+  @Autowired
+  private UserRepository userRepository;
+
+  @Test
+  @Sql("createUser.sql")
+  void whenInitializedByDbUnit_thenFindsByName() {
+    UserEntity user = userRepository.findByName("Zaphod Beeblebrox");
+    assertThat(user).isNotNull();
+  }
+
+}

spring-boot/spring-boot-testing/src/test/resources/io/reflectoring/testing/persistence/createUser.sql

@@ -0,0 +1,7 @@
+INSERT INTO USER 
+            (id, 
+             NAME, 
+             email) 
+VALUES      (1, 
+             'Zaphod Beeblebrox', 
+             'zaphod@galaxy.net'); 

spring-boot/spring-boot-testing/src/test/resources/io/reflectoring/testing/persistence/createUser.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<dataset>
+    <user
+        id="1"
+        name="Zaphod Beeblebrox"
+        email="zaphod@galaxy.net"
+    />
+</dataset>