BAEL-1907 Created new module spring-testing

testing-modules/spring-testing/README.md

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+### Relevant Articles:
+

testing-modules/spring-testing/pom.xml

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+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>org.baeldung</groupId>
+    <artifactId>spring-testing</artifactId>
+    <version>0.1-SNAPSHOT</version>
+    <name>spring-testing</name>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-java</artifactId>
+    	<version>0.0.1-SNAPSHOT</version>
+    	<relativePath>../../parent-java</relativePath>
+    </parent>
+
+    <dependencies>
+
+        <!-- test scoped -->
+        <dependency>
+            <groupId>org.hamcrest</groupId>
+            <artifactId>java-hamcrest</artifactId>
+            <version>${hamcrest.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter</artifactId>
+            <version>LATEST</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <version>LATEST</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-core</artifactId>
+            <version>LATEST</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-context</artifactId>
+            <version>LATEST</version>
+        </dependency>
+        <dependency>
+            <groupId>org.eclipse.persistence</groupId>
+            <artifactId>javax.persistence</artifactId>
+            <version>2.1.1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.data</groupId>
+            <artifactId>spring-data-jpa</artifactId>
+            <version>LATEST</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <finalName>spring-testing</finalName>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+
+    </build>
+
+    <properties>
+        <!-- testing -->
+        <hamcrest.version>2.0.0.0</hamcrest.version>
+    </properties>
+
+</project>

testing-modules/spring-testing/src/main/java/org/baeldung/mockito/repository/User.java

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+package org.baeldung.mockito.repository;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "users")
+public class User {
+
+    @Id
+    @GeneratedValue
+    private Integer id;
+    private String name;
+    private Integer status;
+
+    public User() {
+    }
+
+    public User(String name, Integer status) {
+        this.name = name;
+        this.status = status;
+    }
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public Integer getStatus() {
+        return status;
+    }
+
+    public void setStatus(Integer status) {
+        this.status = status;
+    }
+}

testing-modules/spring-testing/src/main/java/org/baeldung/mockito/repository/UserRepository.java

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+package org.baeldung.mockito.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository("userRepository")
+public interface UserRepository extends JpaRepository<User, Integer> {
+
+}

testing-modules/spring-testing/src/test/java/org/baeldung/mockito/MockAnnotationUnitTest.java

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+package org.baeldung.mockito;
+
+import org.baeldung.mockito.repository.UserRepository;
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.junit.MockitoJUnitRunner;
+
+@RunWith(MockitoJUnitRunner.class)
+public class MockAnnotationUnitTest {
+    
+    @Mock
+    UserRepository mockRepository;
+
+    @Test
+    public void givenCountMethodMocked_WhenCountInvoked_ThenMockValueReturned() {
+        Mockito.when(mockRepository.count()).thenReturn(123L);
+
+        long userCount = mockRepository.count();
+
+        Assert.assertEquals(123L, userCount);
+        Mockito.verify(mockRepository).count();
+    }
+    
+    @Test
+    public void givenCountMethodOfLocalMockVariableMocked_WhenCountInvoked_ThenMockedValueReturned() {
+        UserRepository localMockRepository = Mockito.mock(UserRepository.class);
+        Mockito.when(localMockRepository.count()).thenReturn(111L);
+
+        long userCount = localMockRepository.count();
+
+        Assert.assertEquals(111L, userCount);
+        Mockito.verify(localMockRepository).count();
+    }
+}

testing-modules/spring-testing/src/test/java/org/baeldung/mockito/MockBeanAnnotationIntegrationTest.java

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+package org.baeldung.mockito;
+
+import org.baeldung.mockito.repository.UserRepository;
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mockito;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.context.ApplicationContext;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+public class MockBeanAnnotationIntegrationTest {
+    
+    @MockBean
+    UserRepository mockRepository;
+    
+    @Autowired
+    ApplicationContext context;
+    
+    @Test
+    public void givenCountMethodMocked_WhenCountInvoked_ThenMockValueReturned() {
+        Mockito.when(mockRepository.count()).thenReturn(123L);
+
+        UserRepository userRepoFromContext = context.getBean(UserRepository.class);
+        long userCount = userRepoFromContext.count();
+
+        Assert.assertEquals(123L, userCount);
+        Mockito.verify(mockRepository).count();
+    }
+}