BAEL-2201-shreyas-Replacing customer written MockitoExtension class with mockito's own

testing-modules/junit-5/pom.xml

@@ -72,6 +72,13 @@
                 </exclusion>
             </exclusions>
         </dependency>
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-junit-jupiter</artifactId>
+            <version>${mockito.junit.jupiter.version}</version>
+            <scope>test</scope>
+        </dependency>
+
         <dependency>
             <groupId>org.powermock</groupId>
             <artifactId>powermock-api-mockito2</artifactId>
@@ -118,13 +125,13 @@
     </build>
 
     <properties>
-        <junit.jupiter.version>5.2.0</junit.jupiter.version>
+        <junit.jupiter.version>5.3.1</junit.jupiter.version>
+        <mockito.junit.jupiter.version>2.23.0</mockito.junit.jupiter.version>
         <junit.platform.version>1.2.0</junit.platform.version>
         <junit.vintage.version>5.2.0</junit.vintage.version>
         <log4j2.version>2.8.2</log4j2.version>
         <h2.version>1.4.196</h2.version>
-        <mockito.version>2.8.9</mockito.version>
+        <powermock.version>2.0.0-RC.1</powermock.version>
-        <powermock.version>1.7.4</powermock.version>
         <maven-surefire-plugin.version>2.21.0</maven-surefire-plugin.version>
         <exec-maven-plugin.version>1.6.0</exec-maven-plugin.version>
         <spring.version>5.0.1.RELEASE</spring.version>

testing-modules/junit-5/src/test/java/com/baeldung/junit5/mockito/MockitoExtension.java

@@ -1,75 +0,0 @@
-/*
- * Copyright 2015-2016 the original author or authors.
- *
- * All rights reserved. This program and the accompanying materials are
- * made available under the terms of the Eclipse Public License v1.0 which
- * accompanies this distribution and is available at
- *
- * http://www.eclipse.org/legal/epl-v10.html
- */
-
-package com.baeldung.junit5.mockito;
-
-import static org.mockito.Mockito.mock;
-
-import java.lang.reflect.Parameter;
-
-import org.junit.jupiter.api.extension.ExtensionContext;
-import org.junit.jupiter.api.extension.ExtensionContext.Namespace;
-import org.junit.jupiter.api.extension.ExtensionContext.Store;
-import org.junit.jupiter.api.extension.ParameterContext;
-import org.junit.jupiter.api.extension.ParameterResolver;
-import org.junit.jupiter.api.extension.TestInstancePostProcessor;
-import org.mockito.MockitoAnnotations;
-import org.mockito.Mock;
-
-/**
- * {@code MockitoExtension} showcases the {@link TestInstancePostProcessor}
- * and {@link ParameterResolver} extension APIs of JUnit 5 by providing
- * dependency injection support at the field level and at the method parameter
- * level via Mockito 2.x's {@link Mock @Mock} annotation.
- *
- * @since 5.0
- */
-public class MockitoExtension implements TestInstancePostProcessor, ParameterResolver {
-
-    @Override
-    public void postProcessTestInstance(Object testInstance, ExtensionContext context) {
-        MockitoAnnotations.initMocks(testInstance);
-    }
-
-    @Override
-    public boolean supportsParameter(ParameterContext parameterContext, ExtensionContext extensionContext) {
-        return parameterContext.getParameter().isAnnotationPresent(Mock.class);
-    }
-
-    @Override
-    public Object resolveParameter(ParameterContext parameterContext, ExtensionContext extensionContext) {
-        return getMock(parameterContext.getParameter(), extensionContext);
-    }
-
-    private Object getMock(Parameter parameter, ExtensionContext extensionContext) {
-        Class<?> mockType = parameter.getType();
-        Store mocks = extensionContext.getStore(Namespace.create(MockitoExtension.class, mockType));
-        String mockName = getMockName(parameter);
-
-        if (mockName != null) {
-            return mocks.getOrComputeIfAbsent(mockName, key -> mock(mockType, mockName));
-        }
-        else {
-            return mocks.getOrComputeIfAbsent(mockType.getCanonicalName(), key -> mock(mockType));
-        }
-    }
-
-    private String getMockName(Parameter parameter) {
-        String explicitMockName = parameter.getAnnotation(Mock.class).name().trim();
-        if (!explicitMockName.isEmpty()) {
-            return explicitMockName;
-        }
-        else if (parameter.isNamePresent()) {
-            return parameter.getName();
-        }
-        return null;
-    }
-
-}

testing-modules/junit-5/src/test/java/com/baeldung/junit5/mockito/UserServiceUnitTest.java

@@ -3,19 +3,16 @@ package com.baeldung.junit5.mockito;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.fail;
 import static org.mockito.ArgumentMatchers.any;
-import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.*;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
 
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
-import org.junit.platform.runner.JUnitPlatform;
-import org.junit.runner.RunWith;
 import org.mockito.Mock;
 import org.mockito.Mockito;
 import org.mockito.invocation.InvocationOnMock;
+import org.mockito.junit.jupiter.MockitoExtension;
 import org.mockito.stubbing.Answer;
 
 import com.baeldung.junit5.mockito.repository.MailClient;
@@ -25,25 +22,25 @@ import com.baeldung.junit5.mockito.service.DefaultUserService;
 import com.baeldung.junit5.mockito.service.Errors;
 import com.baeldung.junit5.mockito.service.UserService;
 
-@RunWith(JUnitPlatform.class)
 @ExtendWith(MockitoExtension.class)
 public class UserServiceUnitTest {
     
     UserService userService;
     @Mock UserRepository userRepository;
-    
+    @Mock MailClient mailClient;
+
     User user;
     
     @BeforeEach
-    void init(@Mock SettingRepository settingRepository, @Mock MailClient mailClient) {
+    void init(@Mock SettingRepository settingRepository) {
         userService = new DefaultUserService(userRepository, settingRepository, mailClient);
-        when(settingRepository.getUserMinAge()).thenReturn(10);
+        lenient().when(settingRepository.getUserMinAge()).thenReturn(10);
         when(settingRepository.getUserNameMinLength()).thenReturn(4);
-        when(userRepository.isUsernameAlreadyExists(any(String.class))).thenReturn(false);
+        lenient().when(userRepository.isUsernameAlreadyExists(any(String.class))).thenReturn(false);
     }
     
     @Test
-    void givenValidUser_whenSaveUser_thenSucceed(@Mock MailClient mailClient) {
+    void givenValidUser_whenSaveUser_thenSucceed() {
         // Given
         user = new User("Jerry", 12);
         when(userRepository.insert(any(User.class))).then(new Answer<User>() {