Java 我是否可以仅使用powermock+;莫基托+;朱尼特?
我正在使用Junit+Mockito+Powermock编写一个测试 我有一个类似以下的类,我想测试它:Java 我是否可以仅使用powermock+;莫基托+;朱尼特?,java,unit-testing,junit,mockito,powermock,Java,Unit Testing,Junit,Mockito,Powermock,我正在使用Junit+Mockito+Powermock编写一个测试 我有一个类似以下的类,我想测试它: public class MyUtils { public static Object method1() {} //I want to mock this only public static void method2() {} //I want to keep this as is during my test. public static void meth
public class MyUtils {
public static Object method1() {} //I want to mock this only
public static void method2() {} //I want to keep this as is during my test.
public static void method3() {} //I want to keep this as is during my test.
}
我只想模拟method1
,但不想模拟method2
或method3
@RunWith(PowerMockRunner.class)
@PrepareForTest(MyUtils.class)
public class MyTest {
@Before
public void setUpBeforeClass() throws Exception {
PowerMockito.mockStatic(MyUtils.class);
}
@Test
public void test1() throws Exception {
when(MyUtils.method1()).thenReturn(something);
MyUtils.method3(); //method3 is getting mocked with an empty implementation by PowerMockito
}
...
}
我是否可以对一些方法进行模拟,而对一些方法不进行模拟,即在测试期间保留其原始实现?Mockito+Powermock是否可以实现这一点
我的测试看起来可能不是很优雅,但在这里发布之前,我已经简化了我的用例
谢谢。如果您想要在实际实现中保留的方法比需要模拟的方法多得多(尤其是在您的情况下只有一种),那么我会选择spy而不是mock:
import static org.powermock.api.mockito.PowerMockito.spy;
@RunWith(PowerMockRunner.class)
@PrepareForTest(MyUtils.class)
public class MyTest {
@Before
public void setUpBeforeClass() throws Exception {
spy(MyUtils.class);
}
@Test
public void test1() throws Exception {
doReturn(something).when(MyUtils.class, "method1");
MyUtils.method3(); // this will be a real call
}
...
}
现在,除了
method1
之外的所有方法都将通过实际实现进行调用。是的,可以使用Powermock和JUnit模拟静态方法,如下所示:
import static org.junit.Assert.*;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;
import static org.powermock.api.mockito.PowerMockito.*;
@RunWith(PowerMockRunner.class)
@PrepareForTest(IDGenerator.class)
public class UserDAOTest {
@Test
public void createShouldReturnAUserId() {
UserDAO dao = new UserDAO();
mockStatic(IDGenerator.class);
when(IDGenerator.generateID()).thenReturn(1);
int result = dao.create(new User());
assertEquals(1, result);
verifyStatic();
}
}
public final class IDGenerator {
static int i;
public static final int generateID() {
return i++;
}
}
public class UserDAO {
public int create(User user){
int id = IDGenerator.generateID();
//Save the user object to the db
return id;
}
}
public class User {
private int id;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
}
希望有帮助 新版本的Mockito可能会复制我们也可以模拟静态方法。有人知道如何仅使用JUnit 5+Mockito内联3.7.7来解决这个问题吗?请记住,如果mock是类且方法是静态的,则不能使用标准的doX().when(mock).method。请使用上述安装程序的版本。