junit5

问题 How can I use injection with Mockito and JUnit 5? In JUnit4 I can just use the @RunWith(MockitoJUnitRunner.class) Annotation. In JUnit5 is no @RunWith Annotation? 回答1: There are different ways to use Mockito - I'll go through them one by one. Manually Creating mocks manually with Mockito::mock works regardless of the JUnit version (or test framework for that matter). Annotation Based Using the @Mock-annotation and the corresponding call to MockitoAnnotations::initMocks to create mocks works

问题 Is there a better way to assert that a method throws an exception in JUnit 5? Currently, I have to use an @Rule in order to verify that my test throws an exception, but this doesn\'t work for the cases where I expect multiple methods to throw exceptions in my test. 回答1: You can use assertThrows(), which allows you to test multiple exceptions within the same test. With support for lambdas in Java 8, this is the canonical way to test for exceptions in JUnit. Per the JUnit docs: import static

问题 I wrote a simple test method with JUnit 5: public class SimlpeTest { @Test @DisplayName(\"Some description\") void methodName() { // Testing logic for subject under test } } But when I run mvn test , I got: ------------------------------------------------------- T E S T S ------------------------------------------------------- Running SimlpeTest Tests run: 0, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.001 sec Results : Tests run: 0, Failures: 0, Errors: 0, Skipped: 0 Somehow,

问题 What is the main difference between @Before and @BeforeClass and in JUnit 5 @BeforeEach and @BeforeAll @After and @AfterClass According to the JUnit Api @Before is used in the following case: When writing tests, it is common to find that several tests need similar objects created before they can run. Whereas @BeforeClass can be used to establish a database connection. But couldn\'t @Before do the same? 回答1: The code marked @Before is executed before each test, while @BeforeClass runs once