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 regardless of the JUnit version (or test … Read more
Run the Gradle build with a command line argument –warning-mode=all to see what exactly the deprecated features are. It will give you a detailed description of found issues with links to the Gradle docs for instructions how to fix your build. Adding –stacktrace to that, you will also be able to pinpoint where the warning … Read more
The maven-surefire-plugin, as of today, does not have full support of JUnit 5. There is an open issue about adding this support in SUREFIRE-1206. As such, you need to use a custom provider. One has already been developed by the JUnit team; from the user guide, you need to add the junit-platform-surefire-provider provider and the … Read more
The code marked @Before is executed before each test, while @BeforeClass runs once before the entire test fixture. If your test class has ten tests, @Before code will be executed ten times, but @BeforeClass will be executed only once. In general, you use @BeforeClass when multiple tests need to share the same computationally expensive setup … Read more
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 org.junit.jupiter.api.Assertions.assertThrows; @Test void exceptionTesting() { MyException thrown = assertThrows( MyException.class, () -> myObject.doThing(), “Expected doThing() to … Read more