junit5

Simulation of Service using Mockito 2 leads to stubbing error

by

Since Mockito 2.20 it is also possible, to add lenient() locally @ExtendWith(MockitoExtension.class) public class MockitoExample { static abstract class TestClass { public abstract int booleanMethod(boolean arg); } @Mock TestClass testClass; @BeforeEach public void beforeEach() { lenient().when(testClass.booleanMethod(eq(true))).thenReturn(1); lenient().when(testClass.booleanMethod(eq(false))).thenReturn(2); } @Test public void test() { assertEquals(1,testClass.booleanMethod(true)); assertEquals(2,testClass.booleanMethod(false)); } }

Junit 5 with Spring Boot: When to use @ExtendWith Spring or Mockito?

by

What is a Junit Extension The purpose of Junit 5 extensions is to extend the behavior of test classes or methods source Read on Junit 5 Extension Model & @ExtendWith annotation :here SpringExtension SpringExtension integrates the Spring TestContext Framework into JUnit 5’s Jupiter programming model. public class SpringExtension extends Object implements BeforeAllCallback, AfterAllCallback, TestInstancePostProcessor, BeforeEachCallback, … Read more

What use is @TestInstance annotation in JUnit 5?

by

I think the docs provide a useful summary: If you would prefer that JUnit Jupiter execute all test methods on the same test instance, simply annotate your test class with @TestInstance(Lifecycle.PER_CLASS). When using this mode, a new test instance will be created once per test class. Thus, if your test methods rely on state stored … Read more

Cannot create Launcher without at least one TestEngine; consider adding an engine implementation JAR to the classpath in Junit 5

by

Mixing ALPHA snapshot artifacts (i.e., org.junit:junit5-api:5.0.0-SNAPSHOT) with M2 artifacts (i.e., org.junit.platform:junit-platform-surefire-provider:1.0.0-M2), won’t work. The Maven section in the user guide suggests to check out the pom.xml from the junit5-maven-consumer project. If you follow that example, you will end up with something like the following. <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <java.version>1.8</java.version> <junit.jupiter.version>5.0.0-M2</junit.jupiter.version> <junit.platform.version>1.0.0-M2</junit.platform.version> </properties> <build> <plugins> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>3.1</version> … Read more