Junit 5 对属性测试执行测试 class

Question

Hi i got an abstract BaseTest and a second with 2 attribute implementation of this BaseTest

I want to call all @Test on attribute class.

some Code:

public abstract class BaseTest<T> {

 public abstract T getInstance();
@BeforeEach
 public void setup(){
   this.instance = getInstance();
 }
@Test
all test methods ....

I want to create a second class with 2 implementation of this BaseTest like

class TwoImplOfBaseTest {
private BaseTest<Integer> testA;
private BaseTest<String> testB;

 @Test
 public void testAll(){
 //write something like testA.doAllTest();
     //write something like testB.doAllTest();

}

thanks for reading

Answer 1

I think you are over complicating it. If i understand correctly you have BaseTest class because of common test cases between A and B. @Test, and almost all other junit annotations, is inherited from super classes, unless the method is overridden. In this case all you need is creating concrete implementations of BaseTest. JUnit will initialize test class instances, run all @Test methods, etc.

public class TestA extends BaseTest<Integer> {
  //init stuff if needed
}

And other class

public class TestB extends BaseTest<String> {
  //init stuff if needed
}

And that's it, the junit runner will run all @Test methods from BaseTest for TestA and then for TestB.

Answer 2

Is your goal to run all annotated @Test methods inside multiple classes?

public void runAll() {
    LauncherDiscoveryRequest request = LauncherDiscoveryRequestBuilder.request()
      .selectors(selectPackage("com.package.where.your.test.classes.are"))
      .filters(includeClassNamePatterns(".*Test"))
      .build();
    Launcher launcher = LauncherFactory.create();
    TestPlan testPlan = launcher.discover(request);
    launcher.registerTestExecutionListeners(listener);
    launcher.execute(request);
}

RunJUnit5TestsFromJava runner = new RunJUnit5TestsFromJava();
    runner.runAll();

    TestExecutionSummary summary = runner.listener.getSummary();
    summary.printTo(new PrintWriter(System.out));
}

---

To run a single Test class:

public class RunJUnit5TestsFromJava {
    SummaryGeneratingListener listener = new SummaryGeneratingListener();

    public void runOne() {
        LauncherDiscoveryRequest request = LauncherDiscoveryRequestBuilder.request()
          .selectors(selectClass(FirstUnitTest.class))
          .build();
        Launcher launcher = LauncherFactory.create();
        TestPlan testPlan = launcher.discover(request);
        launcher.registerTestExecutionListeners(listener);
        launcher.execute(request);
    }
    // main method...
}

Reference: https://www.baeldung.com/junit-tests-run-programmatically-from-java