几个测试类后关闭浏览器

Question

I work on an automated testing framework and I need to close the browser after passing tests on several test classes.

The package structure of the project is similar to this:

• PackageA
  • SomeTestClass1
  • SomeTestClass2
  • ...
• PackageB
  • SomeOtherTestClass1
  • SomeOtherTestClass2
  • ...

Note: There can be multiple levels of packages inside one another.

If I use @AfterClass or @AfterAll JUnit annotations I have to close the browser at the 'end' of each test class. My framework requires launching the browser (as a static variable) and closing it only one time to speed up execution and avoid losing time for every browser launch and login, as I currently have a big number of tests that need to be run each night.

Is there any possiblity I could achieve this behaviour?

Answer 1

In JUnit 4 , you could use the concept of Rule in conjunction with extending TestWatcher abstract class ( org.junit.rules.TestWatcher ). Hence you won't have to close the browser in a method annotated with @AfterClass .

eg

public class StartFinishTestWatcher extends TestWatcher {
    @Override
    protected void starting(Description description) {
        System.out.println("Starting test: " + description.getDisplayName());
    }

    @Override
    protected void finished(Description description) {
        System.out.println("Finishing test: " + description.getDisplayName());
        // close the browser here
    }
}

Then you would use this class in a RuleChain , in the test class(es) where you want to close the browser.

public class MyTestInWhichIWantBrowserToClose {

    @Rule
    public RuleChain ruleChain = buildTestRuleChain();

    private RuleChain buildTestRuleChain() { // could be made protected and put in a superclass

        return RuleChain.outerRule(new StartFinishTestWatcher());
    }
}

---

In JUnit 5 you could create custom Test Suites and implement BeforeTestExecutionCallback and (in your case) AfterTestExecutionCallback interfaces in one of your base class.

You would then implement the custom logic which decides to close the browser in method public void afterTestExecution(ExtensionContext context) .