Record time it takes JUnit tests to run

Question

I would like to record how long it takes my JUnit test to run programmatically. I have a large number of tests in various test classes, and I would like to find out how long ea

Answer 1

In addition to existing answers, you can use a rule for test name along with Before and After methods to display method name on log. Like this:

public class ImageSavingTest {
    @Rule
    public TestName name = new TestName();

    private long start;

    @Before
    public void start() {
        start = System.currentTimeMillis();
    }

    @After
    public void end() {
        System.out.println("Test " + name.getMethodName() + " took " + (System.currentTimeMillis() - start) + " ms");
    }

    @Test
    public void foobar() {
        // test code here
    }
}

Will output:

Test foobar took 1828 ms