Java – is there a way to start and stop recording multiline statements and execution time?

Suppose I have a unit test like this:

@Test
public void testSomething(){
    Car car = new Car();
    car.setColor("blue");
    car.setSize("big");
}

I want to see how long it takes to execute a statement. Is there a "log with timer" function, as shown below, to record each statement it has executed (and its time spent)?

@Test
public void testSomething(){
    logWithTimer.start();
    Car car = new Car();
    car.setColor("blue");
    car.setSize("big");
    logWithTimer.finish();
}

So when I run the above unit test, the output will be as follows:

15:23:456 Car car = new Car();
15:23:470 car.setColor("blue");
15:23:500 car.setSize("big");

Solution

Take a look at JUnit 5 with timing extension. It may be what you need: http://junit.org/junit5/docs/current/user-guide/#extensions -lifecycle-callbacks-timing-extension

You can use annotations to make JUnit display timing data about test methods in this class