Learning Android™ Application Programming: A Hands-On Guide to Building Android Applications

Increasing Test Coverage

You can add more tests to increase the test coverage of the TimerState class. Here’s how.

1. Create a new test named timerStopped, as shown in Listing 10.6, that checks the class properties after the timer has been started and stopped.

Listing 10.6 Testing That the Timer Has Started and Time Has Elapsed

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@Testpublic void timerStopped() {    timer.start();    assertTrue("IsRunning is true", timer.isRunning() == true);    delay();    assertTrue("ElapsedTime is not 0", timer.elapsedTime() > 0);    timer.stop();    assertTrue("IsRunning is false", timer.isRunning() == false);    assertTrue("ElapsedTime is not 0", timer.elapsedTime() > 0);}

2. Create a new test that checks the class properties ...