Android: UnitTest

Question

Need some advice. I have an App. And I need do write some UnitTest. But I really don\'t know what to test. I already test Settings and all preferences, that\'s easy. What else u

Answer 1

Android provides test classes for you to be able to be as exhaustive in your unit testing as you want to be. You can unit test your java components, your android-architecture dependant components, and your workflow as a whole.

In your case, to test sequences between activities, you can use the InstrumentationTestCase class and extend it, and then in your tests, you should use the following methods:

// Prepare a monitor for your activity
Instrumentation instrumentation = getInstrumentation()
Instrumentation.ActivityMonitor monitor = instrumentation.addMonitor(YourClass.class.getName(), null, false);

// Start your activity manually
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setClassName(instrumentation.getTargetContext(), YourClass.class.getName());
        instrumentation.startActivitySync(intent);

// Get the started Activity
Activity currentActivity = getInstrumentation().waitForMonitor(monitor);

Then you can remove the monitor and add another monitor for the next activity you expect to catch in the workflow sequence. With this sequence you can programatically interact and verify sequences of actions that go through multiple activities.