Question

Android provides various packages for testing like

AndroidTestCase
ApplicationTestCase
InstrumentationTestCase
ActivityInstrumentationTestCase2 ActivityTestCase

I need to know how to decide which package is best suitable for testing my app. Some info is provided in this link

http://developer.android.com/reference/android/test/package-summary.html

But I need more clarity on this…

Answer 1

TestCase – Plain old JUnit test case. It can be extended to test utility classes that are not tied to the Android framework.

AndroidTestCase – It extends JUnit’s TestCase. It’s a lighter
testing class compared to
ActivityTestCase. It doesn’t need to
launch an activity to run it. Its
getContext() method allows you to get
an injected context if you need one.
Since you can get a context from this
class, you can inflate your UI objects
to test their behaviors.

ActivityInstrumentationTestCase2 – It’s the newer version of ActivityInstrumentationTestCase. ActivityInstrumentationTestCase is deprecated in Android SDK 1.5. It’s a heavier testing class compared to AndroidTestCase. It provides UI and functional testing for a single activity. You can get an injected activity that you are testing on by calling its getActivity() method. The activity being tested is launched and finished before and after each test.

ActivityUnitTestCase – It gives
the tested activity an isolated
environment. When using it to test an
activity, the activity is not attached
to the system. This gives you more
control over what kind of environment
that you want your activity to be
tested in.

ApplicationTestCase – It provides testing for Application classes. It can be used to test the life cycle of an application.

InstrumentationTestRunner – The runner that runs the Android test
cases.

I just found this..Hope this helps for others…If u want more details like when and how to use, see the APIDemos test application in the samples directory within android SDK.