Should I do unit test in android development?

Issue

I have developed some app when I was a beginner, I was doing manual testing. Should I go for unit testing or instrumentation testing?

Solution

Yes you should do it. There is no excuse to let it slide since Android is providing a nice UI Test Framework Espresso

With simple code like this e.g.

onView(withId(R.id.my_view))            // withId(R.id.my_view) is a ViewMatcher
        .perform(click())               // click() is a ViewAction
        .check(matches(isDisplayed())); // matches(isDisplayed()) is a ViewAssertion

and with the new Espresso Test Recorder you can even record your test cases. It's still in beta, but it creates a handy code snippet which you can base your tests on.

Answered By - Murat Karagöz