Create sample activity test
Create sample fragment test
Use android-fest assertions
Switch to android-unit-test plugin. It allows to run single test and works perfectly with AS.
See https://github.com/JCAndKSolutions/android-unit-test
Add mockito to dependencies. Add new sample test for Result fragment.
Add Dagger for dependency injection
Move object graph mangling to ResultFragment to cut loose this fragment from activity.
No I can mock fragment's netcat instance from test.
It seems that there is only one way to pass mock with defined behaviour to system-under-test
(SUT, fragment in our case) - through simple setter in this fragment.

When I try to inject mock through Dagger's MockModule (which overrides regular Module) the
behaviour of this injected mock is lost.
Test connect button handling
Test listen button handling
Some design changes
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