Get context of test project in Android junit test case

Question

Does anyone know how can you get the context of the Test project in Android junit test case (extends AndroidTestCase).

Note: The test is NOT instrumentation test.

Note 2: I need the context of the test project, not the context of the actual application that is tested.

I need this to load some files from assets from the test project.

Answer 1

There's new approach with Android Testing Support Library (currently androidx.test:runner:1.1.1). Kotlin updated example:

class ExampleInstrumentedTest {

    lateinit var instrumentationContext: Context

    @Before
    fun setup() {
        instrumentationContext = InstrumentationRegistry.getInstrumentation().context
    }

    @Test
    fun someTest() {
        TODO()
    }
}

If you want also app context run:

InstrumentationRegistry.getInstrumentation().targetContext

Full running example: https://github.com/fada21/AndroidTestContextExample

Look here: What's the difference between getTargetContext() and getContext (on InstrumentationRegistry)?