How do i manage resources in Kotlin ? Trying to make the setUp function run only once not before every test

Issue

I want to run the setUp function only once, not before every test from the class. I've tried to make the setUp funtion static but i get an error - unresolved reference

@RunWith(AndroidJUnit4::class)
@LargeTest
open class BaseTest {

    @Rule
    val activityRule = ActivityTestRule(HomeActivity::class.java)




Class that inherits Base test class

@RunWith(AndroidJUnit4::class)
@LargeTest
open class HomeScreenWithoutInternet : BaseTest() {


    private lateinit var context: HomeActivity
    @Before
    open fun setUp() {
        context = activityRule.activity  // "Unresolved reference: activityRule"
        val wifiManager = context.getSystemService(Context.WIFI_SERVICE) as WifiManager
        wifiManager.isWifiEnabled = false
        TimeUnit.SECONDS.sleep(5)
        assertFalse("There is internet connection available", isConnected(context))
    }

Solution

Although it's recommended to keep tests completely independent from one another, there are things you just can't afford re-setting-up.

What you're looking for is @BeforeClass (JUnit 4).

https://www.baeldung.com/junit-before-beforeclass-beforeeach-beforeall

Answered By - Achraf Amil