run_blocking.kt

class MainViewModel : ViewModel() {

    private var isSessionExpired = false

    suspend fun checkSessionExpiry(): Boolean {
        withContext(Dispatchers.IO) {
            delay(5_000) // to simulate a heavy weight operations
            isSessionExpired = true
        }
        return isSessionExpired
    }
}
class MainViewModelTest {

    @Test
    fun testCheckSessionExpiry() = runBlocking {
        val mainViewModel = MainViewModel()

        val totalExecutionTime = measureTimeMillis {
            val isSessionExpired = mainViewModel.checkSessionExpiry()
            assertTrue(isSessionExpired)
        }

        print("Total Execution Time: $totalExecutionTime")
    }

}