如何将Espresso与Kotlin Flow一起使用？

import androidx.test.espresso.Espresso.onView
import androidx.test.espresso.action.ViewActions.click
import androidx.test.espresso.matcher.ViewMatchers.withId
import androidx.test.ext.junit.rules.ActivityScenarioRule
import androidx.test.ext.junit.runners.AndroidJUnit4
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.flow.collect
import kotlinx.coroutines.runBlocking
import org.junit.Rule
import org.junit.Test
import org.junit.runner.RunWith

@RunWith(AndroidJUnit4::class)
class ExampleInstrumentedTest {

    @get:Rule
    val activityRule = ActivityScenarioRule(MainActivity::class.java)

    @Test
    fun testEspressoWithKotlinFlow() {
        // Perform UI actions using Espresso
        onView(withId(R.id.button)).perform(click())

        // Define a Flow for async operations
        val flow = flow {
            // Perform async operations using Kotlin Flow
            emit(doAsyncOperation())
        }

        // Collect data from the Flow within a coroutine
        runBlocking(Dispatchers.Main) {
            flow.collect { result ->
                // Assert or perform actions based on the result
                // ...
            }
        }
    }

    private suspend fun doAsyncOperation(): String {
        // Perform async operation here
        // ...

        return "Async operation result"
    }
}