收到 kotlin 错误“等待 60000 毫秒后，测试协程未完成”

我是测试新手，试图获取第二个流量值并断言它，当我逐个运行此测试时运行良好，但是当我运行整个测试时，第一个测试运行良好，其余测试给我超时错误。

Error :

After waiting for 60000 ms, the test coroutine is not completing
kotlinx.coroutines.test.UncompletedCoroutinesError: After waiting for 60000 ms, the test coroutine is not completing
    at app//kotlinx.coroutines.test.TestBuildersKt__TestBuildersKt$runTestCoroutine$3$3.invokeSuspend(TestBuilders.kt:304)
    (Coroutine boundary)

@OptIn(ExperimentalCoroutinesApi::class)
class HomeViewModelTest {

    private lateinit var viewModel: HomeViewModel
    private val testDispatcher = UnconfinedTestDispatcher()

    @Before
    fun setup() {
        viewModel = HomeViewModel(FakeOrderRepository())
        Dispatchers.setMain(testDispatcher)
    }

    @After
    fun tearDown() {
        Dispatchers.resetMain()
        testDispatcher.cancel()
    }

    @Test
    fun flowViewModelTesting1() = runTest {
        val result = viewModel.homeUiState.drop(1).first()
        assertThat(true).isTrue()
    }


    @Test
    fun flowViewModelTesting2() = runTest {
        val result = viewModel.homeUiState.drop(1).first()
        assertThat(true).isTrue()
    }
}

我遇到过同样的问题。更换UnconfinedTestDispatcher() with StandardTestDispatcher()将解决问题。