我正在Android项目上工作，并进行API调用以从服务器获取数据。我使用Retrofit进行网络连接，使用StateFlow存储数据并将数据传递到UI层。
它运行得非常好，行为明智。
我为ViewModel写了一个单元测试，成功，失败，但是我得到了一个协程超时错误，看起来像是有什么东西从协程中泄漏出来。我也不是很确定。任何帮助将不胜感激。
我还检查了StackOverflow的一些答案，但没有帮助

• Getting kotlin error "After waiting for 60000 ms, the test coroutine is not completing"
• Asserting a coroutine is not complete under unit test

我也愿意为视图模型重写测试用例，包括加载，成功和失败场景。

错误

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 kotlinx.coroutines.test.TestBuildersKt__TestBuildersKt$runTestCoroutine$3$3.invokeSuspend(TestBuilders.kt:342)
    (Coroutine boundary)
    at kotlinx.coroutines.test.TestBuildersKt__TestBuildersKt.runTestCoroutine(TestBuilders.kt:326)
    at kotlinx.coroutines.test.TestBuildersKt__TestBuildersKt$runTest$1$1.invokeSuspend(TestBuilders.kt:167)
    at kotlinx.coroutines.test.TestBuildersJvmKt$createTestResult$1.invokeSuspend(TestBuildersJvm.kt:13)
Caused by: kotlinx.coroutines.test.UncompletedCoroutinesError: After waiting for 60000 ms, the test coroutine is not completing
    at kotlinx.coroutines.test.TestBuildersKt__TestBuildersKt$runTestCoroutine$3$3.invokeSuspend(TestBuilders.kt:342)
    at app//kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
    at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)

视图模型

private val _uiCaseListState = MutableStateFlow<Resource<List<Case>>?>(null)
    val uiCaseListState: StateFlow<Resource<List<Case>>?> get() = _uiCaseListState
    fun fetchCaseList() {
        viewModelScope.launch(Dispatchers.IO) {
            inboxRepository.fetchCaseList().collect { response ->
                when {
                    response.isSuccessful -> {
                        response.body()?.let { caseList ->
                            val filterCaseList = caseList.sortedByDescending { case ->
                                case.createdDate.time
                            }
                            _uiCaseListState.emit(Resource.Success(filterCaseList))
                        }
                    }
                    !response.isSuccessful -> {
                        _uiCaseListState.emit(Resource.Failure(ErrorCode.GENERAL_ERROR))
                    }
                    else -> {
                        _uiCaseListState.emit(Resource.Failure(ErrorCode.GENERAL_ERROR))
                    }
                }
            }
        }
    }

单元测试

@Test
    fun fetchCaseList_Success_CaseList() = runTest {
        // Arrange
        val repo = InboxRepository(object : InboxApi {
            override suspend fun fetchCaseList(): Response<List<Case>?> {
                return Response.success(testCaseList)
            }
        })
        val vm = InboxViewModel(repo)
        // Act
        vm.fetchCaseList()
        // Assert
        assertEquals(Resource.Success(testCaseList).data.size, vm.uiCaseListState.drop(1).first()!!.data!!.size)
    }
    /**
     * "kotlinx.coroutines.test.UncompletedCoroutinesError:After waiting for 60000 ms, the test coroutine is not completing"
     */
    @Ignore
    @Test
    fun fetchCaseList_Failure_GENERAL_ERROR() = runTest {
        // Arrange
        val error: Response<List<Case>?> = Response.error(
            400,
            "{\"key\":[\"someError\"]}"
                .toResponseBody("application/json".toMediaTypeOrNull())
        )
        val repo = InboxRepository(object : InboxApi {
            override suspend fun fetchCaseList(): Response<List<Case>?> {
                return error
            }
        })
        val vm = InboxViewModel(repo)
        // Act
        vm.fetchCaseList()
        // Assert
        assertEquals(Resource.Failure<Error>(ErrorCode.GENERAL_ERROR), vm.uiCaseListState.drop(1).first())
    }