预期行为
使用mockObject
函数implementation替换模拟对象初始化,并用documentation和Medium post概述了JUnit 5的注释语法初始化。
当前行为
所讨论的测试是针对JUnit 5的@oleksiyp所概述的parameterized test,似乎与@phauer冲突。为了使用LiveData进行测试,测试必须使用@ExtendWith(MockKExtension::class)
设计的InstantExecutorExtension
在本地单元测试中同步运行。
模拟对象初始化可以与InstantExecutorExtension
函数一起正常工作,但是无法使用注释@JeroenMols。
警告消息/构建失败:
尚不支持具有非源保留的可重复注释。
mockObject
函数实现(按预期工作)
@MockK
Annotation语法初始化(由于两个扩展名mockObject
,无法正常工作]
@ExtendWith(InstantExecutorExtension::class)
class NavigateContentTests {
private val mainThreadSurrogate = newSingleThreadContext("UI thread")
private val contentViewModel = ContentViewModel()
// This is the stream of tests to run in the Parameterized test below.
private fun NavigateContent() = Stream.of(
NavigateContentTest(
isRealtime = false,
feedType = MAIN,
timeframe = DAY,
mockFeedList = mockDbContentListForDay,
mockContent = mockArticleContent),
...)
@BeforeAll
fun beforeAll() { mockkObject(ContentRepository) }
@AfterAll
fun afterAll() { unmockkAll() // Re-assigns transformation of object to original state prior to mock. }
@BeforeEach
fun beforeEach() { Dispatchers.setMain(mainThreadSurrogate) }
@AfterEach
fun afterEach() {
Dispatchers.resetMain() // Reset main dispatcher to the original Main dispatcher.
mainThreadSurrogate.close()
}
@ParameterizedTest
@MethodSource("NavigateContent")
fun `Navigate Content`(test: NavigateContentTest) = runBlocking {
every { ContentRepository.getMainFeedList(test.isRealtime, any()) } returns mockGetMainFeedList(
test.mockFeedList, CONTENT)
every {
ContentRepository.queryLabeledContentList(test.feedType)
} returns mockQueryMainContentList(test.mockFeedList)
every { ContentRepository.getContent(test.mockContent.id) } returns mockGetContent(test)
// Tests here...
// Verification here...
}
}
根据MockK创建者@ExtendWith
的记录,这是根据@ExtendWith(InstantExecutorExtension::class)
@ExtendWith(MockKExtension::class)
class NavigateContentTests {
// This object should be mocked.
@MockK
lateinit var contentRepository: ContentRepository
private val mainThreadSurrogate = newSingleThreadContext("UI thread")
private val contentViewModel = ContentViewModel()
// This is the stream of tests to run in the Parameterized test below.
private fun NavigateContent() = Stream.of(
NavigateContentTest(
isRealtime = false,
feedType = MAIN,
timeframe = DAY,
mockFeedList = mockDbContentListForDay,
mockContent = mockArticleContent),
...)
@BeforeAll
fun beforeAll() { MockKAnnotations.init(this, relaxUnitFun = true) // turn relaxUnitFun on for }
@AfterAll
fun afterAll() { unmockkAll() // Re-assigns transformation of object to original state prior to mock. }
@BeforeEach
fun beforeEach() { Dispatchers.setMain(mainThreadSurrogate) }
@AfterEach
fun afterEach() {
Dispatchers.resetMain() // Reset main dispatcher to the original Main dispatcher.
mainThreadSurrogate.close()
}
@ParameterizedTest
@MethodSource("NavigateContent")
fun `Navigate Content`(test: NavigateContentTest) = runBlocking {
every { contentRepository.getMainFeedList(test.isRealtime, any()) } returns mockGetMainFeedList(
test.mockFeedList, CONTENT)
every {
contentRepository.queryLabeledContentList(test.feedType)
} returns mockQueryMainContentList(test.mockFeedList)
every { contentRepository.getContent(test.mockContent.id) } returns mockGetContent(test)
// Tests here...
// Verification here...
}
}
的错误。