如何为示例androidTest
请求创建retrofit
?
样品
data class TestDataClass(
val id: String,
val employee_name: String,
val employee_salary: String,
val employee_age: String,
val profile_image: String)
enum class NetworkState { LOADING, ERROR, DONE }
private const val BASE_URL = "http://dummy.restapiexample.com/api/v1/"
private val moshi = Moshi.Builder()
.add(KotlinJsonAdapterFactory())
.build()
private val retrofit = Retrofit.Builder()
.addConverterFactory(MoshiConverterFactory.create(moshi))
.addCallAdapterFactory(CoroutineCallAdapterFactory())
.baseUrl(BASE_URL)
.build()
interface TestApiService {
@GET("employees")
fun getPropertiesAsync():
Deferred<List<TestDataClass>>
}
object TestApi {
val retrofitTest : TestApiService by lazy { retrofit.create(TestApiService::class.java) }
}
答案 0 :(得分:1)
您可以通过Square使用MockWebServer库。
在测试源集中(src / test / resources)中创建一个resources
,并将其中包含来自API的示例响应的JSON文件放入其中。假设它看起来像这样:
src / test / resources / sample_response.json
[
{
"id": "1",
"employee_name": "John Doe",
"employee_salary": "60000",
"employee_age": 37,
"profile_image": "https://dummy.sample-image.com/johndoe"
}
]
然后您可以将测试编写为:
class ApiTest {
private lateinit var server: MockWebServer
private lateinit var retrofit: Retrofit
private lateinit var service: TestApiService
@Before
fun setup() {
server = MockWebServer()
retrofit = Retrofit.Builder()
.addConverterFactory(MoshiConverterFactory.create(get<Moshi>()))
.addCallAdapterFactory(get<CoroutinesNetworkResponseAdapterFactory>())
.baseUrl(mockWebServer.url("/"))
.build()
service = retrofit.create(TestApi::class.java)
}
@After
fun teardown() {
server.close()
}
@Test
fun simpleTest() = runBlocking<Unit> {
val sampleResponse = this::class.java.getResource("/sample_response.json").readText()
server.enqueue(
MockResponse()
.setBody(sampleResponse)
)
val response = service.getPropertiesAsync().await()
assertTrue(1, response.size)
assertTrue(response[0].employee_name = "John Doe"
// Make as many assertions as you like
}
}
不过,您必须问自己,您要测试的是什么?无需测试Retrofit的功能。您也不应该测试Moshi等其他知名库的功能。
这些测试最有效的目的是验证您为API响应创建的数据模型确实正确,并且您的解析器(在本例中为Moshi)可以正确地正确处理意外的值(例如null)。因此,重要的是,您选择的样本响应是来自API的实际响应,以便可以在测试中将数据模型针对测试中的真实数据进行验证,然后才能在应用中使用。