SetupMockwebServer.

SetupMockwebServer.kt

    private lateinit var service: ImageApiService
    private lateinit var server: MockWebServer   
   
    @Before
    fun setUp() {
        server = MockWebServer()
        service = Retrofit.Builder()
            .baseUrl(server.url(""))//We will use MockWebServers url
            .addConverterFactory(GsonConverterFactory.create())
            .build()
            .create(ImageApiService::class.java)
    }
    
    private fun enqueueMockResponse(fileName: String) {
        javaClass.classLoader?.let {
            val inputStream = it.getResourceAsStream(fileName)
            val source = inputStream.source().buffer()
            val mockResponse = MockResponse()
            mockResponse.setBody(source.readString(Charsets.UTF_8))
            server.enqueue(mockResponse)
        }
    }
    
    @After
    fun tearDown() {
        server.shutdown()
    }