AuthenticationManagerTest.kt

class AuthenticationManagerTest : KoinTest{

    lateinit var server : MockWebServer

    @Before
    fun initTest(){
        server = MockWebServer()
    }

    @After
    fun shutdown(){
        server.shutdown()
    }

    @Test
    fun `authentication sends proper body`(){
        server.apply{
            enqueue(MockResponse().setBody(MockResponseFileReader("login_success.json").content))
        }

        val baseUrl = server.url("")

        //we create the AuthenticationManager using the Base Url provided by the Mock Server
        startKoin(listOf(module {
            single { AuthenticationManager(baseUrl.url().toString()) }
        }))
      
        get<AuthenticationManager>().apply {
            authenticateBlocking()
        }

        val testBody = LoginBody(AuthenticationManager.username, AuthenticationManager.password)
        val requestBody = server.takeRequest().body.readUtf8()

        val json = JsonParser().parse(requestBody).asJsonObject
        assertEquals(json.get("username").toString().replace("\"",""), testBody.username)
    }
 }