KtorEasy routing testing example 1

RegistrationRoutingTest.kt

@TestInstance(TestInstance.Lifecycle.PER_CLASS)
class RegistrationRoutingTest : BaseRoutingTest() {

    private val registrationController: RegistrationController = mockk()

    @BeforeAll
    fun setup() {
        koinModules = module {
            single { registrationController }
        }

        moduleList = {
            install(Routing) {
                registrationModule()
            }
        }
    }

    @BeforeEach
    fun clearMocks() {
        clearMocks(registrationController)
    }

    @Test
    fun `when creating user with successful insertion, we return response user body`() = withBaseTestApplication {
        val userId = 11
        val responseUser = givenAResponseUser(userId)
        coEvery { registrationController.createUser(any()) } returns responseUser

        val body = toJsonBody(givenPostUserBody())
        val call = handleRequest(HttpMethod.Post, "/user") {
            addHeader(HttpHeaders.ContentType, ContentType.Application.Json.toString())
            setBody(body)
        }
        with(call) {
            assertThat(HttpStatusCode.OK).isEqualTo(response.status())
            val responseBody = response.parseBody(ResponseUser::class.java)
            assertThat(responseUser).isEqualTo(responseBody)
        }
    }
}