Before Ktor 3.0.0 released, this block of code was...

# ktor

[mudasar187]

Before Ktor 3.0.0 released, this block of code was acceptable:

lateinit var server: NettyApplicationEngine


    beforeTest {
        server = embeddedServer(Netty, PORT, module = Application::applicationTestModule).start()
    }

    afterTest {
        server.stop(5, 5)
    }

After upgrading to Ktor 3.0.0 , embeddedServer give me this error:
Any idea?

[Aleksei Tirman [JB]]

In Ktor 3.0.0, you can declare the server variable the following way:

lateinit var server: EmbeddedServer<NettyApplicationEngine, NettyApplicationEngine.Configuration>

[mudasar187]

Ah ok, thank you!

[mudasar187]

@Aleksei Tirman [JB] another problem here too:

private val engine = TestApplicationEngine(createTestEnvironment())

internal class AuthTokenTest : FunSpec({

    beforeTest {
        engine.start(wait = true)
    }

    test("token bør returnere NAVident") {

        val call =
            engine.handleRequest {
                addHeader(HttpHeaders.Authorization, "Bearer $tokenWithNavIdent")
            }

        val navIdent = AuthToken.getSaksbehandler(call)
        navIdent.ident shouldBe "Z123456"
    }

Could you explain me?

[mudasar187]

CleanShot 2024-10-14 at 14.14.52.png

[Osip Fatkullin]

@mudasar187, try to use TestApplication() instead of TestApplicationEngine(...) and application.client.get(...) to perform requests.

[mudasar187]

CleanShot 2024-10-14 at 14.26.30.png

[Aleksei Tirman [JB]]

Can you share the code as text?

[mudasar187]

private val engine = TestApplicationEngine(createTestEnvironment())

internal class AuthTokenTest : FunSpec({

    beforeTest {
        engine.start(wait = true)
    }

    test("token bør returnere NAVident") {

        val call =
            engine.handleRequest {
                addHeader(HttpHeaders.Authorization, "Bearer $tokenWithNavIdent")
            }

        val navIdent = AuthToken.getSaksbehandler(call)
        navIdent.ident shouldBe "Z123456"
    }
}

[Aleksei Tirman [JB]]

You can use the following code:

val engine = TestApplication {
    // Configure test server here
}
engine.start()

val response = engine.client.get("/") {
    header(HttpHeaders.Authorization, "Bearer $tokenWithNavIdent")
}
val call = response.call

[mudasar187]

my method getSaksbehandler takes ApplicationCall as parameter, but now i get HttpClientCall

[Aleksei Tirman [JB]]

What is the implementation of this method?

[mudasar187]

object AuthToken {
    fun getSaksbehandler(call: ApplicationCall): NavIdent {
        val oboToken =
            call.request.headers[HttpHeaders.Authorization]?.removePrefix("Bearer ")
                ?: throw Error("Could not get token from request header")
        val navIdent = getNAVIdentFromToken(oboToken)

        return NavIdent(navIdent)
    }

    private fun getNAVIdentFromToken(token: String): String {
        val decodedJWT = JWT.decode(token)
        return decodedJWT.claims[JWT_CLAIM_NAVIDENT]?.asString()
            ?: throw RuntimeException("Missing NAVident in private claims")
    }
}

[mudasar187]

val request = call.receive<OppdragsRequest>()
            val saksbehandler = getSaksbehandler(call)

[Aleksei Tirman [JB]]

You'll need to rewrite your code to use the testApplication and receive the JWT in a route handler, so the assertion will be made within the test server module.

[mudasar187]

You mean like this?

testApplication {
                application {
                    securityConfig(true, mockAuthConfig())
                    routing {
                        authenticate(true, AUTHENTICATION_NAME) {
                            oppdragsInfoApi(oppdragsInfoService)
                        }
                    }
                }
                val response = client.get("$OPPDRAGSINFO_BASE_API_PATH/faggrupper")
                response.status shouldBe HttpStatusCode.Unauthorized
            }

I was trying to isolate my AuthToken object tests but do i need to have testApplication now? 😕

[Aleksei Tirman [JB]]

The getSaksbehandler method can only be called in the server call context, so you need a test server application, which is provided by the testApplication .

[mudasar187]

I just made a mock test with mockk 🙂

internal class AuthTokenTest : FunSpec({

    test("token bør returnere NAVident") {

        val call = mockk<ApplicationCall>(relaxed = true)
        every { call.request.headers[HttpHeaders.Authorization] } returns "Bearer $tokenWithNavIdent"

        val result = AuthToken.getSaksbehandler(call)
        result.ident shouldBe "Z123456"
    }
}

[mudasar187]

Its make me test my AuthToken isolated without spinning up a testApplication 🙂

[mudasar187]

Thank you for the help @Aleksei Tirman [JB] @Osip Fatkullin