I try to use `testApplication {}` and its `client`...

# ktor

[Norbi]

I try to use testApplication {} and its client but in some cases (?) the request URL is prepended by <http://localhost>. So for example /service/etc becomes <http://localhost/service/etc> when I POST the request, resulting in error 404.
Have you seen something similar?
Thanks.

[Aleksei Tirman [JB]]

Can you share a code for the test to reproduce this issue?

[Norbi]

I'm relatively new to ktor, so maybe I misconfigure something...

@Test
    fun testUrlIssue() = testApplication {
        routing {
            post("/{a}/{b}") {
            }
        }

        val httpClient = // or: client
            createClient {
                install(Logging) {
                    logger = Logger.DEFAULT
                    level = LogLevel.ALL
                }
            }

        val response = <http://httpClient.post|httpClient.post>("/a/1")
        assertEquals(HttpStatusCode.OK, response.status) // expected: <200 OK> but was: <404 Not Found>
    }

Log:

09:49:47.583 [Test worker @coroutine#2] INFO io.ktor.client.HttpClient - REQUEST: <http://localhost/a/1>
METHOD: HttpMethod(value=POST)
COMMON HEADERS
-> Accept: */*
-> Accept-Charset: UTF-8
CONTENT HEADERS
-> Content-Length: 0
BODY Content-Type: null
BODY START

BODY END
09:49:47.680 [DefaultDispatcher-worker-1 @call-context#3] INFO ktor.test - No ktor.deployment.watch patterns specified, automatic reload is not active.
09:49:47.732 [DefaultDispatcher-worker-1 @call-context#3] INFO ktor.test - Application started in 0.08 seconds.
09:49:48.255 [DefaultDispatcher-worker-1 @coroutine#8] INFO io.ktor.client.HttpClient - RESPONSE: 404 Not Found
METHOD: HttpMethod(value=POST)
FROM: <http://localhost/a/1>
COMMON HEADERS
-> Content-Length: 0
BODY Content-Type: null
BODY START

BODY END

expected: <200 OK> but was: <404 Not Found>
Expected :200 OK
Actual   :404 Not Found

Thanks.

[Aleksei Tirman [JB]]

By default the 404 status code is returned if any other code hasn’t been responded explicitly. To make your test pass, respond with the 200 status code:

routing {
    post("/{a}/{b}") {
        call.respond(HttpStatusCode.OK)
    }
}

[Norbi]

omg, what a lame mistake - thanks 🙂