Test that proves that he InMemorySessionStorage crashes when given an invalid session

InMemorySessionTest.kt

package de.qabel.teqs.ktor.modules.auth




import org.jetbrains.ktor.application.*
import org.jetbrains.ktor.http.*
import org.jetbrains.ktor.response.*
import org.jetbrains.ktor.routing.*
import org.jetbrains.ktor.sessions.*
import org.jetbrains.ktor.testing.*
import org.jetbrains.ktor.tests.*
import org.junit.*
import kotlin.test.*

class ServerSessionTest {

    @Test
    fun testSessionById() {
        val sessionStorage = inMemorySessionStorage()

        withTestApplication {
            application.withSessions<TestUserSession> {
                withCookieBySessionId(sessionStorage)
            }

            application.routing {
                get("/1") {
                    call.session(TestUserSession("id2", listOf("item1")))
                    call.respondText("ok")
                }
            }
            val call = handleRequest {
                uri = "/1"
                addHeader(HttpHeaders.Cookie,
                    "SESSION_ID=invalid")
            }
            val sessionId = call.response.cookies["SESSION_ID"]!!.value
            val nextCall = handleRequest {
                uri = "/1"
                addHeader(HttpHeaders.Cookie, "SESSION_ID=$sessionId")
            }
            assertEquals(sessionId, nextCall.response.cookies["SESSION_ID"]!!.value)
        }
    }

    data class TestUserSession(val userId: String, val cart: List<String>)
}