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/*
* This file is part of GNU Taler
* (C) 2020 Taler Systems S.A.
*
* GNU Taler is free software; you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation; either version 3, or (at your option) any later version.
*
* GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
package net.taler.merchantlib
import io.ktor.client.HttpClient
import io.ktor.client.engine.mock.MockEngine
import io.ktor.client.engine.mock.MockEngineConfig
import io.ktor.client.engine.mock.respond
import io.ktor.client.features.json.JsonFeature
import io.ktor.client.features.json.serializer.KotlinxSerializer
import io.ktor.http.ContentType.Application.Json
import io.ktor.http.Url
import io.ktor.http.fullPath
import io.ktor.http.headersOf
import io.ktor.http.hostWithPort
object MockHttpClient {
val httpClient = HttpClient(MockEngine) {
install(JsonFeature) {
serializer = KotlinxSerializer()
}
engine {
addHandler { error("No response handler set") }
}
}
fun HttpClient.giveJsonResponse(url: String, jsonProducer: () -> String) {
val httpConfig = engineConfig as MockEngineConfig
httpConfig.requestHandlers.removeAt(0)
httpConfig.requestHandlers.add { request ->
if (request.url.fullUrl == url) {
val headers = headersOf("Content-Type" to listOf(Json.toString()))
respond(jsonProducer(), headers = headers)
} else {
error("Unexpected URL: ${request.url.fullUrl}")
}
}
}
private val Url.hostWithPortIfRequired: String get() = if (port == protocol.defaultPort) host else hostWithPort
private val Url.fullUrl: String get() = "${protocol.name}://$hostWithPortIfRequired$fullPath"
}
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