Enable native tests; Add proxy test with json

ktor-client/ktor-client-tests/build.gradle.kts

@@ -78,19 +78,30 @@ kotlin.sourceSets {
         }
     }
 
-//    if (!ideaActive) {
-//        listOf("linuxX64Test", "mingwX64Test", "macosX64Test").map { getByName(it) }.forEach {
-//            it.dependencies {
-//                api(project(":ktor-client:ktor-client-curl"))
-//            }
-//        }
-//
-//        listOf("iosX64Test", "iosArm64Test", "iosArm64Test", "macosX64Test").map { getByName(it) }.forEach {
-//            it.dependencies {
+    if (!ideaActive) {
+        listOf("linuxX64Test", "mingwX64Test", "macosX64Test").map { getByName(it) }.forEach {
+            it.dependencies {
+                api(project(":ktor-client:ktor-client-curl"))
+            }
+        }
+
+        listOf("iosX64Test", "iosArm64Test", "iosArm64Test", "macosX64Test").map { getByName(it) }.forEach {
+            it.dependencies {
+                api(project(":ktor-client:ktor-client-ios"))
+            }
+        }
+    } else {
+        posixTest {
+            dependencies {
+                api(project(":ktor-client:ktor-client-curl"))
+            }
+        }
+//        darwinTest {
+//            dependencies {
 //                api(project(":ktor-client:ktor-client-ios"))
 //            }
 //        }
-//    }
+    }
 }
 
 val startTestServer = task<KtorTestServer>("startTestServer") {

ktor-client/ktor-client-tests/common/test/io/ktor/client/tests/ProxyTest.kt

@@ -5,11 +5,15 @@
 package io.ktor.client.tests
 
 import io.ktor.client.engine.*
+import io.ktor.client.features.json.*
 import io.ktor.client.request.*
 import io.ktor.client.tests.utils.*
-import kotlin.collections.get
+import kotlinx.serialization.*
 import kotlin.test.*
 
+@Serializable
+data class ProxyResponse(val status: String)
+
 class ProxyTest : ClientLoader() {
 
     @Test
@@ -25,4 +29,22 @@ class ProxyTest : ClientLoader() {
             assertEquals("proxy", response)
         }
     }
+
+    @Test
+    fun testProxyWithSerialization() = clientTests(listOf("Js")) {
+        config {
+            engine {
+                proxy = ProxyBuilder.http(HTTP_PROXY_SERVER)
+            }
+
+            install(JsonFeature)
+        }
+
+        test { client ->
+            val response = client.get<ProxyResponse>("http://google.com")
+            val expected = ProxyResponse("OK")
+
+            assertEquals(expected, response)
+        }
+    }
 }

ktor-client/ktor-client-tests/jvm/src/io/ktor/client/tests/utils/TestTcpServer.kt

@@ -24,7 +24,7 @@ internal class TestTcpServer(val port: Int, handler: suspend (Socket) -> Unit) :
 
                 try {
                     socket.use { handler(it) }
-                } catch (_ : Throwable) {
+                } catch (_: Throwable) {
                 }
             }
         }

ktor-client/ktor-client-tests/jvm/src/io/ktor/client/tests/utils/tests/Proxy.kt

@@ -13,10 +13,11 @@ suspend fun proxyHandler(socket: Socket) {
     val output = socket.openWriteChannel()
 
     val statusLine = input.readUTF8Line()
-    val response = if (statusLine == "GET http://google.com/ HTTP/1.1") {
-        buildResponse(HttpStatusCode.OK)
-    } else {
-        buildResponse(HttpStatusCode.BadRequest)
+
+    val response = when (statusLine) {
+        "GET http://google.com/ HTTP/1.1" -> buildResponse(HttpStatusCode.OK)
+        "GET http://google.com/json HTTP/1.1" -> buildResponse(HttpStatusCode.OK, "{'status': 'ok'}")
+        else -> buildResponse(HttpStatusCode.BadRequest)
     }
 
     output.writeStringUtf8(response)
@@ -27,9 +28,9 @@ suspend fun proxyHandler(socket: Socket) {
     }
 }
 
-private fun buildResponse(status: HttpStatusCode) = buildString {
+private fun buildResponse(status: HttpStatusCode, body: String = "proxy") = buildString {
     append("HTTP/1.1 ${status.value} ${status.description}\r\n")
     append("Connection: close\r\n")
     append("\r\n")
-    append("proxy")
+    append(body)
 }