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TestApplicationTestJvm.kt
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TestApplicationTestJvm.kt
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/*
* Copyright 2014-2021 JetBrains s.r.o and contributors. Use of this source code is governed by the Apache 2.0 license.
*/
package io.ktor.tests.server.testing
import io.ktor.client.network.sockets.*
import io.ktor.client.plugins.*
import io.ktor.client.plugins.websocket.*
import io.ktor.client.request.*
import io.ktor.client.statement.*
import io.ktor.http.*
import io.ktor.http.content.*
import io.ktor.server.application.*
import io.ktor.server.config.*
import io.ktor.server.response.*
import io.ktor.server.routing.*
import io.ktor.server.testing.*
import io.ktor.server.websocket.*
import io.ktor.util.*
import io.ktor.utils.io.*
import io.ktor.websocket.*
import kotlinx.coroutines.*
import kotlinx.coroutines.channels.*
import java.io.*
import kotlin.coroutines.*
import kotlin.test.*
import io.ktor.client.plugins.websocket.WebSockets as ClientWebSockets
class TestApplicationTestJvm {
@Test
fun testDefaultConfig() = testApplication {
application {
val config = environment.config
routing {
get("a") {
call.respond(config.property("ktor.test").getString())
}
}
}
val response = client.get("a")
assertEquals("test_value", response.bodyAsText())
}
@Test
fun testWebSockets() = testApplication {
install(WebSockets)
routing {
webSocket("/echo") {
for (message in incoming) {
outgoing.send(message)
}
}
}
val client = createClient { install(ClientWebSockets) }
client.ws("/echo") {
outgoing.send(Frame.Text("Hello"))
repeat(100) {
val frame = incoming.receive() as Frame.Text
assertEquals("Hello" + ".".repeat(it), frame.readText())
outgoing.send(Frame.Text(frame.readText() + "."))
}
}
}
@Test
fun testWebSocketWithError() = testApplication {
application {
intercept(ApplicationCallPipeline.Setup) {
throw RuntimeException()
}
install(WebSockets)
routing {
route("/") {
webSocket {
incoming.consumeEach {}
}
}
}
}
val client = createClient {
install(io.ktor.client.plugins.websocket.WebSockets) {}
}
assertFails {
client.webSocketSession {}
}
}
@Test
fun testCustomEnvironmentKeepsDefaultProperties() = testApplication {
environment { }
routing {
val config = environment.config
get("a") {
call.respond(config.property("ktor.test").getString())
}
}
val response = client.get("a")
assertEquals("test_value", response.bodyAsText())
}
@Test
fun testCustomConfig() = testApplication {
environment {
config = ApplicationConfig("application-custom.conf")
}
routing {
val config = environment.config
get {
call.respond(config.property("ktor.test").getString())
}
}
val response = client.get("/")
assertEquals("another_test_value", response.bodyAsText())
}
@Test
fun testCustomYamlConfig() = testApplication {
environment {
config = ApplicationConfig("application-custom.yaml")
}
routing {
val config = environment.config
get {
call.respond(config.property("ktor.test").getString())
}
}
val response = client.get("/")
assertEquals("another_test_value", response.bodyAsText())
}
@Test
fun testConfigLoadsModules() = testApplication {
environment {
config = ApplicationConfig("application-with-modules.conf")
}
val response = client.get("/")
assertEquals("OK FROM MODULE", response.bodyAsText())
}
@Test
fun testExternalServicesCustomConfig() = testApplication {
environment {
config = ApplicationConfig("application-custom.conf")
}
externalServices {
hosts("http://www.google.com") {
val config = environment.config
routing {
get {
val configValue = config.propertyOrNull("ktor.test")?.getString() ?: "no value"
call.respond(configValue)
}
}
}
}
val external = client.get("http://www.google.com")
assertEquals("another_test_value", external.bodyAsText())
}
@Test
fun testModuleWithLaunch() = testApplication {
var error: Throwable? = null
val exceptionHandler: CoroutineContext = object : CoroutineExceptionHandler {
override val key: CoroutineContext.Key<*> = CoroutineExceptionHandler.Key
override fun handleException(context: CoroutineContext, exception: Throwable) {
error = exception
}
}
testApplicationProperties {
parentCoroutineContext = exceptionHandler
}
application {
launch {
val byteArrayInputStream = ByteArrayOutputStream()
val objectOutputStream = ObjectOutputStream(byteArrayInputStream)
objectOutputStream.writeObject(TestClass(123))
objectOutputStream.flush()
objectOutputStream.close()
val ois = TestObjectInputStream(ByteArrayInputStream(byteArrayInputStream.toByteArray()))
val test = ois.readObject()
test as TestClass
}
}
routing {
get("/") {
call.respond("OK")
}
}
client.get("/")
Thread.sleep(3000)
assertNull(error)
}
@Test
fun testMultipleParallelWebSocketsRequests() = testApplication {
install(WebSockets)
routing {
webSocket("/") {
send(incoming.receive())
}
}
val client = createClient {
install(ClientWebSockets)
}
coroutineScope {
val jobs = (1..100).map {
async {
client.ws("/") {
send(Frame.Text("test"))
assertEquals("test", (incoming.receive() as Frame.Text).readText())
}
}
}
jobs.forEach { it.join() }
}
}
@Test
fun testRetrievingPluginInstance() = testApplication {
install(MyCalculatorPlugin)
application {
val result = plugin(MyCalculatorPlugin).add(1, 2)
assertEquals(3, result)
}
}
@Test
fun testCanPassCoroutineContextFromOutsideWithWS() = runBlocking(MyElement("test")) {
testApplication(coroutineContext) {
install(WebSockets)
routing {
webSocket("ws") {
assertEquals("test", (incoming.receive() as Frame.Text).readText())
outgoing.send(Frame.Text(coroutineContext[MyElement]!!.data))
}
}
val client = createClient {
install(ClientWebSockets)
}
client.webSocket("ws") {
outgoing.send(Frame.Text(coroutineContext[MyElement]!!.data))
assertEquals("test", (incoming.receive() as Frame.Text).readText())
}
}
}
class MyElement(val data: String) : CoroutineContext.Element {
override val key: CoroutineContext.Key<*>
get() = MyElement
companion object : CoroutineContext.Key<MyElement>
override fun toString(): String = "=====$data====="
}
public fun Application.module() {
routing {
get { call.respond("OK FROM MODULE") }
}
}
@Test
fun testWebSocketConnectionFailed() = testApplication {
val client = createClient {
install(io.ktor.client.plugins.websocket.WebSockets)
}
val error = assertFailsWith<IllegalStateException> {
client.webSocket("/ws") { }
}
assertEquals("WebSocket connection failed", error.message)
}
private fun testSocketTimeoutWrite(timeout: Long, expectException: Boolean) = testApplication {
routing {
post {
call.respond(HttpStatusCode.OK, call.request.receiveChannel().readRemaining().toString())
}
}
val clientWithTimeout = createClient {
install(HttpTimeout) {
socketTimeoutMillis = timeout
}
}
val body = object : OutgoingContent.WriteChannelContent() {
override suspend fun writeTo(channel: ByteWriteChannel) {
channel.writeAvailable("Hello".toByteArray())
channel.flush()
delay(300)
channel.writeAvailable("World".toByteArray())
channel.flush()
}
}
if (expectException) {
assertFailsWith<SocketTimeoutException> {
clientWithTimeout.post("/") {
setBody(body)
}
}
} else {
clientWithTimeout.post("/") {
setBody(body)
}.apply {
assertEquals(HttpStatusCode.OK, status)
}
}
}
@Test
fun testSocketTimeoutWriteElapsed() {
testSocketTimeoutWrite(100, true)
}
@Test
fun testSocketTimeoutWriteNotElapsed() {
testSocketTimeoutWrite(1000, false)
}
}
class TestClass(val value: Int) : Serializable
class TestObjectInputStream(input: InputStream) : ObjectInputStream(input) {
override fun resolveClass(desc: ObjectStreamClass?): Class<*> {
val name = desc?.name
val loader = Thread.currentThread().contextClassLoader
return try {
Class.forName(name, false, loader)
} catch (e: ClassNotFoundException) {
super.resolveClass(desc)
}
}
}
class MyCalculatorPlugin {
class Configuration
companion object Plugin : BaseApplicationPlugin<ApplicationCallPipeline, Configuration, MyCalculatorPlugin> {
override val key = AttributeKey<MyCalculatorPlugin>("MyCalculatorPlugin")
override fun install(
pipeline: ApplicationCallPipeline,
configure: Configuration.() -> Unit
): MyCalculatorPlugin {
return MyCalculatorPlugin()
}
}
fun add(x: Int, y: Int): Int {
return x + y
}
}