commonTest.io.rsocket.kotlin.keepalive.KeepAliveTest.kt Maven / Gradle / Ivy

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/*
 * Copyright 2015-2020 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.rsocket.kotlin.keepalive

import io.ktor.utils.io.core.*
import io.rsocket.kotlin.*
import io.rsocket.kotlin.frame.*
import io.rsocket.kotlin.internal.*
import io.rsocket.kotlin.test.*
import kotlinx.coroutines.*
import kotlin.test.*
import kotlin.time.*

class KeepAliveTest : TestWithConnection(), TestWithLeakCheck {

    private fun requester(keepAlive: KeepAlive = KeepAlive(100.milliseconds, 1.seconds)): RSocket = run {
        val state = RSocketState(connection, keepAlive)
        val requester = RSocketRequester(state, StreamId.client())
        state.start(RSocketRequestHandler { })
        requester
    }

    @Test
    fun requesterSendKeepAlive() = test {
        requester()
        connection.test {
            repeat(5) {
                expectFrame { frame ->
                    assertTrue(frame is KeepAliveFrame)
                    assertTrue(frame.respond)
                }
            }
        }
    }

    @Test
    fun rSocketNotCanceledOnPresentKeepAliveTicks() = test {
        val rSocket = requester(KeepAlive(100.seconds, 100.seconds))
        connection.launch {
            repeat(50) {
                delay(100.milliseconds)
                connection.sendToReceiver(KeepAliveFrame(true, 0, ByteReadPacket.Empty))
            }
        }
        delay(1.5.seconds)
        assertTrue(rSocket.job.isActive)
        connection.test {
            repeat(50) {
                expectItem()
            }
        }
    }

    @Test
    fun requesterRespondsToKeepAlive() = test {
        requester(KeepAlive(100.seconds, 100.seconds))
        connection.launch {
            while (isActive) {
                delay(100.milliseconds)
                connection.sendToReceiver(KeepAliveFrame(true, 0, ByteReadPacket.Empty))
            }
        }

        connection.test {
            repeat(5) {
                expectFrame { frame ->
                    assertTrue(frame is KeepAliveFrame)
                    assertFalse(frame.respond)
                }
            }
        }
    }

    @Test
    fun noKeepAliveSentAfterRSocketCanceled() = test {
        requester().job.cancel()
        connection.test {
            expectNoEventsIn(500)
        }
    }

    @Test
    fun rSocketCanceledOnMissingKeepAliveTicks() = test {
        val rSocket = requester()
        connection.test {
            while (rSocket.job.isActive) kotlin.runCatching { expectItem() }
        }
        assertTrue(rSocket.job.getCancellationException().cause is RSocketError.ConnectionError)
    }

}