org.springframework.http.server.reactive.AbstractHttpHandlerIntegrationTests.java Source code

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Here is the source code for org.springframework.http.server.reactive.AbstractHttpHandlerIntegrationTests.java

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/*
 * Copyright 2002-2018 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 org.springframework.http.server.reactive;

import java.io.File;
import java.time.Duration;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.junit.After;
import org.junit.Before;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import reactor.core.publisher.Flux;

import org.springframework.http.server.reactive.bootstrap.HttpServer;
import org.springframework.http.server.reactive.bootstrap.JettyHttpServer;
import org.springframework.http.server.reactive.bootstrap.ReactorHttpServer;
import org.springframework.http.server.reactive.bootstrap.TomcatHttpServer;
import org.springframework.http.server.reactive.bootstrap.UndertowHttpServer;

@RunWith(Parameterized.class)
public abstract class AbstractHttpHandlerIntegrationTests {

    protected Log logger = LogFactory.getLog(getClass());

    protected int port;

    @Parameterized.Parameter(0)
    public HttpServer server;

    @Parameterized.Parameters(name = "server [{0}]")
    public static Object[][] arguments() {
        File base = new File(System.getProperty("java.io.tmpdir"));
        return new Object[][] { { new JettyHttpServer() }, { new ReactorHttpServer() },
                { new TomcatHttpServer(base.getAbsolutePath()) }, { new UndertowHttpServer() } };
    }

    @Before
    public void setup() throws Exception {
        this.server.setHandler(createHttpHandler());
        this.server.afterPropertiesSet();
        this.server.start();

        // Set dynamically chosen port
        this.port = this.server.getPort();
    }

    @After
    public void tearDown() throws Exception {
        this.server.stop();
        this.port = 0;
    }

    protected abstract HttpHandler createHttpHandler();

    /**
     * Return an interval stream of N number of ticks and buffer the emissions
     * to avoid back pressure failures (e.g. on slow CI server).
     *
     * <p>Use this method as follows:
     * <ul>
     * <li>Tests that verify N number of items followed by verifyOnComplete()
     * should set the number of emissions to N.
     * <li>Tests that verify N number of items followed by thenCancel() should
     * set the number of buffered to an arbitrary number greater than N.
     * </ul>
     */
    public static Flux<Long> interval(Duration period, int count) {
        return Flux.interval(period).take(count).onBackpressureBuffer(count);
    }

}