MemoryLeakingResourceITCase.java

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package org.glassfish.jersey.tests.memleaks.testleak;

import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.Application;
import javax.ws.rs.core.Response;

import org.glassfish.jersey.test.memleak.common.AbstractMemoryLeakWebAppTest;
import org.glassfish.jersey.test.memleak.common.MemoryLeakSucceedingTimeout;

import org.junit.Assert;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.Timeout;
import static org.junit.Assert.fail;

/**
 * Performs the test of a memory leaking RESTful resource.
 * <p/>
 * This test class should be used to test the memory leaking test infrastructure.
 */
public class MemoryLeakingResourceITCase extends AbstractMemoryLeakWebAppTest {

    @Rule
    public Timeout globalTimeout = new MemoryLeakSucceedingTimeout(100_000);

    @Override
    protected Application configure() {
        return new TestApplication();
    }

    /**
     * This test runs i single request; as such, it may or may not cause a memory leak (and end with a failure).
     */
    @Test
    public void testTheLeak() {

        final WebTarget webTarget = target("invoke").queryParam("size", 1024 * 1024);
        System.out.println(webTarget.getUri());
        final Response response = webTarget.request().post(null);
        Assert.assertEquals(200, response.getStatus());
    }

    /**
     * This test should fail after certain period of time (depending on the JVM settings too).
     */
    @Test
    public void testTheLeakEndless() {

        while (true) {
            System.out.print(".");
            final Response response = target("invoke").queryParam("size", 1024 * 1024).request().post(null);

            if (response.getStatus() != 200) {
                fail("The server was unable to fulfill the request! This may indicate that OutOfMemory exception occurred.");
            }
        }
    }

}