MonitoringTest.java

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package org.glassfish.jersey.tests.cdi.resources;

import java.util.Arrays;
import java.util.List;

import javax.ws.rs.client.WebTarget;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.junit.Assert.assertThat;

/**
 * Test for monitoring statistics injection.
 *
 * @author Jakub Podlesak (jakub.podlesak at oracle.com)
 */
@RunWith(Parameterized.class)
public class MonitoringTest extends CdiTest {

    @Parameterized.Parameters
    public static List<Object[]> testData() {
        return Arrays.asList(new Object[][] {
                {"app-field-injected"},
                {"app-ctor-injected"},
                {"request-field-injected"},
                {"request-ctor-injected"}
        });
    }

    final String resource;

    /**
     * Construct instance with the above test data injected.
     *
     * @param resource uri of resource to be tested.
     */
    public MonitoringTest(final String resource) {
        this.resource = resource;
    }

    /**
     * Make several requests and check the counter keeps incrementing.
     *
     * @throws Exception in case of unexpected test failure.
     */
    @Test
    public void testRequestCount() throws Exception {
        final WebTarget target = target().path(resource).path("requestCount");
        Thread.sleep(1000); // this is to allow statistics on the server side to get updated
        final int start = Integer.decode(target.request().get(String.class));
        for (int i = 1; i < 4; i++) {
            Thread.sleep(1000); // this is to allow statistics on the server side to get updated
            final int next = Integer.decode(target.request().get(String.class));
            assertThat(String.format("testing %s", resource), next, equalTo(start + i));
        }
    }
}