TestInstance.java

package org.datadog.jmxfetch;

import static org.junit.Assert.assertEquals;

import java.util.HashMap;
import java.util.LinkedList;

import org.apache.log4j.Logger;
import org.junit.Test;

public class TestInstance extends TestCommon {
	private final static Logger LOGGER = Logger.getLogger("Test Instance");
	
	@Test
	public void testMinCollectionInterval() throws Exception {
		registerMBean(new SimpleTestJavaApp(), "org.datadog.jmxfetch.test:foo=Bar,qux=Baz");
		initApplication("jmx_min_collection_period.yml");
		
		run();
		LinkedList<HashMap<String, Object>> metrics = getMetrics();
		assertEquals(15, metrics.size());
		
		run();
		metrics = getMetrics();
		assertEquals(0, metrics.size());
		
		LOGGER.info("sleeping before the next collection");
		Thread.sleep(5000);
		run();
		metrics = getMetrics();
		assertEquals(15, metrics.size());
	}

}