54 lines
2.4 KiB
Java
54 lines
2.4 KiB
Java
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package org.broadinstitute.sting.utils;
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import org.broadinstitute.sting.BaseTest;
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import org.broadinstitute.sting.utils.exceptions.ReviewedStingException;
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import org.testng.Assert;
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import org.testng.annotations.BeforeClass;
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import org.testng.annotations.Test;
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import java.io.File;
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public class SimpleTimerUnitTest extends BaseTest {
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private final static String NAME = "unit.test.timer";
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@Test
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public void testSimpleTimer() {
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SimpleTimer t = new SimpleTimer(NAME);
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Assert.assertEquals(t.getName(), NAME, "Name is not the provided one");
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Assert.assertFalse(t.isRunning(), "Initial state of the timer is running");
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Assert.assertEquals(t.getElapsedTime(), 0.0, "New timer elapsed time should be 0");
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t.start();
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Assert.assertTrue(t.isRunning(), "Started timer isn't running");
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Assert.assertTrue(t.getElapsedTime() >= 0.0, "Elapsed time should be >= 0");
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double t1 = t.getElapsedTime();
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idleLoop(); // idle loop to wait a tiny bit of time
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double t2 = t.getElapsedTime();
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Assert.assertTrue(t2 >= t1, "T2 >= T1 for a running time");
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t.stop();
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Assert.assertFalse(t.isRunning(), "Stopped timer still running");
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double t3 = t.getElapsedTime();
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idleLoop(); // idle loop to wait a tiny bit of time
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double t4 = t.getElapsedTime();
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Assert.assertTrue(t4 == t3, "Elapsed times for two calls of stop timer not the same");
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t.restart();
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idleLoop(); // idle loop to wait a tiny bit of time
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double t5 = t.getElapsedTime();
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Assert.assertTrue(t.isRunning(), "Restarted timer should be running");
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idleLoop(); // idle loop to wait a tiny bit of time
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double t6 = t.getElapsedTime();
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Assert.assertTrue(t5 >= t4, "Restarted timer elapsed time should be after elapsed time preceding the restart");
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Assert.assertTrue(t6 >= t5, "Second elapsed time not after the first in restarted timer");
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t.stop().start();
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Assert.assertTrue(t.isRunning(), "second started timer isn't running");
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Assert.assertTrue(t.getElapsedTime() >= 0.0, "elapsed time should have been reset");
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Assert.assertTrue(t.getElapsedTime() < t6, "elapsed time isn't less than time before start call"); // we should have effective no elapsed time
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}
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private final static void idleLoop() {
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for ( int i = 0; i < 100000; i++ ) ; // idle loop to wait a tiny bit of time
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}
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}
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