public void testMoveMarkBack() throws Exception {
timer.markTime();
long mark = timer.getTimeOfLastActivity();
timer.moveMarkBackInTime(12345);
assertEquals(12345, (mark - timer.getTimeOfLastActivity()));
}
@Test
public void idleTime() throws Exception {
assertEquals(true, timer.getIdleNanos() < ONE_MILLION);
Thread.sleep(10); // Doesn't necessarily sleep a full 10 millis
assertEquals(
"" + timer.getIdleNanos() + " should > NINE_MILLION",
true,
timer.getIdleNanos() > NINE_MILLION);
}
public void testSleeping() {
long before = System.nanoTime();
timer.sleep(TEN_MILLION);
long after = System.nanoTime();
long sleepDuration = after - before;
assertEquals(
"actual sleep duration: " + sleepDuration,
true,
(sleepDuration > NINE_MILLION && sleepDuration < ELEVEN_MILLION));
assertEquals(
true,
timer.getActualSleepDuration() > NINE_MILLION
&& timer.getActualSleepDuration() < ELEVEN_MILLION);
assertEquals(true, timer.getIdleNanos() < ONE_MILLION);
assertEquals(true, timer.getSleepJiggle() < ONE_MILLION);
}
public void testSleepDurationAndJiggle() throws Exception {
for (int i = 0; i < 10; i++) {
long before = System.nanoTime();
timer.sleep(TEN_MILLION);
long after = System.nanoTime();
long sleepDuration = after - before;
// System.err.println("sleepDuration = " + sleepDuration + " actual: " +
// timer.getActualSleepDuration() + " jiggle: " + timer.getSleepJiggle());
if (sleepDuration > TEN_MILLION) {
assertEquals(true, timer.getSleepJiggle() < 0);
} else if (sleepDuration < TEN_MILLION) {
assertEquals(true, timer.getSleepJiggle() > 0);
} else {
assertEquals(0, timer.getSleepJiggle());
}
}
}
public void testDoesntSleepIfDurationIsZeroOrLess() throws Exception {
Thread.sleep(10);
timer.sleep(-1234567890);
long mark = timer.getIdleNanos();
assertEquals(0, timer.getActualSleepDuration());
assertEquals("time of last activity: " + mark, true, mark < ONE_MILLION);
assertEquals(0, timer.getSleepJiggle());
Thread.sleep(10);
timer.sleep(TEN_MILLION);
timer.sleep(0);
mark = timer.getIdleNanos();
assertEquals(0, timer.getActualSleepDuration());
assertEquals("time of last activity: " + mark, true, mark < ONE_MILLION);
assertEquals(0, timer.getSleepJiggle());
}
public void testIdleTime() throws Exception {
assertEquals(true, timer.getIdleNanos() < ONE_MILLION);
Thread.sleep(10);
assertEquals(true, timer.getIdleNanos() > TEN_MILLION);
}
public void testStartTime() throws Exception {
long now = System.nanoTime();
long then = timer.getTimeOfLastActivity();
assertEquals("" + (now - then), true, now - then < ONE_MILLION); // less than 1 milisecond
}
@Test
public void testGetSeconds() throws InterruptedException {
final NanoTimer t = new NanoTimer();
Thread.sleep(1000);
assertEquals(1, t.getSeconds(), 0.01); // time = 1 second within .01 seconds tolerance
}
