@Test
public void testWindowToTime() {
long first = 1431714014000L;
for (int windowWidthMillis : new int[] {500, 123}) {
long time1 = WindowGenerator.getWindowMillis(6149164867354886271L, first, windowWidthMillis);
long time2 = WindowGenerator.getWindowMillis(6149164867354886272L, first, windowWidthMillis);
long window1 = WindowGenerator.getWindowId(time1, first, windowWidthMillis);
long window2 = WindowGenerator.getWindowId(time2, first, windowWidthMillis);
Assert.assertEquals("window 1", 6149164867354886271L, window1);
Assert.assertEquals("window 2", 6149164867354886272L, window2);
Assert.assertEquals("window millis difference", windowWidthMillis, time2 - time1);
}
}
@Test
public void testWindowIdCompare() {
long first = 1431714014123L;
int ahead = 341;
for (int windowWidthMillis : new int[] {500, 123}) {
long window1 = WindowGenerator.getWindowId(first, first, windowWidthMillis);
long window2 = WindowGenerator.getAheadWindowId(window1, first, windowWidthMillis, ahead);
Assert.assertEquals(
ahead, WindowGenerator.compareWindowId(window2, window1, first, windowWidthMillis));
}
}
@Test
public void testWindowIdAhead() {
long first = 1431714014123L;
int ahead = 678;
for (int windowWidthMillis : new int[] {500, 123}) {
long window1 = WindowGenerator.getWindowId(first, first, windowWidthMillis);
long window2 = WindowGenerator.getAheadWindowId(window1, first, windowWidthMillis, ahead);
for (int i = 0; i < ahead; i++) {
window1 = WindowGenerator.getNextWindowId(window1, first, windowWidthMillis);
}
Assert.assertEquals(window2, window1);
}
}
@Test
public void testWindowToTimeBaseSecondRollover() {
long first = 1431714014123L;
for (int windowWidthMillis : new int[] {500, 123}) {
long window1 = WindowGenerator.getWindowId(first, first, windowWidthMillis);
window1 |= WindowGenerator.MAX_WINDOW_ID;
long window2 = WindowGenerator.getNextWindowId(window1, first, windowWidthMillis);
Assert.assertTrue(
"base seconds should be greater during an rollover", (window2 >> 32) > (window1 >> 32));
long time1 = WindowGenerator.getWindowMillis(window1, first, windowWidthMillis);
long time2 = WindowGenerator.getWindowMillis(window2, first, windowWidthMillis);
Assert.assertEquals(
"max window id", WindowGenerator.MAX_WINDOW_ID, window1 & WindowGenerator.WINDOW_MASK);
Assert.assertEquals("rollover after max", 0, window2 & WindowGenerator.WINDOW_MASK);
Assert.assertEquals("window millis difference", windowWidthMillis, time2 - time1);
}
}
