public function testThrottle()
{
// from js
$counter = 0;
$incr = function () use(&$counter) {
$counter++;
};
$throttledIncr = __::throttle($incr, 100);
$throttledIncr();
$throttledIncr();
$throttledIncr();
usleep(120 * 1000);
$throttledIncr();
usleep(140 * 1000);
$throttledIncr();
usleep(220 * 1000);
$throttledIncr();
usleep(240 * 1000);
$throttledIncr();
$this->assertEquals(5, $counter, 'incr was throttled');
usleep(500 * 1000);
$counter = 0;
$incr = function () use(&$counter) {
$counter++;
};
$throttledIncr = __::throttle($incr, 100);
$throttledIncr();
usleep(220 * 1000);
$this->assertEquals(1, $counter, 'incr called once');
usleep(500 * 1000);
$counter = 0;
$incr = function () use(&$counter) {
$counter++;
};
$throttledIncr = __::throttle($incr, 100);
$throttledIncr();
$throttledIncr();
usleep(220 * 1000);
$this->assertEquals(1, $counter, 'incr called twice');
}