public function takeWhile_zero()
{
$xs = $this->createHotObservable([onNext(90, -1), onNext(110, -1), onNext(205, 100), onNext(210, 2), onNext(260, 5), onNext(290, 13), onNext(320, 3), onNext(350, 7), onNext(390, 4), onNext(410, 17), onNext(450, 8), onNext(500, 23), onCompleted(600)]);
$invoked = 0;
$results = $this->scheduler->startWithDispose(function () use($xs, &$invoked) {
return $xs->takeWhile(function ($x) use(&$invoked) {
$invoked++;
return $this->isPrime($x);
});
}, 300);
$this->assertMessages([onCompleted(205)], $results->getMessages());
$this->assertSubscriptions([subscribe(200, 205)], $xs->getSubscriptions());
$this->assertEquals(1, $invoked);
}