public function combineLatest_throw_never()
{
$error = new \Exception();
$e1 = new NeverObservable();
$e2 = $this->createHotObservable([onNext(150, 1), onError(220, $error)]);
$results = $this->scheduler->startWithCreate(function () use($e1, $e2) {
return $e2->combineLatest([$e1], [$this, 'add']);
});
$this->assertMessages([onError(220, $error)], $results->getMessages());
}