/** * Here we add a new nextTick function as we're in the middle of a current * nextTick. */ function testNextTickStacking() { $loop = new Loop(); $check = 0; $loop->nextTick(function () use(&$check, $loop) { $loop->nextTick(function () use(&$check) { $check++; }); $check++; }); $loop->run(); $this->assertEquals(2, $check); }