public function testIsDue()
{
Carbon::setTestNow(Carbon::create(2015, 4, 12, 0, 0, 0));
$e = new Event($this->id, 'php foo');
$this->assertTrue($e->sundays()->isDue());
$e = new Event($this->id, 'php bar');
$this->assertEquals('0 19 * * 6 *', $e->saturdays()->at('19:00')->timezone('EST')->getExpression());
$this->assertTrue($e->isDue());
}