public function testDaysLeft()
{
$this->assertEquals(11, DateUtils::daysLeft(1462380876, 1461380876));
$this->assertEquals(11, DateUtils::daysLeft(gmdate('Y-m-d', 1462380876), gmdate('Y-m-d', 1461380876)));
$this->assertEquals(18, DateUtils::daysLeft(new DateTime('2016-04-16'), new DateTime('2016-03-29')));
// On Past dates
$this->assertEquals(0, DateUtils::daysLeft(1461380876, 1462380876));
$this->assertEquals(0, DateUtils::daysLeft(gmdate('Y-m-d', 1461380876), gmdate('Y-m-d', 1462380876)));
$this->assertEquals(0, DateUtils::daysLeft(new DateTime('2016-03-29'), new DateTime('2016-04-16')));
$this->assertEquals(-11, DateUtils::daysLeft(1461380876, 1462380876, true));
$this->assertEquals(-11, DateUtils::daysLeft(gmdate('Y-m-d', 1461380876), gmdate('Y-m-d', 1462380876), true));
$this->assertEquals(-18, DateUtils::daysLeft(new DateTime('2016-03-29'), new DateTime('2016-04-16'), true));
$this->assertEquals(1, DateUtils::daysLeft(time() + DateUtils::DAY_IN_SECONDS));
}
