See date is not a Monday.

@param string $date
516845
public function dontSeeDateIsMonday($date) {
        \PHPUnit_Framework_Assert::assertFalse($this->_ParseDate($date)->dayOfWeek == Carbon::MONDAY);
    }
886109
public function setTimeFrom($date)
    {
        $date = static::instance($date);

        $this->setTime($date->hour, $date->minute, $date->second);

        return $this;
    }
151089
protected function isYesterday(DateTime $date)
    {
        $yesterday = new DateTime('-1 day');
        $start = new DateTime($yesterday->format('Y-m-d') . ' 00:00:00');
        $end   = new DateTime($yesterday->format('Y-m-d') . ' 23:59:59');

        if ($date->getTimestamp() >= $start->getTimestamp() && $date->getTimestamp() <= $end->getTimestamp()) {
            return true;
        }
        return false;
    }
1286015
public function usedVATOnDate($date)
    {
        $period = $this->getPeriod($date);

        return !is_null($period) && !empty($period->getStandardRate());
    }
731372
private static function _utcZeroDateTime($date){

		$date = static::_nullValue($date);

		if($date === null){

			return $date;
		}

		$UTC = new DateTimeZone('UTC');
		$Date = new DateTime($date, $UTC);
		$Date->setTimezone($UTC);

		return $Date;
	}
457328
public function seeDateIsFriday($date) {
        \PHPUnit_Framework_Assert::assertTrue($this->_ParseDate($date)->dayOfWeek == Carbon::FRIDAY);
    }
121689
public function hasStatementForDate($date)
    {
        if (is_string($date)) {
            $date = new \DateTime($date);
        }

        return null !== $this->getStatementForDate($date);
    }
1063215
public function parse($date)
	{
		foreach ($this->user as $method)
		{
			if (($returned = call_user_func($method, $date)) !== false)
			{
				return $returned;
			}
		}

		foreach ($this->built_in as $method)
		{
			if (($returned = call_user_func(array($this, $method), $date)) !== false)
			{
				return $returned;
			}
		}

		return false;
	}
921811
public function days($date = null)
	{
		return is_string($date) ? (new \DateTime($date, self::$utc))->diff($this->date)->days : $date->diff($this->date)->days;
	}
814125
public function dontSeeDayInYear($date, $day) {
        \PHPUnit_Framework_Assert::assertNotEquals($day, $this->_ParseDate($date)->dayOfYear);
    }
592433
public function dontSeeDateIsSaturday($date) {
        \PHPUnit_Framework_Assert::assertFalse($this->_ParseDate($date)->dayOfWeek == Carbon::SATURDAY);
    }
683556
protected static function formatDate($date)
    {
        $d = \DateTime::createFromFormat('Y-m-d', $date);
        if (!$d) {
            $d = \DateTime::createFromFormat('Y-m-d H:i:s', $date);
        }
        return ($d ? $d->format('d/m/Y') : $date);
    }
680803
public function dateTo(string $date): Date
    {
        $dates = explode('-', $date);
        if (count($dates) != 3) {
            throw new \InvalidArgumentException(
                    'Given date "' . $date . '" does not follow required format YYYY-MM-DD'
            );
        }

        list($year, $month, $day) = $dates;
        if (!ctype_digit($year)) {
            throw new \InvalidArgumentException(
                    'Given value ' . $year . ' for year not suitable for changing the date.'
            );
        }

        if (!ctype_digit($month) || 1 > $month || 12 < $month) {
            throw new \InvalidArgumentException(
                    'Given value ' . $month . ' for month not suitable for changing the date.'
            );
        }

        if (!ctype_digit($day) || 1 > $day || 31 < $day) {
            throw new \InvalidArgumentException(
                    'Given value ' . $day . ' for day not suitable for changing the date.'
            );
        }

        return $this->createNewDateWithExistingTime((int) $year, (int) $month, (int) $day);
    }
3556
private function isValidFormat($date)
    {
        foreach ($this->formats as $format) {
            if (date($format, strtotime($date)) == $date) {
                return true;
            }
        }

        return false;
    }
1309824
public function seeWeekInMonth($date, $week) {
        \PHPUnit_Framework_Assert::assertEquals($week, $this->_ParseDate($date)->weekOfMonth);
    }
1169297
public function date($date=null)
    {
        if(is_null($date)) {
            $date = $this->created_at;
        }
        return String::date($date);
    }
714447
function validateDate($date = NULL)
    {
        if (!is_array($this->currentCert) || !isset($this->currentCert['tbsCertificate'])) {
            return false;
        }

        if (!isset($date)) {
            $date = time();
        }

        $notBefore = $this->currentCert['tbsCertificate']['validity']['notBefore'];
        $notBefore = isset($notBefore['generalTime']) ? $notBefore['generalTime'] : $notBefore['utcTime'];

        $notAfter = $this->currentCert['tbsCertificate']['validity']['notAfter'];
        $notAfter = isset($notAfter['generalTime']) ? $notAfter['generalTime'] : $notAfter['utcTime'];

        switch (true) {
            case $date < @strtotime($notBefore):
            case $date > @strtotime($notAfter):
                return false;
        }

        return true;
    }