Respect\Validation\Rules\Factor::isValid()

Complexity

Conditions	5
Paths	3

Size

Total Lines	19
Code Lines	7

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	8
CRAP Score	5

Importance

Changes

0

<?php
    public function isValid($input): bool
    {
        // Every integer is a factor of zero, and zero is the only integer that
        // has zero for a factor.
        if (0 === $this->dividend) {
            return true;
        }

        // Factors must be integers that are not zero.
        if (!is_numeric($input) || (int) $input != $input || 0 == $input) {
            return false;
        }

        $input = (int) abs($input);
        $dividend = (int) abs($this->dividend);

        // The dividend divided by the input must be an integer if input is a
        // factor of the dividend.
        return is_integer($dividend / $input);
    }