JBZoo\PHPUnit\VarsTest::testIsNegative PHP 메소드

    public function testIsNegative()
    {
        isTrue(Vars::isNegative(-1));
        isTrue(Vars::isNegative(-384));
        isFalse(Vars::isNegative(0));
        isFalse(Vars::isNegative(34));
    }