Bitpay\Math\BcEngineTest::testSub PHP Method

    public function testSub()
    {
        $a = 1234;
        $b = '1234123412341234123412341234123412412341234213412421341342342';
        $c = '0x1234123412341234123412341234123412412341234213412421341342342';
        $math = new BcEngine();
        $this->assertEquals(0, $math->sub($a, $a));
        $this->assertEquals('1234123412341234123412341234123412412341234213412421341341108', $math->sub($b, $a));
        $this->assertEquals('2010164296174493893887279757032336564542916106403683105277846450565757116', $math->sub($c, $b));
        $this->assertEquals(0, $math->sub(1, 1));
    }