conferencetools / tickets-module

        $sut->compare($price1);

    }

    public function testAdd()

    {

        $price = Price::fromNetCost(new Money(10, 'GBP'), new TaxRate(20));

        $sut = (Price::fromNetCost(new Money(10, 'GBP'), new TaxRate(20)))->add($price);

        self::assertTrue($sut->getNet()->equals(new Money(20, 'GBP')), 'Values did not add up');

    }

    public function testSubtract()

    {

        self::assertTrue($sut->getNet()->equals(new Money(20, 'GBP')), 'Values did not add up');

    }

    public function testSubtract()

    {

        $price = Price::fromNetCost(new Money(5, 'GBP'), new TaxRate(20));

        $sut = (Price::fromNetCost(new Money(10, 'GBP'), new TaxRate(20)))->subtract($price);

        self::assertTrue($sut->getNet()->equals(new Money(5, 'GBP')), 'Value not subtracted');

    }

    public function testMultiply()

    {