setDiscountRules example

$amount = 100;
        $operator = '=';

        $discountFilter = $this->getFakeRule($amount, $operator);

        $discountRuleEntity = new RuleEntity();
        $discountRuleEntity->setId('foo');
        $discountRuleEntity->setPayload($discountFilter);

        $ruleCollection = new RuleCollection();
        $ruleCollection->add($discountRuleEntity);
        $discount->setDiscountRules($ruleCollection);

        $expectedRule = new OrRule();
        $expectedRule->addRule($discountFilter);

        $item = $builder->buildDiscountLineItem('', $this->promotion, $discount, 'C1', $currencyFactor);

        static::assertInstanceOf(AbsolutePriceDefinition::class, $item->getPriceDefinition());
        static::assertEquals($expectedRule, $item->getPriceDefinition()->getFilter());
    }

    /** * This test verifies that the correct discount filter * is set in the discountItemBuilder * * @group promotions */

$discount = new PromotionDiscountEntity();
        $discount->setId('D5');
        $discount->setType(PromotionDiscountEntity::TYPE_ABSOLUTE);
        $discount->setValue(50);
        $discount->setConsiderAdvancedRules(true);
        $discount->setScope(PromotionDiscountEntity::SCOPE_CART);

        $currencyFactor = 0.3;

        $ruleCollection = new RuleCollection();
        $discount->setDiscountRules($ruleCollection);

        $item = $builder->buildDiscountLineItem('my-Code-123', $this->promotion, $discount, 'C1', $currencyFactor);

        $expected = [
            'promotionId' => 'PR-1',
            'discountId' => 'D5',
            'code' => 'my-Code-123',
            'discountType' => 'absolute',
            'value' => '50',
            'maxValue' => '',
            'discountScope' => 'cart',