各类修复

longz

2026-07-29 7858ae894c398f2f9248ac898b2ff200fa36225d

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package com.ruoyi.order.service.impl;
 
import com.ruoyi.other.api.domain.TCoupon;
import org.junit.jupiter.api.Test;
 
import java.math.BigDecimal;
 
import static org.junit.jupiter.api.Assertions.assertEquals;
 
class ChargingCouponSupportTest {
 
    @Test
    void couponDoesNotReducePrepayment() {
        TCoupon coupon = chargingCoupon(1);
        coupon.setMeetTheConditions(new BigDecimal("30"));
        coupon.setDiscountAmount(new BigDecimal("10"));
 
        BigDecimal paymentAmount = ChargingCouponSupport.calculatePrepaymentAmount(new BigDecimal("30"), false);
 
        assertEquals(new BigDecimal("30.00"), paymentAmount);
    }
 
    @Test
    void legacyUpfrontDiscountOrderUsesActuallyCollectedAmountAsRefundBase() {
        BigDecimal prepayment = ChargingCouponSupport.resolveSettlementPrepayment(
                new BigDecimal("30"), BigDecimal.ZERO, new BigDecimal("20"), new BigDecimal("10"));
 
        assertEquals(new BigDecimal("20"), prepayment);
    }
 
    @Test
    void fullReductionCannotDiscountElectricity() {
        TCoupon coupon = chargingCoupon(1);
        coupon.setMeetTheConditions(new BigDecimal("10"));
        coupon.setDiscountAmount(new BigDecimal("10"));
 
        BigDecimal discount = ChargingCouponSupport.calculateSettlementDiscount(
                coupon, new BigDecimal("15"), new BigDecimal("3"));
 
        assertEquals(new BigDecimal("3.0000"), discount);
    }
 
    @Test
    void percentageDiscountHonorsMaximumDiscountAndServiceCharge() {
        TCoupon coupon = chargingCoupon(2);
        coupon.setMeetTheConditions(new BigDecimal("10"));
        coupon.setDiscount(new BigDecimal("8"));
        coupon.setMaximumDiscountAmount(new BigDecimal("1.50"));
 
        BigDecimal discount = ChargingCouponSupport.calculateSettlementDiscount(
                coupon, new BigDecimal("10"), new BigDecimal("5"));
 
        assertEquals(new BigDecimal("1.5000"), discount);
    }
 
    @Test
    void couponBelowActualSettlementThresholdIsNotUsed() {
        TCoupon coupon = chargingCoupon(1);
        coupon.setMeetTheConditions(new BigDecimal("30"));
        coupon.setDiscountAmount(new BigDecimal("1"));
 
        BigDecimal discount = ChargingCouponSupport.calculateSettlementDiscount(
                coupon, new BigDecimal("29.99"), new BigDecimal("5"));
 
        assertEquals(new BigDecimal("0.0000"), discount);
    }
 
    @Test
    void nonFullWhitelistOnlyWaivesServiceCharge() {
        BigDecimal[] split = ChargingCouponSupport.calculateWhitelistRefundSplit(
                true, false, new BigDecimal("10"), new BigDecimal("5"));
 
        assertEquals(BigDecimal.ZERO, split[0]);
        assertEquals(new BigDecimal("5"), split[1]);
    }
 
    @Test
    void fullWhitelistWaivesElectricityAndServiceCharge() {
        BigDecimal[] split = ChargingCouponSupport.calculateWhitelistRefundSplit(
                true, true, new BigDecimal("10"), new BigDecimal("5"));
 
        assertEquals(new BigDecimal("10"), split[0]);
        assertEquals(new BigDecimal("5"), split[1]);
    }
 
    private TCoupon chargingCoupon(int preferentialMode) {
        TCoupon coupon = new TCoupon();
        coupon.setType(1);
        coupon.setPreferentialMode(preferentialMode);
        return coupon;
    }
}