R524809
244 lines
7.9 KiB
TypeScript
244 lines
7.9 KiB
TypeScript
import { describe, it, expect } from 'vitest';
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import {
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calculatePricing,
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type LogisticsRule,
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type CommissionRule,
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} from '../src/pricing/pricing-engine.js';
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import { pricingPreviewRequestSchema, pricingInputKey } from '@atlas/contracts';
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const id = 'ad877f74-36d0-4ef9-a711-cd904b37912f';
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const input = () =>
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pricingPreviewRequestSchema.parse({
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store_id: id,
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platform_product_category_id: id,
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fulfillment: 'rfbs',
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purchase_cost_cny: '28',
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package: {
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shipping_weight_g: '380',
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length_mm: '220',
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width_mm: '160',
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height_mm: '90',
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status: 'confirmed',
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},
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pricing: {
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rate_card_id: id,
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transport_method_ids: [id],
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default_transport_method_id: id,
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domestic_shipping_and_label_fee_cny: '3',
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ad_rate: '0.03',
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last_mile_rate: '0.02',
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withdrawal_rate: '0.01',
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other_rate: '0.02',
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desired_markup_rate: '0.5',
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list_price_discount_rate: '0.2',
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},
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});
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const rule: LogisticsRule = {
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id,
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product_type_id: id,
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transport_method_id: id,
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transport_name: '标准',
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product_type_name: 'ExtraSmall',
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fixed_fee_cny: '3.12',
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per_billable_kg_fee_cny: '36.4',
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min_charge_cny: null,
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surcharge_rules: [],
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merchandise_currency_code: 'CNY',
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min_merchandise_value: null,
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max_merchandise_value: '135',
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min_value_inclusive: true,
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max_value_inclusive: true,
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min_actual_weight_kg: '0.001',
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min_actual_weight_inclusive: true,
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max_actual_weight_kg: '0.5',
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max_sum_dimensions_cm: '90',
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max_longest_side_cm: '60',
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max_second_longest_side_cm: null,
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billing_basis: 'actual_only',
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volume_divisor: null,
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volume_condition_sum_gt_cm: null,
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volume_round_scale: null,
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billing_round_scale: null,
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max_volume_weight_kg: null,
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volume_limit_round_scale: null,
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};
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const commission: CommissionRule = {
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id,
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currency_code: 'RUB',
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min_price: null,
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max_price: null,
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min_inclusive: true,
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max_inclusive: true,
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commission_rate: '0.12',
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version: 'test',
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};
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describe('十进制定价引擎', () => {
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it('目标加价与明细一致，CNY / RUB 都按最终币种舍入', () => {
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const c = calculatePricing(input(), 'CNY', '12.3', [rule], [commission])
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.options[0];
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expect(c.selling_price).toBe('77.44');
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expect(c.profit_cny).toBe('14.00');
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expect(c.list_price).toBe('96.80');
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expect(c.fees.logistics_cny).toBe('16.9520');
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const rub = calculatePricing(
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input(),
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'RUB',
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'12.3',
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[rule],
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[commission],
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).options[0];
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expect(rub.selling_price).toBe('952.52');
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expect(rub.can_confirm).toBe(true);
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});
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it('固定售价保持原价并识别亏损', () => {
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const i = input();
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i.pricing.mode = 'fixed_sale';
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i.pricing.selling_price = '10';
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const o = calculatePricing(i, 'CNY', '12.3', [rule], [commission])
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.options[0];
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expect(o.selling_price).toBe('10.00');
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expect(o.can_confirm).toBe(false);
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expect(Number(o.profit_cny)).toBeLessThan(0);
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});
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it('实际重、尺寸和开区间边界精确生效', () => {
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const i = input();
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i.package.shipping_weight_g = '500';
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expect(
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calculatePricing(i, 'CNY', '12.3', [rule], [commission]).options,
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).toHaveLength(1);
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i.package.shipping_weight_g = '500.001';
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expect(
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calculatePricing(i, 'CNY', '12.3', [rule], [commission]).options,
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).toHaveLength(0);
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i.package.shipping_weight_g = '380';
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expect(
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calculatePricing(
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i,
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'CNY',
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'12.3',
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[
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{
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...rule,
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min_actual_weight_kg: '0.380',
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min_actual_weight_inclusive: false,
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},
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],
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[commission],
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).options,
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).toHaveLength(0);
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});
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it('先舍入售价再检查货值及佣金档，不跨档蒙混', () => {
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const i = input();
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expect(
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calculatePricing(
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i,
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'CNY',
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'12.3',
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[{ ...rule, max_merchandise_value: '77.439' }],
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[commission],
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).options,
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).toHaveLength(0);
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expect(
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calculatePricing(
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i,
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'CNY',
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'12.3',
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[rule],
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[{ ...commission, max_price: '952.51' }],
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).options,
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).toHaveLength(0);
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});
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it('总费率达到 100% 拒绝，未知附加费不能漏算', () => {
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const i = input();
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i.pricing.ad_rate = '0.9';
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expect(
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calculatePricing(i, 'CNY', '12.3', [rule], [commission]).options,
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).toHaveLength(0);
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expect(
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calculatePricing(
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input(),
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'CNY',
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'12.3',
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[{ ...rule, surcharge_rules: [{ unknown: true }] }],
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[commission],
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).options,
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).toHaveLength(0);
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});
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it('体积重按指定位数进位并检查进位后的上限', () => {
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const i = input();
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i.package = {
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shipping_weight_g: '5000',
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length_mm: '500',
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width_mm: '400',
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height_mm: '301',
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status: 'confirmed',
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};
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const volume = {
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...rule,
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max_actual_weight_kg: '30',
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max_sum_dimensions_cm: '310',
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billing_basis: 'max_actual_volume',
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volume_divisor: '12000',
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volume_round_scale: 3,
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max_volume_weight_kg: '6',
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volume_limit_round_scale: 0,
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};
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expect(
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calculatePricing(
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i,
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'CNY',
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'12.3',
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[{ ...volume, max_merchandise_value: null }],
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[commission],
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).options[0].billable_weight_kg,
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).toBe('5.017');
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expect(
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calculatePricing(
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i,
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'CNY',
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'12.3',
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[{ ...volume, max_volume_weight_kg: '5' }],
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[commission],
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).options,
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).toHaveLength(0);
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});
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it('默认运输失效时不偷偷选择其他方式', () => {
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const i = input();
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i.pricing.default_transport_method_id =
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'8d6df67c-1fa3-45b9-9766-d4f5c813b903';
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expect(
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calculatePricing(i, 'CNY', '12.3', [rule], [commission])
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.recommended_option_id,
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).toBeNull();
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});
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it('格式化金额与 JSONB 字段重排不会使同一输入失效', () => {
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const original = input();
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const reordered = JSON.parse(
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JSON.stringify(original, (_key, value) =>
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value && typeof value === 'object' && !Array.isArray(value)
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? Object.fromEntries(Object.entries(value).reverse())
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: value,
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),
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);
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reordered.purchase_cost_cny = '28.00';
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reordered.package.shipping_weight_g = '380.000';
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reordered.pricing.ad_rate = '0.030000';
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expect(pricingInputKey(original)).toBe(pricingInputKey(reordered));
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reordered.package.length_mm = '221';
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expect(pricingInputKey(original)).not.toBe(pricingInputKey(reordered));
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});
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it('显示利润舍入为零时，真实微亏仍禁止确认', () => {
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const i = input();
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i.pricing.mode = 'fixed_sale';
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i.pricing.selling_price = '59.94';
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const option = calculatePricing(
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i,
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'CNY',
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'12.3',
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[{ ...rule, fixed_fee_cny: '3.121' }],
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[commission],
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).options[0];
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expect(option.profit_cny).toBe('-0.00');
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expect(option.can_confirm).toBe(false);
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});
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});
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