baseline: 批次A-D 成果 + membership 半成品（测试红）

2026-09-11 23:11:35 +08:00
commit b3f3095d53
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+import test from 'node:test'
+import assert from 'node:assert/strict'
+import {
+  unitRate,
+  isValidQuantity,
+  isValidPrice,
+  lineAmount,
+  baseUnitPrice,
+} from '../src/utils/transaction.js'
+
+test('source-unit pricing converts exactly once', () => {
+  const row = {
+    source_unit: 7,
+    units: [{ unit_id: 7, rate: 24 }],
+    quantity: 2,
+    unit_price: 120,
+  }
+
+  assert.equal(unitRate(row), 24)
+  assert.equal(lineAmount(row), 240)
+  assert.equal(baseUnitPrice(row), 5)
+})
+
+test('base-unit rows keep their entered amount', () => {
+  const row = { source_unit: null, quantity: 3, unit_price: 12.5, units: [] }
+
+  assert.equal(unitRate(row), 1)
+  assert.equal(lineAmount(row), 37.5)
+  assert.equal(baseUnitPrice(row), 12.5)
+})
+
+test('quantity and price validators reject non-finite or out-of-range values', () => {
+  assert.equal(isValidQuantity({ quantity: 0.001 }), true)
+  assert.equal(isValidQuantity({ quantity: 0 }), false)
+  assert.equal(isValidQuantity({ quantity: Number.NaN }), false)
+  assert.equal(isValidQuantity({ quantity: 1e9 + 1 }), false)
+
+  assert.equal(isValidPrice({ unit_price: 0.01 }), true)
+  assert.equal(isValidPrice({ unit_price: 0 }), false)
+  assert.equal(isValidPrice({ unit_price: Number.POSITIVE_INFINITY }), false)
+  assert.equal(isValidPrice({ unit_price: 1e9 + 1 }), false)
+})