优化

tests/return-receipt-page.test.mjs

@@ -70,7 +70,17 @@ test('parcel signing allows an empty code but still rejects quantities above the
   await page.confirmReceipt()
   assert.equal(calls.length, 1)
   assert.equal(calls[0].trackingNo, undefined)
-  assert.equal(calls[0].unitCode, '')
+  assert.equal(calls[0].unitCode, undefined)
+  assert.equal(calls[0].palletCode, undefined)
+})
+
+test('parcel waybill is submitted as trackingNo and leaves unitCode for the server', async () => {
+  const calls = []
+  const page = setup(async payload => { calls.push(payload); return { unitType: 'PARCEL' } })
+  page.unitType = 'PARCEL'; page.unitCode = ' sf561626 '; page.trackingNo = 'stale-from-pallet'
+  await page.confirmReceipt()
+  assert.equal(calls[0].trackingNo, 'sf561626')
+  assert.equal(calls[0].unitCode, undefined)
   assert.equal(calls[0].palletCode, undefined)
 })