feat(configurator): totals = one tax on (subtotal + charge)

fusion_plating/fusion_plating_configurator/tests/test_charge_tax_lot.py

@@ -28,3 +28,19 @@ class TestChargeTaxLot(TransactionCase):
         self.assertEqual(ct.default_amount, 75.0)
         cid, cname = self.env['fp.additional.charge.type'].name_create('Setup')
         self.assertTrue(cid)
+
+    # ----- Task 3: totals -----
+    def _make_wizard(self, **kw):
+        vals = {'partner_id': self.partner.id}
+        vals.update(kw)
+        return self.env['fp.direct.order.wizard'].create(vals)
+
+    def test_tax_applies_on_subtotal_plus_charge(self):
+        wiz = self._make_wizard(charge_amount=100.0, tax_id=self.tax13.id)
+        self.env['fp.direct.order.line'].create({
+            'wizard_id': wiz.id, 'quantity': 1, 'unit_price': 50.0,
+        })
+        wiz.invalidate_recordset()
+        self.assertEqual(wiz.total_subtotal, 50.0)
+        self.assertAlmostEqual(wiz.total_tax, 19.5, places=2)
+        self.assertAlmostEqual(wiz.total_amount, 169.5, places=2)