Begin implementing better payment simulation

core/tests/test_money.py

@@ -237,3 +237,20 @@ class TestMoney(AggregatorPlatformMixin, TransactionTestCase):
                         amount, expected_requisition[wallets_requisition.index(wallet)]
                     )
                     self.assertIn("Requisition", detail)
+
+    def test_collapse_pay_list(self):
+        self.create_wallets()
+        test_data = {
+            "WALLET1": [
+                (500.0, "Operator cut for 2 of 1 operators, total 1000.0"),
+                (500.0, "Operator cut for 1 of 2 operators, total 1000.0"),
+            ],
+            "WALLET2": [(0.0, "Platform Live cut for 1 of 1 payees, total 500.0")],
+        }
+        expected = {
+            "WALLET1": 1000.0,
+            "WALLET2": 0.0,
+        }
+
+        collapsed = money.collapse_pay_list(test_data)
+        self.assertDictEqual(collapsed, expected)