[MPT-13831] Added billing credit memos endpoints

mpt_api_client/resources/billing/billing.py

@@ -1,4 +1,8 @@
 from mpt_api_client.http import AsyncHTTPClient, HTTPClient
+from mpt_api_client.resources.billing.credit_memos import (
+    AsyncCreditMemosService,
+    CreditMemosService,
+)
 from mpt_api_client.resources.billing.custom_ledgers import (
     AsyncCustomLedgersService,
     CustomLedgersService,
@@ -40,6 +44,11 @@ def custom_ledgers(self) -> CustomLedgersService:
         """Custom ledgers service."""
         return CustomLedgersService(http_client=self.http_client)
 
+    @property
+    def credit_memos(self) -> CreditMemosService:
+        """Credit Memos service."""
+        return CreditMemosService(http_client=self.http_client)
+
 
 class AsyncBilling:
     """Billing MPT API Module."""
@@ -71,3 +80,8 @@ def invoices(self) -> AsyncInvoicesService:
     def custom_ledgers(self) -> AsyncCustomLedgersService:
         """Custom ledgers service."""
         return AsyncCustomLedgersService(http_client=self.http_client)
+
+    @property
+    def credit_memos(self) -> AsyncCreditMemosService:
+        """Credit Memos service."""
+        return AsyncCreditMemosService(http_client=self.http_client)

mpt_api_client/resources/billing/credit_memos.py

@@ -0,0 +1,38 @@
+from mpt_api_client.http import AsyncService, Service
+from mpt_api_client.http.mixins import (
+    AsyncCreateMixin,
+    AsyncUpdateMixin,
+    CreateMixin,
+    UpdateMixin,
+)
+from mpt_api_client.models import Model
+
+
+class CreditMemo(Model):
+    """Credit Memo resource."""
+
+
+class CreditMemosServiceConfig:
+    """Credit Memos service configuration."""
+
+    _endpoint = "/public/v1/billing/credit-memos"
+    _model_class = CreditMemo
+    _collection_key = "data"
+
+
+class CreditMemosService(
+    CreateMixin[CreditMemo],
+    UpdateMixin[CreditMemo],
+    Service[CreditMemo],
+    CreditMemosServiceConfig,
+):
+    """Credit Memos service."""
+
+
+class AsyncCreditMemosService(
+    AsyncCreateMixin[CreditMemo],
+    AsyncUpdateMixin[CreditMemo],
+    AsyncService[CreditMemo],
+    CreditMemosServiceConfig,
+):
+    """Async Credit Memos service."""

tests/resources/billing/test_billing.py

@@ -1,6 +1,10 @@
 import pytest
 
 from mpt_api_client.resources.billing.billing import AsyncBilling, Billing
+from mpt_api_client.resources.billing.credit_memos import (
+    AsyncCreditMemosService,
+    CreditMemosService,
+)
 from mpt_api_client.resources.billing.custom_ledgers import (
     AsyncCustomLedgersService,
     CustomLedgersService,
@@ -29,6 +33,7 @@ def async_billing(async_http_client):
         ("statements", StatementsService),
         ("invoices", InvoicesService),
         ("custom_ledgers", CustomLedgersService),
+        ("credit_memos", CreditMemosService),
     ],
 )
 def test_billing_properties(billing, property_name, expected_service_class):
@@ -47,6 +52,7 @@ def test_billing_properties(billing, property_name, expected_service_class):
         ("statements", AsyncStatementsService),
         ("invoices", AsyncInvoicesService),
         ("custom_ledgers", AsyncCustomLedgersService),
+        ("credit_memos", AsyncCreditMemosService),
     ],
 )
 def test_async_billing_properties(async_billing, property_name, expected_service_class):

tests/resources/billing/test_credit_memos.py

@@ -0,0 +1,32 @@
+import pytest
+
+from mpt_api_client.resources.billing.credit_memos import (
+    AsyncCreditMemosService,
+    CreditMemosService,
+)
+
+
+@pytest.fixture
+def credit_memos_service(http_client):
+    return CreditMemosService(http_client=http_client)
+
+
+@pytest.fixture
+def async_credit_memos_service(async_http_client):
+    return AsyncCreditMemosService(http_client=async_http_client)
+
+
+@pytest.mark.parametrize(
+    "method",
+    ["get", "create", "update"],
+)
+def test_mixins_present(credit_memos_service, method):
+    assert hasattr(credit_memos_service, method)
+
+
+@pytest.mark.parametrize(
+    "method",
+    ["get", "create", "update"],
+)
+def test_async_mixins_present(async_credit_memos_service, method):
+    assert hasattr(async_credit_memos_service, method)