Add fulfillment, payment, and return policy management methods to AccountClient; enhance tests for policy retrieval and manipulation

tests/test_public_wrappers.py

@@ -9,7 +9,15 @@ from ebay_client.core.auth.models import OAuthToken
 from ebay_client.core.http.transport import ApiTransport
 from ebay_client.feed.client import FeedClient
 from ebay_client.fulfillment.client import FulfillmentClient
-from ebay_client.generated.account.models import Programs
+from ebay_client.generated.account.models import (
+    FulfillmentPolicy,
+    FulfillmentPolicyRequest,
+    PaymentPolicy,
+    PaymentPolicyRequest,
+    Programs,
+    ReturnPolicy,
+    ReturnPolicyRequest,
+)
 from ebay_client.generated.feed.models import TaskCollection
 from ebay_client.generated.fulfillment.models import Order
 from ebay_client.generated.inventory.models import InventoryItemWithSkuLocaleGroupid
@@ -290,6 +298,99 @@ def test_account_wrapper_returns_programs_model(httpx_mock: HTTPXMock) -> None:
     assert result.programs and result.programs[0].programType == "OUT_OF_STOCK_CONTROL"
 
 
+def test_account_wrapper_returns_policy_models_by_id_and_name(httpx_mock: HTTPXMock) -> None:
+    httpx_mock.add_response(
+        method="GET",
+        url="https://api.ebay.com/sell/account/v1/fulfillment_policy/FULFILL-1",
+        json={"fulfillmentPolicyId": "FULFILL-1", "name": "Fast shipping"},
+    )
+    httpx_mock.add_response(
+        method="GET",
+        url="https://api.ebay.com/sell/account/v1/payment_policy/get_by_policy_name?marketplace_id=EBAY_US&name=Default%20payment",
+        json={"paymentPolicyId": "PAY-1", "name": "Default payment"},
+    )
+    httpx_mock.add_response(
+        method="GET",
+        url="https://api.ebay.com/sell/account/v1/return_policy/get_by_policy_name?marketplace_id=EBAY_US&name=30%20day%20returns",
+        json={"returnPolicyId": "RET-1", "name": "30 day returns"},
+    )
+
+    client = AccountClient(build_transport())
+    fulfillment = client.get_fulfillment_policy("FULFILL-1")
+    payment = client.get_payment_policy_by_name(marketplace_id="EBAY_US", name="Default payment")
+    returns = client.get_return_policy_by_name(marketplace_id="EBAY_US", name="30 day returns")
+
+    assert isinstance(fulfillment, FulfillmentPolicy)
+    assert fulfillment.fulfillmentPolicyId == "FULFILL-1"
+    assert isinstance(payment, PaymentPolicy)
+    assert payment.paymentPolicyId == "PAY-1"
+    assert isinstance(returns, ReturnPolicy)
+    assert returns.returnPolicyId == "RET-1"
+
+
+def test_account_wrapper_serializes_policy_requests_and_delete(httpx_mock: HTTPXMock) -> None:
+    httpx_mock.add_response(
+        method="POST",
+        url="https://api.ebay.com/sell/account/v1/payment_policy",
+        json={"paymentPolicyId": "PAY-NEW"},
+        status_code=201,
+    )
+    httpx_mock.add_response(
+        method="PUT",
+        url="https://api.ebay.com/sell/account/v1/fulfillment_policy/FULFILL-1",
+        json={"fulfillmentPolicyId": "FULFILL-1"},
+        status_code=200,
+    )
+    httpx_mock.add_response(
+        method="DELETE",
+        url="https://api.ebay.com/sell/account/v1/return_policy/RET-1",
+        status_code=204,
+    )
+
+    client = AccountClient(build_transport())
+    payment_payload = PaymentPolicyRequest(name="Default payment")
+    fulfillment_payload = FulfillmentPolicyRequest(name="Fast shipping")
+
+    created_payment = client.create_payment_policy(payment_payload)
+    updated_fulfillment = client.update_fulfillment_policy("FULFILL-1", fulfillment_payload)
+    client.delete_return_policy("RET-1")
+
+    assert created_payment.paymentPolicyId == "PAY-NEW"
+    assert updated_fulfillment.fulfillmentPolicyId == "FULFILL-1"
+
+    create_request = httpx_mock.get_requests()[0]
+    create_body = json.loads(create_request.content.decode("utf-8"))
+    assert create_body["name"] == "Default payment"
+
+    update_request = httpx_mock.get_requests()[1]
+    update_body = json.loads(update_request.content.decode("utf-8"))
+    assert update_body["name"] == "Fast shipping"
+
+
+def test_account_wrapper_supports_return_policy_create_and_update(httpx_mock: HTTPXMock) -> None:
+    httpx_mock.add_response(
+        method="POST",
+        url="https://api.ebay.com/sell/account/v1/return_policy",
+        json={"returnPolicyId": "RET-NEW"},
+        status_code=201,
+    )
+    httpx_mock.add_response(
+        method="PUT",
+        url="https://api.ebay.com/sell/account/v1/return_policy/RET-NEW",
+        json={"returnPolicyId": "RET-NEW"},
+        status_code=200,
+    )
+
+    client = AccountClient(build_transport())
+    payload = ReturnPolicyRequest(name="30 day returns")
+
+    created = client.create_return_policy(payload)
+    updated = client.update_return_policy("RET-NEW", payload)
+
+    assert created.returnPolicyId == "RET-NEW"
+    assert updated.returnPolicyId == "RET-NEW"
+
+
 def test_feed_wrapper_returns_task_collection_model(httpx_mock: HTTPXMock) -> None:
     httpx_mock.add_response(
         method="GET",