[python] Fix nightly build

.chronus/changes/python-test-client-operation-group-to-client-2026-3-16-22-50-0.md

@@ -0,0 +1,7 @@
+---
+changeKind: internal
+packages:
+  - "@typespec/http-client-python"
+---
+
+Update test cases for Azure/typespec-azure#3997: replace `@operationGroup` with `@client` decorator changes. Remove deleted `multi-service-older-versions` tests and update client structure, naming tests to reflect new flat client hierarchy.

packages/http-client-python/.gitignore

@@ -7,3 +7,6 @@ generator/test/.diff-summary.md
 
 # Regeneration marker (tracks when generated code was last regenerated)
 .last-regenerate
+
+# local folder for debug
+alpha

packages/http-client-python/generator/test/azure/mock_api_tests/asynctests/test_client_naming_async.py

@@ -16,17 +16,17 @@ async def client():
 
 @pytest.mark.asyncio
 async def test_client(client: NamingClient):
-    await client.client(models.ClientNameModel(client_name=True))
+    await client.property.client(models.ClientNameModel(client_name=True))
 
 
 @pytest.mark.asyncio
 async def test_language(client: NamingClient):
-    await client.language(models.LanguageClientNameModel(python_name=True))
+    await client.property.language(models.LanguageClientNameModel(python_name=True))
 
 
 @pytest.mark.asyncio
 async def test_compatible_with_encoded_name(client: NamingClient):
-    await client.compatible_with_encoded_name(models.ClientNameAndJsonEncodedNameModel(client_name=True))
+    await client.property.compatible_with_encoded_name(models.ClientNameAndJsonEncodedNameModel(client_name=True))
 
 
 @pytest.mark.asyncio
@@ -41,12 +41,12 @@ async def test_parameter(client: NamingClient):
 
 @pytest.mark.asyncio
 async def test_header_request(client: NamingClient):
-    await client.request(client_name="true")
+    await client.header.request(client_name="true")
 
 
 @pytest.mark.asyncio
 async def test_header_response(client: NamingClient):
-    assert (await client.response(cls=lambda x, y, z: z))["default-name"] == "true"
+    assert (await client.header.response(cls=lambda x, y, z: z))["default-name"] == "true"
 
 
 @pytest.mark.asyncio

packages/http-client-python/generator/test/azure/mock_api_tests/asynctests/test_client_structure_async.py

@@ -45,18 +45,18 @@ async def test_structure_renamed_operation():
     await client.renamed_three()
     await client.renamed_five()
 
-    await client.group.renamed_two()
-    await client.group.renamed_four()
-    await client.group.renamed_six()
+    await client.renamed_two()
+    await client.renamed_four()
+    await client.renamed_six()
 
 
 @pytest.mark.asyncio
 async def test_structure_two_operation_group():
-    client = TwoOperationGroupClient(endpoint="http://localhost:3000", client=ClientType.RENAMED_OPERATION)
-    await client.group1.one()
-    await client.group1.three()
-    await client.group1.four()
-
-    await client.group2.two()
-    await client.group2.five()
-    await client.group2.six()
+    client = TwoOperationGroupClient(endpoint="http://localhost:3000", client=ClientType.TWO_OPERATION_GROUP)
+    await client.one()
+    await client.three()
+    await client.four()
+
+    await client.two()
+    await client.five()
+    await client.six()

packages/http-client-python/generator/test/azure/mock_api_tests/asynctests/test_client_structure_clientoperationgroup_async.py

@@ -14,10 +14,10 @@ async def test_first_client_operations():
 
     await client.one()
 
-    await client.group3.two()
-    await client.group3.three()
+    await client.two()
+    await client.three()
 
-    await client.group4.four()
+    await client.four()
 
 
 @pytest.mark.asyncio
@@ -26,4 +26,4 @@ async def test_second_client_operations():
 
     await client.five()
 
-    await client.group5.six()
+    await client.six()

packages/http-client-python/generator/test/azure/mock_api_tests/test_client_naming.py

@@ -14,15 +14,15 @@ def client():
 
 
 def test_client(client: NamingClient):
-    client.client(models.ClientNameModel(client_name=True))
+    client.property.client(models.ClientNameModel(client_name=True))
 
 
 def test_language(client: NamingClient):
-    client.language(models.LanguageClientNameModel(python_name=True))
+    client.property.language(models.LanguageClientNameModel(python_name=True))
 
 
 def test_compatible_with_encoded_name(client: NamingClient):
-    client.compatible_with_encoded_name(models.ClientNameAndJsonEncodedNameModel(client_name=True))
+    client.property.compatible_with_encoded_name(models.ClientNameAndJsonEncodedNameModel(client_name=True))
 
 
 def test_operation(client: NamingClient):
@@ -34,11 +34,11 @@ def test_parameter(client: NamingClient):
 
 
 def test_header_request(client: NamingClient):
-    client.request(client_name="true")
+    client.header.request(client_name="true")
 
 
 def test_header_response(client: NamingClient):
-    assert client.response(cls=lambda x, y, z: z)["default-name"] == "true"
+    assert client.header.response(cls=lambda x, y, z: z)["default-name"] == "true"
 
 
 def test_model_client(client: NamingClient):

packages/http-client-python/generator/test/azure/mock_api_tests/test_client_structure.py

@@ -41,17 +41,17 @@ def test_structure_renamed_operation():
     client.renamed_three()
     client.renamed_five()
 
-    client.group.renamed_two()
-    client.group.renamed_four()
-    client.group.renamed_six()
+    client.renamed_two()
+    client.renamed_four()
+    client.renamed_six()
 
 
 def test_structure_two_operation_group():
     client = TwoOperationGroupClient(endpoint="http://localhost:3000", client=ClientType.TWO_OPERATION_GROUP)
-    client.group1.one()
-    client.group1.three()
-    client.group1.four()
+    client.one()
+    client.three()
+    client.four()
 
-    client.group2.two()
-    client.group2.five()
-    client.group2.six()
+    client.two()
+    client.five()
+    client.six()