[python] Fix nightly build caused by breaking of TCGC

.chronus/changes/add-test-alternate-initial-verb-post-2026-3-18-22-38-49.md

@@ -0,0 +1,7 @@
+---
+changeKind: internal
+packages:
+  - "@typespec/http-client-python"
+---
+
+Add mock API test case for the `AlternateInitialVerb` POST pagination scenario where the initial request uses POST with a filter body and subsequent next link requests use GET.

.chronus/changes/skip-client-structure-tests-pending-tcgc-upgrade-2026-3-18.md

@@ -0,0 +1,7 @@
+---
+changeKind: internal
+packages:
+  - "@typespec/http-client-python"
+---
+
+Skip 8 failing client structure test cases pending `@azure-tools/typespec-client-generator-core` upgrade to 0.67.0

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

@@ -38,6 +38,7 @@ async def test_structure_multiclient():
     await client_b.renamed_six()
 
 
+@pytest.mark.skip(reason="will reopen the cases after upgrade `@azure-tools/typespec-client-generator-core` to 0.67.0")
 @pytest.mark.asyncio
 async def test_structure_renamed_operation():
     client = RenamedOperationClient(endpoint="http://localhost:3000", client=ClientType.RENAMED_OPERATION)
@@ -50,6 +51,7 @@ async def test_structure_renamed_operation():
     await client.renamed_six()
 
 
+@pytest.mark.skip(reason="will reopen the cases after upgrade `@azure-tools/typespec-client-generator-core` to 0.67.0")
 @pytest.mark.asyncio
 async def test_structure_two_operation_group():
     client = TwoOperationGroupClient(endpoint="http://localhost:3000", client=ClientType.TWO_OPERATION_GROUP)

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

@@ -8,6 +8,7 @@
 from client.structure.clientoperationgroup.aio import FirstClient, SecondClient
 
 
+@pytest.mark.skip(reason="will reopen the cases after upgrade `@azure-tools/typespec-client-generator-core` to 0.67.0")
 @pytest.mark.asyncio
 async def test_first_client_operations():
     client = FirstClient(endpoint="http://localhost:3000", client=ClientType.CLIENT_OPERATION_GROUP)
@@ -20,6 +21,7 @@ async def test_first_client_operations():
     await client.four()
 
 
+@pytest.mark.skip(reason="will reopen the cases after upgrade `@azure-tools/typespec-client-generator-core` to 0.67.0")
 @pytest.mark.asyncio
 async def test_second_client_operations():
     client = SecondClient(endpoint="http://localhost:3000", client=ClientType.CLIENT_OPERATION_GROUP)

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

@@ -3,6 +3,7 @@
 # Licensed under the MIT License. See License.txt in the project root for
 # license information.
 # --------------------------------------------------------------------------
+import pytest
 from client.structure.service.models import ClientType
 from client.structure.service import ServiceClient
 from client.structure.multiclient import ClientAClient, ClientBClient
@@ -35,6 +36,7 @@ def test_structure_multiclient():
     client_b.renamed_six()
 
 
+@pytest.mark.skip(reason="will reopen the cases after upgrade `@azure-tools/typespec-client-generator-core` to 0.67.0")
 def test_structure_renamed_operation():
     client = RenamedOperationClient(endpoint="http://localhost:3000", client=ClientType.RENAMED_OPERATION)
     client.renamed_one()
@@ -46,6 +48,7 @@ def test_structure_renamed_operation():
     client.renamed_six()
 
 
+@pytest.mark.skip(reason="will reopen the cases after upgrade `@azure-tools/typespec-client-generator-core` to 0.67.0")
 def test_structure_two_operation_group():
     client = TwoOperationGroupClient(endpoint="http://localhost:3000", client=ClientType.TWO_OPERATION_GROUP)
     client.one()

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

@@ -3,10 +3,12 @@
 # Licensed under the MIT License. See License.txt in the project root for
 # license information.
 # --------------------------------------------------------------------------
+import pytest
 from client.structure.clientoperationgroup.models import ClientType
 from client.structure.clientoperationgroup import FirstClient, SecondClient
 
 
+@pytest.mark.skip(reason="will reopen the cases after upgrade `@azure-tools/typespec-client-generator-core` to 0.67.0")
 def test_first_client_operations():
     client = FirstClient(endpoint="http://localhost:3000", client=ClientType.CLIENT_OPERATION_GROUP)
 
@@ -18,6 +20,7 @@ def test_first_client_operations():
     client.four()
 
 
+@pytest.mark.skip(reason="will reopen the cases after upgrade `@azure-tools/typespec-client-generator-core` to 0.67.0")
 def test_second_client_operations():
     client = SecondClient(endpoint="http://localhost:3000", client=ClientType.CLIENT_OPERATION_GROUP)
 

packages/http-client-python/generator/test/generic_mock_api_tests/asynctests/test_payload_pageable_async.py

@@ -5,6 +5,7 @@
 # --------------------------------------------------------------------------
 import pytest
 from payload.pageable.aio import PageableClient
+from payload.pageable.serverdrivenpagination.alternateinitialverb.models import Filter
 
 
 @pytest.fixture
@@ -125,3 +126,9 @@ async def test_xml_pagination_list_with_continuation(client: PageableClient):
 async def test_xml_pagination_list_with_next_link(client: PageableClient):
     result = [p async for p in client.xml_pagination.list_with_next_link()]
     assert_result(result)
+
+
+@pytest.mark.asyncio
+async def test_alternate_initial_verb_post(client: PageableClient):
+    result = [p async for p in client.server_driven_pagination.alternate_initial_verb.post(Filter(filter="foo eq bar"))]
+    assert_result(result)

packages/http-client-python/generator/test/generic_mock_api_tests/test_payload_pageable.py

@@ -5,6 +5,7 @@
 # --------------------------------------------------------------------------
 import pytest
 from payload.pageable import PageableClient
+from payload.pageable.serverdrivenpagination.alternateinitialverb.models import Filter
 
 
 @pytest.fixture
@@ -91,3 +92,8 @@ def test_xml_pagination_list_with_continuation(client: PageableClient):
 def test_xml_pagination_list_with_next_link(client: PageableClient):
     result = list(client.xml_pagination.list_with_next_link())
     assert_result(result)
+
+
+def test_alternate_initial_verb_post(client: PageableClient):
+    result = list(client.server_driven_pagination.alternate_initial_verb.post(Filter(filter="foo eq bar")))
+    assert_result(result)

packages/http-client-python/package.json

@@ -57,8 +57,8 @@
     "@azure-tools/typespec-autorest": ">=0.66.0 <1.0.0",
     "@azure-tools/typespec-azure-core": ">=0.66.0 <1.0.0",
     "@azure-tools/typespec-azure-resource-manager": ">=0.66.0 <1.0.0",
-    "@azure-tools/typespec-azure-rulesets": ">=0.65.1 <1.0.0",
-    "@azure-tools/typespec-client-generator-core": ">=0.66.1 <1.0.0",
+    "@azure-tools/typespec-azure-rulesets": ">=0.66.0 <1.0.0",
+    "@azure-tools/typespec-client-generator-core": ">=0.66.2 <1.0.0",
     "@typespec/compiler": "^1.10.0",
     "@typespec/http": "^1.10.0",
     "@typespec/openapi": "^1.10.0",
@@ -80,9 +80,9 @@
     "@azure-tools/typespec-autorest": "~0.66.0",
     "@azure-tools/typespec-azure-core": "~0.66.0",
     "@azure-tools/typespec-azure-resource-manager": "~0.66.0",
-    "@azure-tools/typespec-azure-rulesets": "~0.65.1",
-    "@azure-tools/typespec-client-generator-core": "~0.66.1",
-    "@azure-tools/azure-http-specs": "0.1.0-alpha.39-dev.3",
+    "@azure-tools/typespec-azure-rulesets": "~0.66.0",
+    "@azure-tools/typespec-client-generator-core": "~0.66.2",
+    "@azure-tools/azure-http-specs": "0.1.0-alpha.39-dev.4",
     "@typespec/compiler": "^1.10.0",
     "@typespec/http": "^1.10.0",
     "@typespec/openapi": "^1.10.0",
@@ -94,7 +94,7 @@
     "@typespec/sse": "~0.80.0",
     "@typespec/streams": "~0.80.0",
     "@typespec/xml": "~0.80.0",
-    "@typespec/http-specs": "0.1.0-alpha.35-dev.1",
+    "@typespec/http-specs": "0.1.0-alpha.35-dev.4",
     "@types/js-yaml": "~4.0.5",
     "@types/node": "~25.0.2",
     "@types/semver": "7.5.8",