Add Python mock-api tests for postPagingLroWithBody ARM LRO paging scenario (#11344)

fix #11400 and
#11405

Adds Python SDK coverage for the `postPagingLroWithBody` ARM scenario
updated in
[Azure/typespec-azure#4991](Azure/typespec-azure#4991),
which declares the LRO final result (`ArmLroLocationHeader<FinalResult =
ProductListResult>`) for a paged LRO POST that takes a request body.

### Changes

- **Spec dependency**: bumped `@azure-tools/azure-http-specs` to
`0.1.0-alpha.44-dev.4`, the first published version containing the fix.
- **Sync test** (`mock_api/azure/test_azure_arm_operationtemplates.py`):
exercises `begin_post_paging_lro_with_body` with a `VnetProfile` body
and asserts the two-page result.
- **Async test**
(`mock_api/azure/asynctests/test_azure_arm_operationtemplates_async.py`):
async counterpart.
- **Changelog**: `internal` entry for `@typespec/http-client-python`.

```python
def test_lro_paging_begin_post_paging_lro_with_body(client):
    result = client.lro_paging.begin_post_paging_lro_with_body(
        resource_group_name=RESOURCE_GROUP_NAME,
        product_name="default",
        body=models.VnetProfile(vnet_id="vnet1"),
    ).result()
    items = list(result)
    assert [i.name for i in items] == ["product1", "product2"]
```

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: msyyc <70930885+msyyc@users.noreply.github.com>
Co-authored-by: Yuchao Yan <yuchaoyan@microsoft.com>

Author: Copilot

.chronus/changes/add-python-post-paging-lro-with-body-test-2026-7-22-2-4-0.md

@@ -0,0 +1,7 @@
+---
+changeKind: internal
+packages:
+  - "@typespec/http-client-python"
+---
+
+Add mock API tests for the new ARM operation-templates scenarios (`postPagingLroWithBody`, `getLro`, `postActionPaging`, `markAsPageable`, `Legacy.routedGet`, and `Legacy.createOrReplaceOptionalBody`).

packages/http-client-python/tests/mock_api/azure/asynctests/test_azure_arm_operationtemplates_async.py

@@ -204,3 +204,96 @@ async def test_lro_paging_begin_post_paging_lro(client):
     assert items[1].name == "product2"
     assert items[1].properties.product_id == "product2"
     assert items[1].properties.provisioning_state == "Succeeded"
+
+
+@pytest.mark.asyncio
+async def test_lro_paging_begin_post_paging_lro_with_body(client):
+    poller = await client.lro_paging.begin_post_paging_lro_with_body(
+        resource_group_name=RESOURCE_GROUP_NAME,
+        product_name="default",
+        body=models.VnetProfile(vnet_id="vnet1"),
+    )
+    result = await poller.result()
+    items = [item async for item in result]
+    assert len(items) == 2
+    assert items[0].name == "product1"
+    assert items[0].properties.product_id == "product1"
+    assert items[0].properties.provisioning_state == "Succeeded"
+    assert items[1].name == "product2"
+    assert items[1].properties.product_id == "product2"
+    assert items[1].properties.provisioning_state == "Succeeded"
+
+
+@pytest.mark.asyncio
+async def test_lro_begin_get_lro(client):
+    poller = await client.lro.begin_get_lro(
+        scope=f"subscriptions/{SUBSCRIPTION_ID}/resourceGroups/{RESOURCE_GROUP_NAME}",
+        operation_id="report1",
+    )
+    result = await poller.result()
+    assert result.name == "report1"
+    assert result.properties.download_url == "https://storage.blob.core.windows.net/reports/report1.csv"
+    assert result.properties.provisioning_state == "Succeeded"
+
+
+@pytest.mark.asyncio
+async def test_paging_post_action_paging(client):
+    result = client.paging.post_action_paging(
+        resource_group_name=RESOURCE_GROUP_NAME,
+        monitor_name="monitor1",
+        body=models.LogStatusRequest(filter="status eq 'active'"),
+    )
+    items = [item async for item in result]
+    assert items[0].id.endswith("/Microsoft.Compute/virtualMachines/vm1")
+    assert items[0].sending_metrics == True
+
+
+@pytest.mark.asyncio
+async def test_paging_mark_as_pageable(client):
+    result = client.paging.mark_as_pageable(
+        resource_group_name=RESOURCE_GROUP_NAME,
+        monitor_name="monitor1",
+    )
+    items = [item async for item in result]
+    assert len(items) == 2
+    assert items[0].name == "collection1"
+    assert items[0].properties.display_name == "Test Collection"
+    assert items[1].name == "collection2"
+    assert items[1].properties.display_name == "Another Collection"
+
+
+@pytest.mark.asyncio
+async def test_legacy_routed_get(client):
+    result = await client.legacy.routed_get(
+        resource_group_name=RESOURCE_GROUP_NAME,
+        name="default",
+        diagnostic_name="memory",
+    )
+    assert result.name == "memory"
+    assert result.status == "healthy"
+
+
+@pytest.mark.asyncio
+async def test_legacy_create_or_replace_optional_body_with_body(client):
+    result = await client.legacy.create_or_replace_optional_body(
+        resource_group_name=RESOURCE_GROUP_NAME,
+        configuration_name="default",
+        resource=models.Configuration(
+            location="eastus",
+            properties=models.ConfigurationProperties(config_value="custom-value"),
+        ),
+    )
+    assert result.name == "default"
+    assert result.properties.config_value == "custom-value"
+    assert result.properties.provisioning_state == "Succeeded"
+
+
+@pytest.mark.asyncio
+async def test_legacy_create_or_replace_optional_body_without_body(client):
+    result = await client.legacy.create_or_replace_optional_body(
+        resource_group_name=RESOURCE_GROUP_NAME,
+        configuration_name="default",
+    )
+    assert result.name == "default"
+    assert result.properties.config_value == "default-value"
+    assert result.properties.provisioning_state == "Succeeded"

packages/http-client-python/tests/mock_api/azure/test_azure_arm_operationtemplates.py

@@ -178,3 +178,87 @@ def test_lro_paging_begin_post_paging_lro(client):
     assert items[1].name == "product2"
     assert items[1].properties.product_id == "product2"
     assert items[1].properties.provisioning_state == "Succeeded"
+
+
+def test_lro_paging_begin_post_paging_lro_with_body(client):
+    result = client.lro_paging.begin_post_paging_lro_with_body(
+        resource_group_name=RESOURCE_GROUP_NAME,
+        product_name="default",
+        body=models.VnetProfile(vnet_id="vnet1"),
+    ).result()
+    items = list(result)
+    assert len(items) == 2
+    assert items[0].name == "product1"
+    assert items[0].properties.product_id == "product1"
+    assert items[0].properties.provisioning_state == "Succeeded"
+    assert items[1].name == "product2"
+    assert items[1].properties.product_id == "product2"
+    assert items[1].properties.provisioning_state == "Succeeded"
+
+
+def test_lro_begin_get_lro(client):
+    result = client.lro.begin_get_lro(
+        scope=f"subscriptions/{SUBSCRIPTION_ID}/resourceGroups/{RESOURCE_GROUP_NAME}",
+        operation_id="report1",
+    ).result()
+    assert result.name == "report1"
+    assert result.properties.download_url == "https://storage.blob.core.windows.net/reports/report1.csv"
+    assert result.properties.provisioning_state == "Succeeded"
+
+
+def test_paging_post_action_paging(client):
+    result = client.paging.post_action_paging(
+        resource_group_name=RESOURCE_GROUP_NAME,
+        monitor_name="monitor1",
+        body=models.LogStatusRequest(filter="status eq 'active'"),
+    )
+    items = list(result)
+    assert items[0].id.endswith("/Microsoft.Compute/virtualMachines/vm1")
+    assert items[0].sending_metrics == True
+
+
+def test_paging_mark_as_pageable(client):
+    result = client.paging.mark_as_pageable(
+        resource_group_name=RESOURCE_GROUP_NAME,
+        monitor_name="monitor1",
+    )
+    items = list(result)
+    assert len(items) == 2
+    assert items[0].name == "collection1"
+    assert items[0].properties.display_name == "Test Collection"
+    assert items[1].name == "collection2"
+    assert items[1].properties.display_name == "Another Collection"
+
+
+def test_legacy_routed_get(client):
+    result = client.legacy.routed_get(
+        resource_group_name=RESOURCE_GROUP_NAME,
+        name="default",
+        diagnostic_name="memory",
+    )
+    assert result.name == "memory"
+    assert result.status == "healthy"
+
+
+def test_legacy_create_or_replace_optional_body_with_body(client):
+    result = client.legacy.create_or_replace_optional_body(
+        resource_group_name=RESOURCE_GROUP_NAME,
+        configuration_name="default",
+        resource=models.Configuration(
+            location="eastus",
+            properties=models.ConfigurationProperties(config_value="custom-value"),
+        ),
+    )
+    assert result.name == "default"
+    assert result.properties.config_value == "custom-value"
+    assert result.properties.provisioning_state == "Succeeded"
+
+
+def test_legacy_create_or_replace_optional_body_without_body(client):
+    result = client.legacy.create_or_replace_optional_body(
+        resource_group_name=RESOURCE_GROUP_NAME,
+        configuration_name="default",
+    )
+    assert result.name == "default"
+    assert result.properties.config_value == "default-value"
+    assert result.properties.provisioning_state == "Succeeded"