chore: Add path filters for integrations

.agents/skills/test-python-binding/SKILL.md

@@ -38,6 +38,13 @@ Use this skill when the change is primarily in `python/nemo_flow`,
 - The name of the mocked class should be prefixed with `mock`, not `fake`.
 - Prefer pytest fixtures over helper methods.
 - Do not repeat fixtures, if a fixture is needed in multiple test files, place it in a `conftest.py` file.
+- When creating a fixture follow this pattern:
+  ```python
+  @pytest.fixture(name="<fixture_name>"[, scope="<scope>"])
+  def <fixture_name>_fixture() -> <return_type>:
+      ...
+  ```
+  Only specify the scope argument when the value is something other than "function".
 - Prefer `pytest.mark.parametrize` over creating individual tests for
   different input types.
 

python/tests/conftest.py

@@ -7,6 +7,7 @@
 
 import typing
 from collections.abc import Iterator
+import types
 from uuid import uuid4
 
 import pytest

python/tests/integrations/conftest.py

@@ -0,0 +1,42 @@
+# SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+# SPDX-License-Identifier: Apache-2.0
+
+import types
+
+import pytest
+
+
+@pytest.fixture(name="integration_langchain", scope='session')
+def integration_langchain_fixture() -> types.ModuleType:
+    """
+    Use for integration tests that require LangChain to be installed.
+    """
+    try:
+        import langchain
+        return langchain
+    except Exception:
+        pytest.skip(reason="langchain must be installed to run LangChain based tests")
+
+
+@pytest.fixture(name="integration_langgraph", scope='session')
+def integration_langgraph_fixture(integration_langchain: types.ModuleType) -> types.ModuleType:
+    """
+    Use for integration tests that require LangGraph to be installed.
+    """
+    try:
+        import langgraph
+        return langgraph
+    except Exception:
+        pytest.skip(reason="langgraph must be installed to run LangGraph based tests")
+
+
+@pytest.fixture(name="integration_deepagents", scope='session')
+def integration_deepagents_fixture(integration_langgraph: types.ModuleType) -> types.ModuleType:
+    """
+    Use for integration tests that require Deep Agents to be installed.
+    """
+    try:
+        import deepagents
+        return deepagents
+    except Exception:
+        pytest.skip(reason="deepagents must be installed to run Deep Agents based tests")

python/tests/integrations/deepagents/conftest.py

@@ -0,0 +1,13 @@
+# SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+# SPDX-License-Identifier: Apache-2.0
+
+import types
+
+import pytest
+
+@pytest.fixture(name="integration_deepagents", scope='session', autouse=True)
+def integration_deepagents_fixture(integration_deepagents: types.ModuleType) -> types.ModuleType:
+    """
+    Override the integration_deepagents fixture to make it autouse
+    """
+    yield integration_deepagents

python/tests/integrations/langchain_tests/conftest.py

@@ -0,0 +1,13 @@
+# SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+# SPDX-License-Identifier: Apache-2.0
+
+import types
+
+import pytest
+
+@pytest.fixture(name="integration_langchain", scope='session', autouse=True)
+def integration_langchain_fixture(integration_langchain: types.ModuleType) -> types.ModuleType:
+    """
+    Override the integration_langchain fixture to make it autouse
+    """
+    yield integration_langchain