docs: standard test version, link standard test guide

docs/docs/contributing/how_to/integrations/index.mdx

@@ -67,7 +67,7 @@ As a prerequisite to adding your integration to our documentation, you must:
 
 1. Confirm that your integration is in the list of components we are currently accepting.
 2. Ensure that your integration is in a separate package that can be installed with `pip install <your-package>`.
-3. Implement the standard tests for your integration and successfully run them.
+3. Implement the standard tests for your integration and successfully run them (see [how-to guide](./standard_tests.ipynb))
 3. Write documentation for your integration in the `docs/docs/integrations` directory of the LangChain monorepo.
 4. Add a provider page for your integration in the `docs/docs/integrations/providers` directory of the LangChain monorepo.
 

docs/docs/contributing/how_to/integrations/standard_tests.ipynb

@@ -15,7 +15,7 @@
     "First, let's install 2 dependencies:\n",
     "\n",
     "- `langchain-core` will define the interfaces we want to import to define our custom tool.\n",
-    "- `langchain-tests==0.3.0` will provide the standard tests we want to use.\n",
+    "- `langchain-tests==0.3.1` will provide the standard tests we want to use.\n",
     "\n",
     ":::note\n",
     "\n",
@@ -26,7 +26,7 @@
     "or in a new release of `langchain-tests`.\n",
     "\n",
     "Because added tests in new versions of `langchain-tests` will always break your CI/CD pipelines, we recommend pinning the \n",
-    "version of `langchain-tests==0.3.0` to avoid unexpected changes.\n",
+    "version of `langchain-tests==0.3.1` to avoid unexpected changes.\n",
     "\n",
     ":::"
    ]
@@ -37,7 +37,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "%pip install -U langchain-core langchain-tests==0.3.0 pytest pytest-socket"
+    "%pip install -U langchain-core langchain-tests==0.3.1 pytest pytest-socket"
    ]
   },
   {

libs/standard-tests/tests/unit_tests/test_cli.py

@@ -0,0 +1,11 @@
+try:
+    import tomllib
+except ImportError:
+    # if prior to 3.11, use alternative toml library
+    import toml as tomllib
+
+
+def test_cli_template_version() -> None:
+    """
+    Confirm that the version in the CLI pyproject file is the same as the version in the package.
+    """