update samples noxfile

Author: daniel-sanche

.librarian/generator-input/client-post-processing/bigtable-integration.yaml

@@ -756,15 +756,17 @@ replacements:
               if "beam" not in p.parts
           ]
           req_args = [arg for req_file in req_files for arg in ("-r", req_file)]
-          session.install("-e", ".")
           session.install(
               "google-cloud-testutils",
               "mock",
               "pytest",
               "pytest-asyncio",
               *req_args,
           )
-          session.install("-e", ".", "--no-deps")
+          # Install the library from this checkout last so the samples exercise the
+          # code at HEAD rather than a released version. The samples' requirements.txt
+          # files intentionally leave google-cloud-bigtable unpinned for this reason.
+          session.install("-e", ".")
 
           has_target = any(not arg.startswith("-") for arg in session.posargs)
           target_paths = [] if has_target else [os.path.join("samples")]

packages/google-cloud-bigtable/noxfile.py

@@ -396,15 +396,17 @@ def samples(session):
         if "beam" not in p.parts
     ]
     req_args = [arg for req_file in req_files for arg in ("-r", req_file)]
-    session.install("-e", ".")
     session.install(
         "google-cloud-testutils",
         "mock",
         "pytest",
         "pytest-asyncio",
         *req_args,
     )
-    session.install("-e", ".", "--no-deps")
+    # Install the library from this checkout last so the samples exercise the
+    # code at HEAD rather than a released version. The samples' requirements.txt
+    # files intentionally leave google-cloud-bigtable unpinned for this reason.
+    session.install("-e", ".")
 
     has_target = any(not arg.startswith("-") for arg in session.posargs)
     target_paths = [] if has_target else [os.path.join("samples")]

packages/google-cloud-bigtable/samples/README.md

@@ -24,9 +24,14 @@ This directory contains code samples for Cloud Bigtable, which may be used as a
    python main.py $GOOGLE_CLOUD_PROJECT $BIGTABLE_INSTANCE
    ```
 
-3. To run sample tests using Nox:
+3. To run the sample tests using Nox, from the `packages/google-cloud-bigtable` directory:
    ```bash
-   nox -s py-3.14
+   nox -s samples
+   ```
+   This installs the library from the repository checkout, so the samples are
+   tested against the code at HEAD. To run a subset, pass a path:
+   ```bash
+   nox -s samples -- samples/legacy_client/quickstart
    ```
 
 ## Additional Information