feat(bigquery): add dataplex_get_data_profile_scan sample to get a Dataplex data profile scan and latest results

Problem:
The Dataplex documentation (https://cloud.google.com/dataplex/docs/use-data-profiling#most-recent-scan)
needs a standalone, tested Python code sample demonstrating how to
get a Dataplex data profile scan and latest results (region tag `dataplex_get_data_profile_scan`).

Solution:
- Add `get_data_profile_scan(project_id: str, location: str, data_scan_id: str) -> None` in `bigquery/data_profile_scan/dataplex_get_data_profile_scan.py`
  (Retrieve a Dataplex DataScan resource with DataScanView.FULL to inspect its configuration and most recent profile scan results.)
- Add unit tests (`bigquery/data_profile_scan/dataplex_get_data_profile_scan_test.py`) covering both the success
  path and API error handling (`GoogleAPICallError`)

Author: iennae

bigquery/data_profile_scan/dataplex_get_data_profile_scan.py

@@ -0,0 +1,68 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# [START dataplex_get_data_profile_scan]
+import sys
+
+from google.api_core import exceptions
+from google.cloud import dataplex_v1
+
+
+def get_data_profile_scan(
+    project_id: str,
+    location: str,
+    data_scan_id: str,
+) -> None:
+    """Retrieves a Dataplex data profile scan and its latest profile results.
+
+    Args:
+        project_id: Google Cloud project ID (for example, 'example-project').
+        location: Google Cloud region where the data scan resides
+            (for example, 'us-central1').
+        data_scan_id: Dataplex data profile scan ID
+            (for example, 'example-profile-scan').
+    """
+    client = dataplex_v1.DataScanServiceClient()
+    scan_name = f"projects/{project_id}/locations/{location}/dataScans/{data_scan_id}"
+    # Request DataScanView.FULL so the response includes data_profile_result metrics.
+    request = dataplex_v1.GetDataScanRequest(
+        name=scan_name,
+        view=dataplex_v1.GetDataScanRequest.DataScanView.FULL,
+    )
+
+    try:
+        scan = client.get_data_scan(request=request)
+    except exceptions.NotFound as err:
+        print(
+            f"error: data profile scan '{data_scan_id}' not found in location "
+            f"'{location}' for project '{project_id}': {err.message}",
+            file=sys.stderr,
+        )
+        return
+    except exceptions.GoogleAPICallError as err:
+        print(
+            f"error: failed to retrieve data profile scan '{data_scan_id}' in location "
+            f"'{location}' for project '{project_id}': {err.message}",
+            file=sys.stderr,
+        )
+        return
+
+    row_count = scan.data_profile_result.row_count
+    print(f"Resource ID: {scan.name}")
+    print(f"Data Resource: {scan.data.resource}")
+    print(f"Row Count: {row_count}")
+    print(f"Scan State: {scan.state.name}")
+
+
+# [END dataplex_get_data_profile_scan]

bigquery/data_profile_scan/dataplex_get_data_profile_scan_test.py

@@ -0,0 +1,76 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from unittest import mock
+
+import dataplex_get_data_profile_scan
+from google.api_core import exceptions
+import pytest
+
+
+def test_get_data_profile_scan_success(
+    monkeypatch: pytest.MonkeyPatch,
+    capsys: pytest.CaptureFixture[str],
+) -> None:
+    mock_client = mock.MagicMock()
+    mock_scan = mock.MagicMock()
+    mock_scan.name = (
+        "projects/example-project/locations/us-central1/dataScans/example-profile-scan"
+    )
+    mock_scan.data.resource = "//bigquery.googleapis.com/projects/bigquery-public-data/datasets/samples/tables/shakespeare"
+    mock_scan.data_profile_result.row_count = 164656
+    mock_scan.state.name = "ACTIVE"
+    mock_client.get_data_scan.return_value = mock_scan
+    monkeypatch.setattr(
+        dataplex_get_data_profile_scan.dataplex_v1,
+        "DataScanServiceClient",
+        lambda: mock_client,
+    )
+
+    dataplex_get_data_profile_scan.get_data_profile_scan(
+        project_id="example-project",
+        location="us-central1",
+        data_scan_id="example-profile-scan",
+    )
+
+    captured = capsys.readouterr()
+    assert (
+        "Resource ID: projects/example-project/locations/us-central1/dataScans/example-profile-scan"
+        in captured.out
+    )
+    assert "Row Count: 164656" in captured.out
+    assert "Scan State: ACTIVE" in captured.out
+
+
+def test_get_data_profile_scan_error(
+    monkeypatch: pytest.MonkeyPatch,
+    capsys: pytest.CaptureFixture[str],
+) -> None:
+    mock_client = mock.MagicMock()
+    mock_client.get_data_scan.side_effect = exceptions.NotFound("scan not found")
+    monkeypatch.setattr(
+        dataplex_get_data_profile_scan.dataplex_v1,
+        "DataScanServiceClient",
+        lambda: mock_client,
+    )
+
+    dataplex_get_data_profile_scan.get_data_profile_scan(
+        project_id="example-project",
+        location="us-central1",
+        data_scan_id="example-profile-scan",
+    )
+
+    captured = capsys.readouterr()
+    assert "error:" in captured.err
+    assert "example-profile-scan" in captured.err

bigquery/data_profile_scan/noxfile_config.py

@@ -0,0 +1,23 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+TEST_CONFIG_OVERRIDE = {
+    # You can opt out from the test for specific Python versions.
+    "ignored_versions": ["2.7", "3.7", "3.8", "3.9", "3.10", "3.11"],
+    # Enforce type hints on new samples.
+    "enforce_type_hints": True,
+    "gcloud_project_env": "GOOGLE_CLOUD_PROJECT",
+    "pip_version_override": None,
+    "envs": {},
+}

bigquery/data_profile_scan/requirements-test.txt

@@ -0,0 +1 @@
+pytest==9.0.3; python_version >= "3.10"

bigquery/data_profile_scan/requirements.txt

@@ -0,0 +1 @@
+google-cloud-dataplex==2.20.0