docs(samples): add samples from docs & reorganize all samples for testing

samples/quickstart/conftest.py

@@ -0,0 +1,78 @@
+# Copyright 2019 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.
+
+
+import datetime
+import uuid
+
+import google.auth
+from google.cloud import bigquery
+from google.cloud import datacatalog_v1
+
+import pytest
+
+
+def temp_suffix():
+    now = datetime.datetime.now()
+    return "{}_{}".format(
+        now.strftime("%Y%m%d%H%M%S"), uuid.uuid4().hex[:8]
+    )
+
+
+@pytest.fixture(scope="session")
+def client(credentials):
+    return datacatalog_v1.DataCatalogClient(credentials=credentials)
+
+
+@pytest.fixture(scope="session")
+def bigquery_client(credentials, project_id):
+    return bigquery.Client(project=project_id, credentials=credentials)
+
+
+@pytest.fixture(scope="session")
+def default_credentials():
+    return google.auth.default(scopes=["https://www.googleapis.com/auth/cloud-platform"])
+
+
+@pytest.fixture(scope="session")
+def credentials(default_credentials):
+    return default_credentials[0]
+
+
+@pytest.fixture(scope="session")
+def project_id(default_credentials):
+    return default_credentials[1]
+
+
+@pytest.fixture
+def dataset_id(bigquery_client):
+    dataset_id = f"python_data_catalog_sample_{temp_suffix()}"
+    dataset = bigquery_client.create_dataset(dataset_id)
+    yield dataset.dataset_id
+    bigquery_client.delete_dataset(dataset, delete_contents=True, not_found_ok=True)
+
+
+@pytest.fixture
+def table_id(bigquery_client, project_id, dataset_id):
+    table_id = f"python_data_catalog_sample_{temp_suffix()}"
+    table = bigquery.Table("{}.{}.{}".format(project_id, dataset_id, table_id))
+    table = bigquery_client.create_table(table)
+    yield table.table_id
+    bigquery_client.delete_table(table, not_found_ok=True)
+
+
+@pytest.fixture
+def random_tag_template_id():
+    random_tag_template_id = f"python_sample_{temp_suffix()}"
+    yield random_tag_template_id