Move create table sample to samples directory

* Add `samples/create_table.py` sample code.

* Remove `test_create_table` from snippets collection.

bigquery/docs/samples

@@ -0,0 +1 @@
+../samples/

bigquery/docs/snippets.py

@@ -522,31 +522,6 @@ def test_list_tables(client, to_delete):
     # [END bigquery_list_tables]
 
 
-def test_create_table(client, to_delete):
-    """Create a table."""
-    dataset_id = "create_table_dataset_{}".format(_millis())
-    dataset_ref = client.dataset(dataset_id)
-    dataset = bigquery.Dataset(dataset_ref)
-    client.create_dataset(dataset)
-    to_delete.append(dataset)
-
-    # [START bigquery_create_table]
-    # from google.cloud import bigquery
-    # client = bigquery.Client()
-    # dataset_ref = client.dataset('my_dataset')
-
-    schema = [
-        bigquery.SchemaField("full_name", "STRING", mode="REQUIRED"),
-        bigquery.SchemaField("age", "INTEGER", mode="REQUIRED"),
-    ]
-    table_ref = dataset_ref.table("my_table")
-    table = bigquery.Table(table_ref, schema=schema)
-    table = client.create_table(table)  # API request
-
-    assert table.table_id == "my_table"
-    # [END bigquery_create_table]
-
-
 def test_create_table_nested_repeated_schema(client, to_delete):
     dataset_id = "create_table_nested_repeated_{}".format(_millis())
     dataset_ref = client.dataset(dataset_id)

bigquery/docs/usage/tables.rst

@@ -43,7 +43,7 @@ Creating a Table
 Create an empty table with the
 :func:`~google.cloud.bigquery.client.Client.create_table` method:
 
-.. literalinclude:: ../snippets.py
+.. literalinclude:: ../samples/create_table.py
    :language: python
    :dedent: 4
    :start-after: [START bigquery_create_table]

bigquery/samples/create_table.py

@@ -0,0 +1,37 @@
+# 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.
+
+
+def create_table(client, table_id):
+
+    # [START bigquery_create_table]
+    from google.cloud import bigquery
+
+    schema = [
+        bigquery.SchemaField("full_name", "STRING", mode="REQUIRED"),
+        bigquery.SchemaField("age", "INTEGER", mode="REQUIRED"),
+    ]
+
+    # TODO(developer): Construct a BigQuery client object.
+    # client = bigquery.Client()
+
+    # TODO(developer): Set table_id to the ID of the table to create
+    # table_id = "your-project.your_dataset.your_table_name"
+
+    table = bigquery.Table(table_id, schema=schema)
+    table = client.create_table(table)  # API request
+    print(
+        "Created table {}.{}.{}".format(table.project, table.dataset_id, table.table_id)
+    )
+    # [END bigquery_create_table]

bigquery/samples/tests/conftest.py

@@ -25,6 +25,15 @@ def client():
     return bigquery.Client()
 
 
+@pytest.fixture
+def random_table_id(client, dataset_id):
+    now = datetime.datetime.now()
+    random_table_id = "example_table_{}_{}".format(
+        now.strftime("%Y%m%d%H%M%S"), uuid.uuid4().hex[:8]
+    )
+    return "{}.{}".format(dataset_id, random_table_id)
+
+
 @pytest.fixture
 def dataset_id(client):
     now = datetime.datetime.now()

bigquery/samples/tests/test_table_samples.py

@@ -0,0 +1,22 @@
+# 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.
+
+from .. import create_table
+
+
+def test_create_table(capsys, client, random_table_id):
+
+    create_table.create_table(client, random_table_id)
+    out, err = capsys.readouterr()
+    assert "Created table {}".format(random_table_id) in out