Implementing basic HappyBase system test.

Also in the process modifying Bigtable Client.copy() since
the crypto signer objects used in ServiceAccountCredentials
can't be copied (cffi won't allow it).

gcloud/bigtable/client.py

@@ -27,8 +27,6 @@
 """
 
 
-import copy
-
 from grpc.beta import implementations
 
 from gcloud.bigtable._generated import bigtable_cluster_data_pb2 as data_pb2
@@ -168,7 +166,8 @@ def copy(self):
         :rtype: :class:`.Client`
         :returns: A copy of the current client.
         """
-        copied_creds = copy.deepcopy(self._credentials)
+        credentials = self._credentials
+        copied_creds = credentials.create_scoped(credentials.scopes)
         return self.__class__(
             self.project,
             copied_creds,

gcloud/bigtable/test_client.py

@@ -129,7 +129,6 @@ def _copy_test_helper(self, read_only=False, admin=False):
         new_client = client.copy()
         self.assertEqual(new_client._admin, client._admin)
         self.assertEqual(new_client._credentials, client._credentials)
-        self.assertFalse(new_client._credentials is client._credentials)
         self.assertEqual(new_client.project, client.project)
         self.assertEqual(new_client.user_agent, client.user_agent)
         self.assertEqual(new_client.timeout_seconds, client.timeout_seconds)

system_tests/bigtable_happybase.py

@@ -0,0 +1,113 @@
+# Copyright 2016 Google Inc. All rights reserved.
+#
+# 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
+#
+#     http://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 time
+
+import unittest2
+
+from gcloud import _helpers
+from gcloud.bigtable import client as client_mod
+from gcloud.bigtable.happybase.connection import Connection
+from gcloud.environment_vars import TESTS_PROJECT
+
+
+_helpers.PROJECT = TESTS_PROJECT
+ZONE = 'us-central1-c'
+NOW_MILLIS = int(1000 * time.time())
+CLUSTER_ID = 'gcloud-python-%d' % (NOW_MILLIS,)
+TABLE_NAME = 'table-name'
+ALT_TABLE_NAME = 'other-table'
+TTL_FOR_TEST = 3
+COL_FAM1 = 'cf1'
+COL_FAM2 = 'cf2'
+COL_FAM3 = 'cf3'
+FAMILIES = {
+    COL_FAM1: {'max_versions': 10},
+    COL_FAM2: {'max_versions': 1, 'time_to_live': TTL_FOR_TEST},
+    COL_FAM3: {},  # use defaults
+}
+
+
+class Config(object):
+    """Run-time configuration to be modified at set-up.
+
+    This is a mutable stand-in to allow test set-up to modify
+    global state.
+    """
+    CONNECTION = None
+    TABLE = None
+
+
+def _operation_wait(operation, max_attempts=5):
+    """Wait until an operation has completed.
+
+    :type operation: :class:`gcloud.bigtable.cluster.Operation`
+    :param operation: Operation that has not finished.
+
+    :type max_attempts: int
+    :param max_attempts: (Optional) The maximum number of times to check if
+                         the operation has finished. Defaults to 5.
+    """
+    total_sleep = 0
+    while not operation.finished():
+        if total_sleep > max_attempts:
+            return False
+        time.sleep(1)
+        total_sleep += 1
+
+    return True
+
+
+def set_connection():
+    client = client_mod.Client(admin=True)
+    cluster = client.cluster(ZONE, CLUSTER_ID)
+    client.start()
+    operation = cluster.create()
+    if not _operation_wait(operation):
+        raise RuntimeError('Cluster creation exceed 5 seconds.')
+    Config.CONNECTION = Connection(cluster=cluster)
+
+
+def setUpModule():
+    set_connection()
+    Config.CONNECTION.create_table(TABLE_NAME, FAMILIES)
+    Config.TABLE = Config.CONNECTION.table(TABLE_NAME)
+
+
+def tearDownModule():
+    Config.CONNECTION.delete_table(TABLE_NAME)
+    Config.CONNECTION._cluster.delete()
+    Config.CONNECTION.close()
+
+
+class TestConnection(unittest2.TestCase):
+
+    def test_create_and_delete_table(self):
+        connection = Config.CONNECTION
+
+        self.assertFalse(ALT_TABLE_NAME in connection.tables())
+        connection.create_table(ALT_TABLE_NAME, {COL_FAM1: {}})
+        self.assertTrue(ALT_TABLE_NAME in connection.tables())
+        connection.delete_table(ALT_TABLE_NAME)
+        self.assertFalse(ALT_TABLE_NAME in connection.tables())
+
+    def test_create_table_failure(self):
+        connection = Config.CONNECTION
+
+        self.assertFalse(ALT_TABLE_NAME in connection.tables())
+        empty_families = {}
+        with self.assertRaises(ValueError):
+            connection.create_table(ALT_TABLE_NAME, empty_families)
+        self.assertFalse(ALT_TABLE_NAME in connection.tables())

system_tests/run_system_test.py

@@ -20,6 +20,7 @@
 # repository root is the current directory.
 import bigquery
 import bigtable
+import bigtable_happybase
 import datastore
 import pubsub
 import storage
@@ -32,13 +33,15 @@
     'pubsub': ['project', 'credentials'],
     'bigquery': ['project', 'credentials'],
     'bigtable': ['project', 'credentials'],
+    'bigtable-happybase': ['project', 'credentials'],
 }
 TEST_MODULES = {
     'datastore': datastore,
     'storage': storage,
     'pubsub': pubsub,
     'bigquery': bigquery,
     'bigtable': bigtable,
+    'bigtable-happybase': bigtable_happybase,
 }