Adding tests for the twilio sample. Fixes #183 (#354)

Author: Jon Wayne Parrott

managed_vms/twilio/main.py

@@ -48,7 +48,7 @@ def send_sms():
     to = request.args.get('to')
     if not to:
         return ('Please provide the number to message in the "to" query string'
-                ' parameter.')
+                ' parameter.'), 400
 
     client = TwilioRestClient(TWILIO_ACCOUNT_SID, TWILIO_AUTH_TOKEN)
     rv = client.messages.create(

managed_vms/twilio/main_test.py

@@ -0,0 +1,67 @@
+# 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 json
+
+from googleapiclient.http import HttpMockSequence
+import httplib2
+import pytest
+
+
+class HttpMockSequenceWithCredentials(HttpMockSequence):
+    def add_credentials(self, *args):
+        pass
+
+
+@pytest.fixture
+def app(monkeypatch):
+    monkeypatch.setenv('TWILIO_ACCOUNT_SID', 'sid123')
+    monkeypatch.setenv('TWILIO_AUTH_TOKEN', 'auth123')
+    monkeypatch.setenv('TWILIO_NUMBER', '0123456789')
+
+    import main
+
+    main.app.testing = True
+    return main.app.test_client()
+
+
+def test_receive_call(app):
+    r = app.post('/call/receive')
+    assert 'Hello from Twilio!' in r.data.decode('utf-8')
+
+
+def test_send_sms(app, monkeypatch):
+    httpmock = HttpMockSequenceWithCredentials([
+        ({'status': '200'}, json.dumps({
+            'sid': 'sid123'
+        }))
+    ])
+
+    def mock_http_ctor(*args, **kwargs):
+        return httpmock
+
+    monkeypatch.setattr(httplib2, 'Http', mock_http_ctor)
+
+    r = app.get('/sms/send')
+    assert r.status_code == 400
+
+    r = app.get('/sms/send?to=5558675309')
+    assert r.status_code == 200
+
+
+def test_receive_sms(app):
+    r = app.post('/sms/receive', data={
+        'From': '5558675309', 'Body': 'Jenny, I got your number.'})
+    assert r.status_code == 200
+    assert 'Jenny, I got your number' in r.data.decode('utf-8')