update test_sams_proxy.py test_token_passthrough to use a session

test/test_sams_proxy.py

@@ -206,6 +206,7 @@ class TestSAMSHubWithThreadedAPI(unittest.TestCase):
     for param_type in ('header', 'url', 'body'):
       proxyApp = Flask('test')
       proxyApp.config['TESTING'] = True
+      proxyApp.secret_key = 'A0Zr98j/3yX R~XHH!jmN]LWX/,?RT'
       proxy = SAMSProxy(
         proxySpec = {
           'in': '/proxy', 'out': 'http://localhost:4711',
@@ -223,6 +224,8 @@ class TestSAMSHubWithThreadedAPI(unittest.TestCase):
           view_func = proxy.proxy, methods=['GET', 'POST', 'PUT', 'UPDATE',
             'PATCH', 'DELETE', 'OPTIONS'])
         with proxyApp.test_client(self) as client:
+          with client.session_transaction() as sess:
+            sess['user'] = 'foo'
           res = client.get(path='/proxy/passthrough',
             query_string={'u':'foo'}, data={'g':'bar'},
             headers={'lang': 'klingon'})