really use transactions

conftest.py

@@ -18,10 +18,8 @@ def engine(request):
     uri = 'postgresql://localhost:{}/postgres'.format(port)
     e = create_engine(uri)
     meta = MetaData()
-    with e.connect() as cn:
-        reset(cn)
-    with e.connect() as cn:
-        init(cn, meta)
+    reset(e)
+    init(e, meta)
     yield e
 
 

test/test_supervision.py

@@ -51,7 +51,7 @@ def test_long_name(engine, tsh):
 
     name = 'gas.lng.country.trinidad_and_tobago.net_imports.daily'
 
-    with engine.connect() as cn:
+    with engine.begin() as cn:
         tsh.insert(cn, serie, name, 'celeste')