def test_update_add():
model = MongoModel()
model.update({'a':1},{'c':3})
data = model.query({'a':1})
print data
assert 'c' in data
assert data['c'] == 3
def test_update():
model = MongoModel()
model.update({'a':1},{'b':3})
data = model.query({'a':1})
assert data['b'] == 3
