Feature execution tests

[0.20.1] - 2022-02-17

Added

• Add test for execution of command add().
• Add test for execution of command take().
• Add test for execution of command min().
• Add test for execution of command max().
• Add test for execution of command order_by_descending().
• Add test for execution of command order_by().
• Add test for execution of command and().
• Add test for execution of command where().
• Add test for execution of command select().

Changed

• Change take(), take() can be take an optional argument to specified the type of the parameter.
• Change test with fixture to connect to db and to get a SQLEnumerable in conftest.py.

Fixed

• Fix a bug, all request was made on text, now requests are made on the correct type.