Calculator test for Ascentio
Requirements were not clearly defined. Several assumptions were made in order to keep things simple, extendable, easy to maintain and easy to use. I did not make requirements refinement because it will take us longer than expected and it was consider outside the scope of this exercise.
Languaje: Python Web framework: Django Math parser/engine: sympy Rest API framework: django-tastypie
Development methodology: TDD (Test Driven Development) Code style: PEP-8
I try to use libraries as much as possible instead of developing custom code for problem like this. Math parsing is not a minor problem and is really important to keep a maintainable code.
- pip
- Virtualenv wrapper
- git
- Clone repository
$ cd calculator
- Create virtual environments
$ mkvirtualenv calculator
- Load requirements
$ pip install -r requirements.txt
- Create sqlite3 database and a superuser with:
$ python manage.py syncdb
- Run tests:
$ python manage.py test solve
- Run server
$ python manage.py runserver
- Visit page with your browser http://localhost:8000/
To use the calculator you should be logged in.
- help (will list the list of available commands)
- load <session_name> (will list all the commands stored in a session)
- save <session_name> (will save all the commands not saved in a session)
- Enter a equation to be solved
- addition
( <exp> + <exp> ) - subtraction
( <exp> - <exp> ) - multiplication
( <exp> * <exp> ) - division
( <exp> / <exp> ) - logarithm
( log(<exp>) )
- Add functional tests
- Add code and general documentation�
- Manual tests (focus on data validation, lenght, special chars, vulnerabilities, etc)
- Bug fixing
- Client Demo