Skip to content

Latest commit

 

History

History
47 lines (30 loc) · 2.12 KB

README.md

File metadata and controls

47 lines (30 loc) · 2.12 KB
Raw

PY-OOP-Assignment1

Object Oriented Programming in Python - Assignment 1

  1. Clone this repository (or copy the starter code into your IDE of choice).

  2. Implement the Calculator class. The starter code is in calculator.py.

  3. Write a ScientificCalculator class that is a subclass of Calculator.

    ScientificCalculator has all of the methods of Calculator, plus (at a minimum) these additional methods:

    • sqrt(a) -> returns the square root of a
    • squared(a) -> returns the value of a squared
    • exp(a, b) -> returns the value of a to the power of b

  4. Write a BusinessCalculator class that is a subclass of Calculator.

    BusinessCalculator has all of the methods of Calculator, plus (at a minimum) these additional methods:

    • minus_percent(a, p) -> returns the value of a minus p percent of a
    • plus_tax(a) -> returns the value of a plus 7% tax

  5. Write a GraphingCalculator class that is a subclass of both ScientificCalculator and BusinessCalculator.

    GraphingCalculator has all of the methods of ScientificCalculator and BusinessCalculator, plus the following methods:

    • graph(eq) -> returns a string of your choice (we're just pretending it's a graph)

    • repeat_last_answer() Override this method from the Calculator class and change it so that it returns a string instead of a float. Make sure the answer is contained within the string.

      ex. 'The last answer was 4'

      NOTE: The graph() method should not affect the value of the attribute self.last_answer

  6. Run the test functions for each of your classes and make sure that all tests pass.

    Full test suite is located in calulator_tests.py.

    All Tests

    • python3 -m unittest calculator_tests

    Test a Specific Calculator

    • python -m unittest calculator_tests.BasicCalculatorTest
    • python -m unittest calculator_tests.BusinessCalculatorTest
    • python -m unittest calculator_tests.GraphingCalculatorTest
    • python -m unittest calculator_tests.ScientificCalculator

    Test a Specific Calculator Function

    • python -m unittest calculator_tests.BasicCalculatorTest.test_add