Developer.Implement chain for #43

[desjoerd-test-bot[bot]]

Write the code to create unittests that cover the basic arithmetic operations (addition, subtraction, multiplication, division) in the Calculator class

[desjoerd-test-bot[bot]]

Sure! Here's an example of a bash script that creates the necessary files for unit tests covering the basic arithmetic operations in the Calculator class.

#!/bin/bash

# Create the Calculator class definition file
cat <<EOF > calculator.py
class Calculator:
    def add(self, a, b):
        return a + b

    def subtract(self, a, b):
        return a - b

    def multiply(self, a, b):
        return a * b

    def divide(self, a, b):
        if b == 0:
            raise ValueError("Cannot divide by zero")
        return a / b
EOF

# Create the unittest test file for Calculator class
cat <<EOF > test_calculator.py
import unittest
from calculator import Calculator

class TestCalculator(unittest.TestCase):
    def setUp(self):
        self.calculator = Calculator()

    def test_add(self):
        result = self.calculator.add(2, 3)
        self.assertEqual(result, 5)

    def test_subtract(self):
        result = self.calculator.subtract(5, 2)
        self.assertEqual(result, 3)

    def test_multiply(self):
        result = self.calculator.multiply(4, 5)
        self.assertEqual(result, 20)

    def test_divide(self):
        result = self.calculator.divide(10, 2)
        self.assertEqual(result, 5)

        with self.assertRaises(ValueError):
            self.calculator.divide(10, 0)

if __name__ == '__main__':
    unittest.main()
EOF

# Run the unit tests
python -m unittest test_calculator.py

This bash script creates two files: calculator.py, which contains the Calculator class definition with the basic arithmetic operations, and test_calculator.py, which contains the unit tests for the Calculator class.

The unit tests cover the four basic arithmetic operations (addition, subtraction, multiplication, division) and also include a test for division by zero.

Finally, the script runs the unit tests using the python -m unittest command.

Please note that the script assumes you have Python installed on your system.