skills-copilot-codespaces-vscode/test_app.py at main · github-cloudlabsuser-1234/skills-copilot-codespaces-vscode · GitHub

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import unittest
from unittest.mock import patch
from io import StringIO
from app import calculator

class TestCalculator(unittest.TestCase):

    @patch('builtins.input', side_effect=['1', '10', '5'])
    @patch('sys.stdout', new_callable=StringIO)
    def test_addition(self, mock_stdout, mock_input):
        calculator()
        self.assertIn("The result is: 15.0", mock_stdout.getvalue())

    @patch('builtins.input', side_effect=['2', '10', '5'])
    @patch('sys.stdout', new_callable=StringIO)
    def test_subtraction(self, mock_stdout, mock_input):
        calculator()
        self.assertIn("The result is: 5.0", mock_stdout.getvalue())

    @patch('builtins.input', side_effect=['3', '10', '5'])
    @patch('sys.stdout', new_callable=StringIO)
    def test_multiplication(self, mock_stdout, mock_input):
        calculator()
        self.assertIn("The result is: 50.0", mock_stdout.getvalue())

    @patch('builtins.input', side_effect=['4', '10', '5'])
    @patch('sys.stdout', new_callable=StringIO)
    def test_division(self, mock_stdout, mock_input):
        calculator()
        self.assertIn("The result is: 2.0", mock_stdout.getvalue())

    @patch('builtins.input', side_effect=['4', '10', '0'])
    @patch('sys.stdout', new_callable=StringIO)
    def test_division_by_zero(self, mock_stdout, mock_input):
        calculator()
        self.assertIn("Error: Division by zero is not allowed.", mock_stdout.getvalue())

    @patch('builtins.input', side_effect=['5', '50'])
    @patch('sys.stdout', new_callable=StringIO)
    def test_percentage(self, mock_stdout, mock_input):
        calculator()
        self.assertIn("The result is: 0.5", mock_stdout.getvalue())

    @patch('builtins.input', side_effect=['6'])
    @patch('sys.stdout', new_callable=StringIO)
    def test_invalid_operation(self, mock_stdout, mock_input):
        calculator()
        self.assertIn("Invalid input. Please select a valid operation.", mock_stdout.getvalue())

    @patch('builtins.input', side_effect=['1', 'abc', '5'])
    @patch('sys.stdout', new_callable=StringIO)
    def test_invalid_number_input(self, mock_stdout, mock_input):
        calculator()
        self.assertIn("Error: Please enter a valid number.", mock_stdout.getvalue())

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