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import pytest from calculator import Calculator, CalculatorError def test_add(): calculator = Calculator() result = calculator.add(2, 3) assert result == 5 def test_add_weird_stuff(): calculator = Calculator() with pytest.raises(CalculatorError): result = calculator.add("two", 3) def test_add_weirder_stuff(): calculator = Calculator() with pytest.raises(CalculatorError): result = calculator.add("two", "three") def test_subtract(): calculator = Calculator() result = calculator.subtract(9, 3) assert result == 6 def test_multiply(): calculator = Calculator() result = calculator.multiply(9, 3) assert result == 27 def test_divide(): calculator = Calculator() result = calculator.divide(9, 3) assert result == 3 def test_divide_by_zero(): calculator = Calculator() with pytest.raises(CalculatorError): result = calculator.divide(9, 0)