added tests

test-projects/python-basic/tests/test_calculator.py

@@ -0,0 +1,47 @@
+"""Tests for the calculator module."""
+
+import pytest
+from test_package.calculator import Calculator
+
+
+class TestCalculator:
+    """Test cases for Calculator class."""
+    
+    def setup_method(self):
+        """Set up test fixtures."""
+        self.calc = Calculator()
+    
+    def test_add(self):
+        """Test addition operation."""
+        assert self.calc.add(2, 3) == 5
+        assert self.calc.add(-1, 1) == 0
+        assert self.calc.add(0.1, 0.2) == pytest.approx(0.3)
+    
+    def test_subtract(self):
+        """Test subtraction operation."""
+        assert self.calc.subtract(5, 3) == 2
+        assert self.calc.subtract(1, 1) == 0
+        assert self.calc.subtract(-1, -2) == 1
+    
+    def test_multiply(self):
+        """Test multiplication operation."""
+        assert self.calc.multiply(3, 4) == 12
+        assert self.calc.multiply(-2, 3) == -6
+        assert self.calc.multiply(0, 100) == 0
+    
+    def test_divide(self):
+        """Test division operation."""
+        assert self.calc.divide(10, 2) == 5.0
+        assert self.calc.divide(7, 2) == 3.5
+        assert self.calc.divide(-6, 3) == -2.0
+    
+    def test_divide_by_zero(self):
+        """Test division by zero raises error."""
+        with pytest.raises(ValueError, match="Cannot divide by zero"):
+            self.calc.divide(5, 0)
+    
+    def test_power(self):
+        """Test power operation."""
+        assert self.calc.power(2, 3) == 8
+        assert self.calc.power(5, 0) == 1
+        assert self.calc.power(2, -1) == 0.5

test-projects/python-basic/tests/test_utils.py

@@ -0,0 +1,41 @@
+"""Tests for the utils module."""
+
+import pytest
+from test_package.utils import format_number, is_even, factorial
+
+
+class TestUtils:
+    """Test cases for utility functions."""
+    
+    def test_format_number_integer(self):
+        """Test formatting integers."""
+        assert format_number(42) == "42"
+        assert format_number(-5) == "-5"
+    
+    def test_format_number_float(self):
+        """Test formatting floats."""
+        assert format_number(3.14159) == "3.14"
+        assert format_number(3.14159, 3) == "3.142"
+        assert format_number(2.0) == "2.00"
+    
+    def test_is_even(self):
+        """Test even number detection."""
+        assert is_even(2) is True
+        assert is_even(4) is True
+        assert is_even(1) is False
+        assert is_even(3) is False
+        assert is_even(0) is True
+        assert is_even(-2) is True
+        assert is_even(-1) is False
+    
+    def test_factorial_positive(self):
+        """Test factorial of positive numbers."""
+        assert factorial(0) == 1
+        assert factorial(1) == 1
+        assert factorial(5) == 120
+        assert factorial(3) == 6
+    
+    def test_factorial_negative(self):
+        """Test factorial of negative numbers raises error."""
+        with pytest.raises(ValueError, match="Factorial is not defined for negative numbers"):
+            factorial(-1)