import pytest from fabelous_math import is_even, is_odd def test_is_even(): # Test positive even numbers assert is_even(0) == True assert is_even(2) == True assert is_even(4) == True assert is_even(100) == True # Test positive odd numbers assert is_even(1) == False assert is_even(3) == False assert is_even(99) == False # Test negative even numbers assert is_even(-2) == True assert is_even(-4) == True assert is_even(-100) == True # Test negative odd numbers assert is_even(-1) == False assert is_even(-3) == False assert is_even(-99) == False # Test large numbers assert is_even(1000000) == True assert is_even(-1000001) == False def test_is_odd(): # Test positive odd numbers assert is_odd(1) == True assert is_odd(3) == True assert is_odd(99) == True # Test positive even numbers assert is_odd(0) == False assert is_odd(2) == False assert is_odd(4) == False assert is_odd(100) == False # Test negative odd numbers assert is_odd(-1) == True assert is_odd(-3) == True assert is_odd(-99) == True # Test negative even numbers assert is_odd(-2) == False assert is_odd(-4) == False assert is_odd(-100) == False # Test large numbers assert is_odd(1000001) == True assert is_odd(-1000000) == False def test_is_even_is_odd_complementary(): # Ensure is_even and is_odd are complementary for various numbers test_numbers = [0, 1, -1, 2, -2, 99, -99, 1000000, -1000001] for num in test_numbers: assert is_even(num) != is_odd(num), \ f"Failed for number {num}: is_even and is_odd should be opposite"