Asking AI to Write Test Cases

# Test case generation prompt template

test_cases_prompt = """
Write unit tests for this Python function using pytest.

Function to test:
def calculate_discount(price, discount_percent):
    if discount_percent < 0 or discount_percent > 100:
        raise ValueError("Discount must be between 0 and 100")
    return price * (1 - discount_percent / 100)

Write tests that cover:
1. A normal case with a valid price and discount
2. A 0% discount (price unchanged)
3. A 100% discount (price becomes 0)
4. Negative discount (should raise ValueError)
5. Discount over 100% (should raise ValueError)

Format: use pytest style with clear test function names.
Include a brief comment explaining what each test checks.
"""

# The generated tests will cover:
# - Happy path (normal inputs)
# - Boundary cases (0%, 100%)
# - Error cases (invalid inputs)

print("Good test prompts specify the framework and all edge cases.")
print("Review AI-generated tests and add any cases it missed.")