What prompt improves Copilot’s suggestions for unit test edge cases?

Ask any question about AI Coding here... and get an instant response.

Post this Question & Answer:

What prompt improves Copilot’s suggestions for unit test edge cases?

Asked on Oct 04, 2025

Answer

To enhance GitHub Copilot's suggestions for generating unit test edge cases, you can use a prompt that clearly specifies the function's purpose and edge cases you want to cover. This helps Copilot understand the context and generate more accurate test cases.

<!-- BEGIN COPY / PASTE -->
    # Function to test
    def calculate_discount(price, discount_rate):
        # ... function implementation ...

    # Unit test for edge cases
    # Test with zero price, negative discount, and high discount rate
    def test_calculate_discount():
        assert calculate_discount(0, 0.1) == 0
        assert calculate_discount(100, -0.1) == 100
        assert calculate_discount(100, 1.5) == 0
    <!-- END COPY / PASTE -->

Additional Comment:

Clearly define the function and its parameters in the prompt to help Copilot generate relevant tests.
List specific edge cases you want to cover, such as zero values, negative inputs, or boundary conditions.
Review and adjust the generated tests to ensure they align with your application's logic and requirements.

✅ Answered with AI Coding best practices.

Ask any question about AI Coding here... and get an instant response.

What prompt improves Copilot’s suggestions for unit test edge cases?

Asked on Oct 04, 2025

Answer

The Q&A Network