This is basically what I'm trying to figure out before walking in.
Start by clarifying the problem and defining the expected behavior through tests, then iteratively write minimal code to pass each test while refactoring for clarity. Emphasize the red-green-refactor cycle and how you structure code into small, focused functions with clear naming and separation of concerns.
Pro tip: During the pair interview, narrate your thought process and invite your partner to contribute; this demonstrates collaboration and that you value collective code ownership. Also, write tests that are readable and act as documentation, not just assertions.
Ask questions to understand the problem, edge cases, and expected behavior. Discuss with your partner to align on the approach before writing any code.
Start with the simplest test that captures a small piece of desired behavior. Ensure the test fails for the right reason and is readable.
Implement just enough code to make the test pass, without over-engineering. Focus on making it work first.
Improve the code structure, remove duplication, and enhance naming while keeping tests green. Apply design principles like SOLID and DRY.
Continue the cycle for new behaviors, ensuring tests remain fast and isolated. Discuss how you would integrate with existing systems and handle dependencies.
AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.