Skip to content

🧪 Add probability distribution test for pow2_weighted_roll#6

Merged
perim merged 1 commit into
mainfrom
add-pow2-roll-test-750426331697052045
May 22, 2026
Merged

🧪 Add probability distribution test for pow2_weighted_roll#6
perim merged 1 commit into
mainfrom
add-pow2-roll-test-750426331697052045

Conversation

@perim
Copy link
Copy Markdown
Owner

@perim perim commented May 22, 2026

🎯 What: The testing gap for pow2_weighted_roll probability distribution logic has been addressed.
📊 Coverage: A test simulating 1,000,000 rolls checks the mathematical outcome frequencies of pow2_weighted_roll, validating that it actually behaves like a power-of-two distribution with a 10% tolerance margin. The test enforces edge cases like boundary values [0, high].
Result: A significant improvement in the test suite that catches regressions related to deterministic pseudo-random power-of-two roll calculations and decreases the flakiness of the test by using a fixed seed, ensuring mathematical soundness and accuracy.


PR created automatically by Jules for task 750426331697052045 started by @perim

Adds `test_pow2_weighted_roll_distribution` to `tests/test1.cpp` to verify that
`pow2_weighted_roll` correctly generates outcomes following a power-of-two weighted
distribution.

The test operates by performing a large number of rolls and comparing the observed
frequencies against the theoretically expected probability distribution, thereby
ensuring that `pow2_weighted_roll` works exactly as expected without causing regressions.

Co-authored-by: perim <436583+perim@users.noreply.github.com>
@google-labs-jules
Copy link
Copy Markdown
Contributor

👋 Jules, reporting for duty! I'm here to lend a hand with this pull request.

When you start a review, I'll add a 👀 emoji to each comment to let you know I've read it. I'll focus on feedback directed at me and will do my best to stay out of conversations between you and other bots or reviewers to keep the noise down.

I'll push a commit with your requested changes shortly after. Please note there might be a delay between these steps, but rest assured I'm on the job!

For more direct control, you can switch me to Reactive Mode. When this mode is on, I will only act on comments where you specifically mention me with @jules. You can find this option in the Pull Request section of your global Jules UI settings. You can always switch back!

New to Jules? Learn more at jules.google/docs.


For security, I will only act on instructions from the user who triggered this task.

@perim perim merged commit d6fefcc into main May 22, 2026
1 check passed
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

1 participant