Heimdl and Greptile

Greptile says safe to merge, Heimdl checks the tests would notice if it were not

Two different questions

Greptile asks

“Does this change look right?”

Heimdl asks

“If this change were wrong, would a test fail?”

Across the 2 pull requests Greptile reviewed, the tests missed 84% of the changes

Greptile, #8160“Safe to merge.”

Running both

Keep Greptile for review, add Heimdl for proof your tests hold the change

Other comparisons

Missed, the share of changes on the pull requests a reviewer reviewed that no test caught, survived plus uncovered

From Heimdl’s published audits of public pull requests, a reviewer is listed where it commented on the pull request