[gregthelaw]

I would say yes, your CI should accumulate all of those regression tests. Where I work we now have many, many thousands of regression test cases. There's a subset to be run prior to merge which runs in reasonable time, but the full CI just cycles through.

For this to work all the regression tests must be fast, and 100% reliable. It's worth it though. If the mistake was made once, unless there's a regression test to catch it, it'll be made again at some point.

[lelanthran]

> For this to work all the regression tests must be fast,

Doesn't matter how fast it is, if you're continually adding tests for every single line of code introduced eventually it will get so slow you will want to prune away old tests.