Depends on the test tooling. If you want a single commit to pass integration tests then they need to be in a single commit. Otherwise you're tracking every ve

Depends on the test tooling. If you want a single commit to pass integration tests then they need to be in a single commit. Otherwise you're tracking every version of every tool. But I like to look at the problem from another perspective. Why _not_ use a single repo. The only real reason would be to work around technical challenges with your source control of choice, not because having everything tracked together is inherently bad.