Temporary .test_info file should be saved in the temp directory

[robrwo]

It creates a file in the current directory, which causes some QA tests that look for untracked files in the git repo to fail.

The .test_info.*.json files should be saved in a temp directory, using File::Temp etc.

[exodist]

For yath 1.0 the ship has kind of sailed on that one. However at the PTS we were doing a major overhaul of yath to the point we will be releaseding it as Yath 2 (still use the yath command, but both can co-exist). In yath 2 we will be able to make breaking changes like this no problem, and yeah, we should avoid writing to the current directory when possible.

[exodist]

I will also point out though that what the files achieve is hard to do by putting files anywehre else. The real issue here is that they are written without being asked for. The idea is to let yath commands run from that directory find other yath commands already running in that directory, and do some IPC stuff. If you throw them in temp then you do not know what directory they are for and you can connect to the wrong ones. There are of course plenty of ways around that, like making the temp file include what it is to, then iterating all the ones your user owns, etc. Will do better moving forward, but not sure about breaking compatibility on the 1.0 stable (and soon to be legacy) branch.