cabal-install test suite has tricky hysteresis problems

[ezyang]

Put simply, it seems pretty sensitive to previous test runs, does an imperfect job of cleaning up after itself, etc. I'll post more detailed debugging information after I figure it out...

[ezyang]

OK, so one thing that I think is happening, is if I run 'cabal test' in a sandbox, it will still use the executable in the sandbox bin, rather than the locally built dist one. Which is wrong wrong wrong.

[23Skidoo]

it will still use the executable in the sandbox bin, rather than the locally built dist one

Yes, this is a known issue. I think it always uses the one in PATH. That's why it's not enabled on Travis (yet).

[benarmston]

@ezyang I've fixed the only hysteresis issues that I'm aware of with the cabal-install tests. If you can provide details of any others, I can have a look at them too.

[ttuegel]

Closing this, as it appears to be resolved.