Fix CI tests

[rossviljoen]

Copies CI test setup from ApproximateGPs

[willtebbutt]

Looks like the Window's runner doesn't have enough memory. I wonder whether the ubuntu failures are also caused by out-of-memory problems?

[rossviljoen]

The last commit is showing up on the branch but not on this pr somehow?

Edit: ok now it is

[willtebbutt]

The last commit is showing up on the branch but not on this pr somehow?

Maybe you need to rebase onto master? My git knowledge is bad. Either way, I wouldn't worry about it.

edit: ignore me.

[codecov]

Codecov Report

Merging #28 (450d79f) into master (4302741) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master       #28   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            1         1           
  Lines           51        51           
=========================================
  Hits            51        51           

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[willtebbutt]

Okay. I'm happy for this to go in when CI passes (looks like it's going to). I would imagine that the tests on the empirical covariance are probably still good enough to prevent any really bad bugs from creeping in, so probably 1_000 samples is fine.