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Update coverage #1905
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Update coverage #1905
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`system` returns a boolean value to indicate success/failure, but the use of `failure_message` was in a `rescue` block that never got executed. It appears this has been broken since ea70e4e. Before that commit, we used `Rake::FileUtilsExt#ruby`, which does indicate failure by raising an error (and thus the `rescue` was correct). In ea70e4e, we switched to using `system` and the rescue was left in place but never got hit anymore. The lack of test coverage here is why we never noticed, so I addressed that as well.
`RSpec::CallerFilter.first_non_rspec_line` either returns the line or raises an error, so the branch for when `line` is nil could never be reached.
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As it turns out, we need to skip simplecov on MRI 2.0 as well. It's just 2.1 and 2.2 that run it. |
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LGTM, left a couple of non-blocking comments. |
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This is awesome! Well done |
This was referenced Apr 11, 2015
This was referenced Oct 1, 2015
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Update coverage
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I recently learned that
# :nocov:can be used to tag a chunk of code so simplecov doesn't consider it. Before learning that, I never bothered to try to get our coverage up because we have so many places where we do alternate method implementations for certain versions of ruby or for windows or whatever. With# :nocov:, it's trivial to tag those so that we can actually meaningfully consider coverage.I've written a bit about my test coverage philosophy in the past. Besides all the alternate method implementations, keeping coverage up for RSpec's actually not hard, and I think we get enough value out of it to enforce it. I've seen a couple PRs from contributors where they added tests but because of how it was written it wasn't even executing the implementation it was intended to. Enforcing coverage will cause our travis build to catch such things for us.
In this PR, I've gotten coverage up to 100% and configured simplecov to enforce it on our "main" builds (travis builds for MRI >= 2.0), and I've stopped loading simplecov for other builds. The uncovered code generally fell into 3 categories:
# :nocov:.Ideally, I'd like to see this same treatment done for expectations/mocks/support. Anyone want to take that on?
/cc @rspec/rspec