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Stop rescuing all exceptions. #2063
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| @@ -178,4 +178,12 @@ def self.const_missing(name) | |||
| require MODULES_TO_AUTOLOAD.fetch(name) { return super } | |||
| ::RSpec.const_get(name) | |||
| end | |||
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| module NonPassthroughExceptions | |||
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no idea ... if only we had a bisect feature... :P |
Tried it. Here's the output so far: |
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OK, I figured out the source of the problem.
I'm not sure on what the right fix for this is. We could potentially treat Any thoughts, @rspec/rspec? @SephVelut, as the one who opened #2058, what do you think? |
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Good dig into the problem @myronmarston! Testing a process that happens to fork and exit on the same tty - with a stack that contains callbacks to rspec - is definitely a gotcha. You'll wonder why you're getting multiple runs of the tests. But I think its probably an unavoidable gotcha when testing forks. Tracking the pid on the reporter is an interesting idea. But I can also se why
I'm inclined to agree. I suppose even a feature for 'turning off' reporting in subprocess that exits won't be a better solution than simply using Here is my current suggestion. Lets add a note to gotchas and suggest manually rescuing |
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I'm not sure if we need it for when users are running specs via the I tried removing the Removing the
Mine, too. (Particularly since I've not heard of anyone else running into this gotcha).
What gotchas list do you want a note added to? You linked to capybara. Anyhow, what you suggested made me realize this would work: RSpec.configure do |c|
c.around(:example) do |ex|
begin
ex.run
rescue SystemExit
exit!
end
end
endYou could use a hook like this to transform an As for this PR...regardless of if we do anything in particular for the |
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I looked a bit more into the
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fwiw I always wanted
Agree
Legit. |
It's not required to do it twice (or at least it shouldn't be). When you hit In my experience, the 1st ctrl-c does the cleanup exit pretty quickly as long as it's not a large project with lots of cleanup to perform. I just tried it while running Your projects are perhaps just quite large? Or maybe you've hit a genuine bug no one's reported where RSpec isn't able to exit on the first ctrl-c for some reason. |
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it's the large projects thing. Actually when I think about it the current behaviour is a good default for most people. |
Yeah, my bad. In any case this thread's existence is probably good enough as I'd like to think most people would eventually conduct a search on the issue page. |
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This was referenced Aug 29, 2015
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| @@ -227,14 +227,14 @@ def run(example_group_instance, reporter) | |||
| rescue Pending::SkipDeclaredInExample | |||
| # no-op, required metadata has already been set by the `skip` | |||
| # method. | |||
| rescue Exception => e | |||
| rescue Support::AllExceptionsExceptOnesWeMustNotRescue => e | |||
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I don't understand why, but somehow this change causes a failure for this cucumber scenario on 1.8.7:
https://travis-ci.org/rspec/rspec-core/jobs/77979590
If I change this back to Exception that passes. Makes absolutely no sense to me :(.
Anyone got any ideas why?
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We do want to generally rescue `Exception` and any subclasses but there are a few exceptions we should not rescue. For example, if we rescue `SystemExit`, it prevents `exit` from exiting. Part of #2058.
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This is finally green! Anyone from @rspec/rspec want to do a final review before I merge? |
| set_exception(e) | ||
| ensure | ||
| run_after_example | ||
| end | ||
| end | ||
| end | ||
| rescue Exception => e | ||
| rescue Support::AllExceptionsExceptOnesWeMustNotRescue => e |
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Namespaced here but not above?
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The one above is RSpec::Core::AllExceptionsExcludingDangerousOnesOnRubiesThatAllowIt, not a constant from the RSpec::Support namespace. See the definition and comment below. Yes, it's weird.
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LGTM |
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Stop rescuing all exceptions.
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Stop rescuing all exceptions.
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We do want to generally rescue
Exceptionandany subclasses but there are a few exceptions
we should not rescue. For example, if we rescue
SystemExit, it preventsexitfrom exiting.Attempted fix for #2058.
Note that the spec I added failed without these changes and passes with it...but there are some other weird effects that I do not understand:
I'm a bit at a loss for what's causing this. Anyone from @rspec/rspec got any ideas?