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This is such a very ambiguous practice to be applied to everyone. The issue remains that not_to raise_error(SomethingSpecific) is prone to silencing legitimate errors and giving you false confidence, and a given block of code will either raise no errors (in which case Join them; it only takes a minute: Sign up How to test exception raising in Rails/RSpec? Sign in. this contact form

Browse other questions tagged ruby-on-rails ruby unit-testing rspec stubbing or ask your own question. RSpec member myronmarston commented Nov 14, 2013 We are assuming, in this case, that the library code is not changing. We recommend upgrading to the latest Safari, Google Chrome, or Firefox. Discontinuity in the angle of a complex exponential signal How to describe very tasty and probably unhealthy food Are illegal immigrants more likely to commit crimes?

Rspec Mock Raise Exception

Exactly, sorry for my poor English. share|improve this answer edited Mar 23 '15 at 7:43 answered Mar 3 '14 at 8:21 Jakob S 12.3k22629 It hasn't helped –malcoauri Mar 3 '14 at 8:34 It is not like a HAML or SLiM what builds a syntax tree and checks it before compile/run the template code itself. The way I have things now, if someone were to rename a method in a model or controller, it would very quickly break those model/controller tests.

RSpec member myronmarston commented Nov 14, 2013 @mckinnsb -- I'm still convinced that your use is a bad idea. It is similar to the situation when you test the output equals to a number, or not that number, or any other number? In my case, for instance, I have an application that raises a CanCan::AccessDenied error. Rspec Receive And Raise Sign up Sign in Home Public projects Plans & pricing Project: RSpec Expectations 3.5 Publisher: RSpec Change version 3.5 3.4 3.3 3.2 3.1 3.0 2.99 2.14 2.13 2.12 2.11 2.10 2.9

This controller test is testing exactly what it should be. Rspec Allow Raise Error mckinnsb commented Nov 14, 2013 As long as it suits my needs, no I don't. If you get a SyntaxError you know you did something wrong. As to why I do not check for all errors, it's actually because of the situation you have just outlined.

See: rspec/rspec-expectations#231">Remove use of deprecated 'should_not raise_error(SpecificError)' … RSpec has since deprecated this construct. Rspec Allow Raise_error I forgot to define this exception class. There would certainly be errors somewhere else in the tests. But certainly, something in the stack might be handling the error before it bubbles up to the spec runner. –Jakob S Mar 13 '15 at 9:41 | show 1 more comment

Rspec Allow Raise Error

However, that would mean you should then start adding test to make sure each possible error (that you know of) is not raised as you are testing. Methods that raise/throw an exception for others to handle. Rspec Mock Raise Exception Here is what I'm doing: expect { handler.each { true } }.not_to raise_error(ArgumentError, /user malicious_filename.jpg/) expect { handler.each { true } }.not_to raise_error The actual Exception is: #

The exception test will pass falsely. http://lebloggeek.com/raise-error/raise-error-in-vb-6-0.html If CanCan::AccessDenied is raised, the spec will fail as you expect, and it's not prone to false positives. And no syntax checking method in ERB templating engine, because it is not a high-level templating language. Which lane to enter on this roundabout? (UK) The ambiguous "he is buried" Why is Pascal's Triangle called a Triangle? Rspec Rescue Error

Note: raise_error and raise_exception are interchangeable. Consider if the spec is like this: expect { some_object.do_something }.not_to raise_error(SomeError) Later, we rename the do_something method to do_something_else, and run our specs to find all the places we need Use `expect { }.not_to raise_error()` instead. http://lebloggeek.com/raise-error/raise-error-in-vb-net.html Are there any historically significant examples?

But if SpecificException is raised by the block we have a pretty message. # This matcher will return: # 1. Rspec Raise Error Not Working I understand that in nearly every other case this block of code is fundamentally unsafe. Thanks!

rspec/rspec-expectations#231 ecf179c mckinnsb commented Nov 14, 2013 @hron84 @myronmarston I found this thread a bit late but I've more or less come here to chime in on @hron84 's

Contact GitHub API Training Shop Blog About © 2016 GitHub, Inc. With a named exception, matches only if that specific exception is raised. some_method.should_raise exception ... Rspec Exception Handling Are illegal immigrants more likely to commit crimes?

See: rspec/rspec-expectations#231 45d2b62 tkrajcar referenced this issue in tkrajcar/carbonmu Mar 21, 2014 tkrajcar solve deprecation warning b4ab67c julz referenced this issue Related 1275Catch multiple exceptions at once?343Begin, Rescue and Ensure in Ruby?4Michael Hartl's Rails Tutorial: Rspec's “Expected response to be a redirect to …” is wrong171rspec how to run a single test?1226Catch Join them; it only takes a minute: Sign up How to stub error raising using Rspec in Rails? http://lebloggeek.com/raise-error/raise-error-vb-net.html FALSE if the code was run but raised (only) the specified exception # # It *will* raise an exception if the block of code raises an exception other than # (the

You also don't know what other errors you are creating. This message can be supressed by setting: RSpec::Expectations.configuration.warn_about_potential_false_positives = false. Browse other questions tagged ruby-on-rails ruby rspec or ask your own question. This test is no a false positive that is giving you a false sense of confidence.

I'm not 100% sure what you mean by this, but it sounds like you're saying a naive developer assumes this expectation concerns itself only with the named exception, and would allow When this happens your must do you best to re-factor the method in order to make it more testable. Regardless, I don't think to silence it. If I want to test it 'not that number' I must be able to do it, you can't say that you prefer it is to be 'any number' for a broader

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