[rspec-users] Asserting on a yield

Matt Wynne matt at mattwynne.net
Wed Mar 7 07:22:39 UTC 2012

Hi all,

I'm spec'ing a method that yields a value. Right now, I spec it like this:

    result = nil
    thing.do_stuff { |value| result = value }
    result.should == expected

This feels like too much ceremony. What I want to do is something more this:

   thing.do_stuff.should yield_value(expected)

Is there anything built into RSpec to let me do this? If not, how do other people test yields?


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Author, http://pragprog.com/book/hwcuc/the-cucumber-book
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Twitter, https://twitter.com/mattwynne

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