gist: 7994


  
      Alternative.rb #
    
    
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              # I hear that aliasing lambda is bad, but this is
# much more readable...
 
alias :this_block :lambda
 
this_block{ @this.destroy }.should change(Thing, :count).by(-1)
            
          
      Paul's Idea.rb #
    
    
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              #Throw this in spec helper
def block_should(matcher, &block)
  block.should matcher
end
 
def block_should_not(matcher, &block)
  block.should_not matcher
end
 
#Use it like this
block_should change(Thing, :count).by(-1) do
 @thing.destroy
end
 
#Which is just a little cleaner version of this
lambda do
  @thing.destroy
end.should change(Thing, :count).by(1)
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