rspec_sadness_the_first.rb

  specify "the first time rspec has made me sad" do
    class CustomError < RuntimeError; end
    expect do
      raise CustomError.new('what')
    end.to raise_error(CustomError.new('what'))
  end

raise_error?

Still fails. Thanks though.

You can't give raise_error an instance - it needs to be an exception type: raise_error(CustomError).

It sorta makes sense, assuming Exceptions don't implement == well.

I think === is used to match exceptions - also by rescue.