Instance variable in Rails helper not set

Question

I try to set some options in a rails helper, but it seems it's got overridden every time.

module MetaTagHelper

  def meta_options
    @meta_options ||= {}
  end

  def add_meta_tag_options(opt)
    meta_options.deep_merge(opt)
  end
end

Here is the test

require 'rspec'

describe MetaTagHelper do

  it 'options should be set' do
    option = {region: "1"}
    option2 = {country: "AT"}
    helper.add_meta_tag_options(option)
    helper.add_meta_tag_options(option2).should eql(option.merge option2)
  end
end


expected: {:region=>"1", :country=>"AT"}
     got: {:country=>"AT"}

How can I get the spec pass?

deep_merge returns a new hash, maybe you're looking for deep_merge! — Stefan
– Stefan, Commented Nov 24, 2014 at 10:55

Uri Agassi · Accepted Answer · 2014-11-24 10:56:46Z

1

Try using deep_merge!:

  def add_meta_tag_options(opt)
    meta_options.deep_merge!(opt)
  end

answered Nov 24, 2014 at 10:56

Uri Agassi

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