Rspec | named_let は match_array / contain_exactly には効かない ref: http://qiita.com/Yinaura/items/19feab1cfc184cdfbf00

file1.txt

rspec -fd test_spec.rb

file2.txt

  should contain exactly #<Object:0x007fcb73c525b0> and #<Object:0x007fcb73c52588>

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1 example, 0 failures

test_spec.rb

require 'spec_helper'

describe do
  subject { [Object.new, Object.new] }
  named_let(:instances) { subject }
  it { should contain_exactly(*instances) }
end