$ be cucumber features/subject/attribute_of_subject.feature:104 --format pretty
Using the default profile...
Feature: attribute of subject
  Use the its() method as a short-hand to generate a nested example group with
  a single example that specifies the expected value of an attribute of the
  subject.  This can be used with an implicit or explicit subject.

  its() accepts a symbol or a string, and a block representing the example.

  its(:size)    { should eq(1) }
  its("length") { should eq(1) }

  You can use a string with dots to specify a nested attribute (i.e. an
  attribute of the attribute of the subject).

  its("phone_numbers.size") { should eq(2) }

  When the subject is a hash, you can pass in an array with a single key to
  access the value at that key in the hash.

  its([:key]) { should eq(value) }

  Scenario: specify value for key in a hash-like object # features/subject/attribute_of_subject.feature:104
    Given a file named "example_spec.rb" with:          # aruba-0.2.2/lib/aruba/cucumber.rb:66
      """
      require 'matrix'

      describe Matrix do
        context "with values [[1, 2] [3, 4]]" do
          subject do
            Matrix[[1, 2] [3, 4]]
          end

          its([0, 1]) { should eq(2) }
          its([1, 0]) { should eq(3) }
          its([1, 2]) { should be_nil }
        end
      end
      """
    When I run "rspec example_spec.rb"                  # aruba-0.2.2/lib/aruba/cucumber.rb:90
    Then the examples should all pass                   # features/step_definitions/additional_cli_steps.rb:13
      expected: /0\ failures/
           got: "FFF\n\nFailures:\n\n  1) Matrix with values [[1, 2] [3, 4]] 01 \n     Failure/Error: its([0, 1]) { should eq(2) }\n     NoMethodError:\n       undefined method `[]' for nil:NilClass\n     # ./example_spec.rb:9\n\n  2) Matrix with values [[1, 2] [3, 4]] 10 \n     Failure/Error: its([1, 0]) { should eq(3) }\n     NoMethodError:\n       undefined method `[]' for nil:NilClass\n     # ./example_spec.rb:10\n\n  3) Matrix with values [[1, 2] [3, 4]] 12 \n     Failure/Error: its([1, 2]) { should be_nil }\n     NoMethodError:\n       undefined method `[]' for nil:NilClass\n     # ./example_spec.rb:11\n\nFinished in 0.00195 seconds\n3 examples, 3 failures\n" (using =~)
      Diff:
      @@ -1,2 +1,25 @@
      -/0\ failures/
      +FFF
      +
      +Failures:
      +
      +  1) Matrix with values [[1, 2] [3, 4]] 01
      +     Failure/Error: its([0, 1]) { should eq(2) }
      +     NoMethodError:
      +       undefined method `[]' for nil:NilClass
      +     # ./example_spec.rb:9
      +
      +  2) Matrix with values [[1, 2] [3, 4]] 10
      +     Failure/Error: its([1, 0]) { should eq(3) }
      +     NoMethodError:
      +       undefined method `[]' for nil:NilClass
      +     # ./example_spec.rb:10
      +
      +  3) Matrix with values [[1, 2] [3, 4]] 12
      +     Failure/Error: its([1, 2]) { should be_nil }
      +     NoMethodError:
      +       undefined method `[]' for nil:NilClass
      +     # ./example_spec.rb:11
      +
      +Finished in 0.00195 seconds
      +3 examples, 3 failures
       (RSpec::Expectations::ExpectationNotMetError)
      features/subject/attribute_of_subject.feature:122:in `Then the examples should all pass'

Failing Scenarios:
cucumber features/subject/attribute_of_subject.feature:104 # Scenario: specify value for key in a hash-like object

1 scenario (1 failed)
3 steps (1 failed, 2 passed)
0m0.653s