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Convert specs to RSpec 2.99.0 syntax with Transpec

This conversion is done by Transpec 2.2.1 with the following command:
    transpec

* 178 conversions
    from: it { should ... }
      to: it { is_expected.to ... }

* 40 conversions
    from: it { should_not ... }
      to: it { is_expected.not_to ... }

* 33 conversions
    from: obj.should
      to: expect(obj).to

* 14 conversions
    from: describe 'some model' { }
      to: describe 'some model', :type => :model { }

* 7 conversions
    from: describe 'some feature' { }
      to: describe 'some feature', :type => :feature { }

* 6 conversions
    from: == expected
      to: eq(expected)

* 4 conversions
    from: obj.should_not
      to: expect(obj).not_to

* 3 conversions
    from: =~ /pattern/
      to: match(/pattern/)

* 2 conversions
    from: describe 'some controller' { }
      to: describe 'some controller', :type => :controller { }

* 2 conversions
    from: describe 'some helper' { }
      to: describe 'some helper', :type => :helper { }

* 1 conversion
    from: describe 'some request' { }
      to: describe 'some request', :type => :request { }

* 1 conversion
    from: its(:attr) { }
      to: describe '#attr' do subject { super().attr }; it { } end

* 1 conversion
    from: obj.stub(:message)
      to: allow(obj).to receive(:message)

For more details: https://github.com/yujinakayama/transpec#supported-conversions
Upgrade Capybara, Additional deprecation cleanup