Ignore mixpanel for test also
Convert specs to RSpec 3.0.3 syntax with Transpec

This conversion is done by Transpec 2.3.6 with the following command:
    transpec

* 8 conversions
    from: be_true
      to: be_truthy

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

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

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

* 3 conversions
    from: describe 'some request' { }
      to: describe 'some request', :type => :request { }

* 3 conversions
    from: expect(obj).to have(n).error_on(...)
      to: expect(obj.error_on(...).size).to eq(n)

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

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

* 2 conversions
    from: be_false
      to: be_falsey

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

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

* 1 conversion
    from: expect(obj).to have(n).errors_on(...)
      to: expect(obj.errors_on(...).size).to eq(n)

* 1 conversion
    from: it { should_not ... }
      to: it { is_expected.not_to ... }

For more details: https://github.com/yujinakayama/transpec#supported-conversions
make the tests pass, to enable a clean platform for further tests