```ruby
require "spec_helper"

describe Organisation do
  let!(:hmrc) { create :organisation }

  describe "#all" do
    it "should have only hmrc loaded" do
      Organisation.all.should eq([hmrc])
    end
  end
  describe "#load_organisations, #initialize" do
    it "should correctly create hmrc" do
      hmrc.title.should eq("HM Revenue & Customs")
      hmrc.format.should eq("Non-ministerial department")
      hmrc.slug.should eq("hm-revenue-customs")
      hmrc.abbreviation.should eq("HMRC")
    end
  end
  describe "#find HMRC" do
    it "should find hmrc by slug" do
      Organisation.find_by_slug("hm-revenue-customs").should eq(hmrc)
    end
  end
  
end
```

Refactor Organisation spec to test methods
user
```ruby
require "spec_helper"

describe Organisation do
  subject(:organisation) { create :organisation, abbreviation: abbreviation, title: title }
  let(:title) { "HM Revenue & Customs" }
  let(:abbreviation) { "HMRC" }

  describe "#title_with_abbreviation" do

    context "when abbreviation is present" do

      it "should append abbreviation to the title" do
        organisation.title_with_abbreviation.should eq("HM Revenue & Customs [HMRC]")
      end
    end

    context "when abbreviation is blank" do
      let(:abbreviation) { nil }

      it "should not append abbreviation to title" do
        organisation.title_with_abbreviation.should eq("HM Revenue & Customs")
      end
    end
  end

  describe "#abbreviation_or_title" do
    context "when abbreviation is present" do

      it "should show abbreviation" do
        organisation.abbreviation_or_title.should eq(abbreviation)
      end
    end

    context "when abbreviation is blank" do
      let(:abbreviation) { nil }

      it "should show title" do
        organisation.abbreviation_or_title.should eq(title)
      end
    end
  end

  describe "#path" do
    it "should return correct path" do
      organisation.path.should eq("/government/organisations/hm-revenue-customs")
    end
  end

end
```
assistant