Advice on DRYing this test up?

gistfile1.rb

FIREFOX_FIXTURES = [
  {
    browser: 'Firefox',
    gecko_version: '20101203',
    os: 'Intel Mac OS X 10.6',
    platform: 'Macintosh',
    raw: 'Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.13) Gecko/20101203 Firefox/3.6.13',
    version: '3.6.13'
  },
  {
    browser: 'Firefox',
    gecko_version: '20100101',
    os: 'Intel Mac OS X 10.6',
    platform: 'Macintosh',
    raw: 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0b8) Gecko/20100101 Firefox/4.0b8',
    version: '4.0b8'
  }
]

describe 'self.parse' do
  FIREFOX_FIXTURES.each do |fixture|
    context "given #{fixture}" do
      before do
        @user_agent = UserAgent.parse(fixture[:raw])
      end

      it 'is not mobile' do
        @user_agent.should_not be_mobile
      end

      it 'is not Webkit' do
        @user_agent.should_not be_webkit
      end

      it 'sets browser to Firefox' do
        @user_agent.browser.should == fixture[:browser]
      end

      it 'sets correct gecko version' do
        @user_agent.gecko.version.should == fixture[:gecko_version]
      end

      it 'sets correct operating system' do
        @user_agent.os.should == fixture[:os]
      end

      it 'sets correct platform' do
        @user_agent.platform.should == fixture[:platform]
      end

      it 'sets correct version' do
        @user_agent.version.should == fixture[:version]
      end

      it 'sets localization to nil' do
        @user_agent.localization.should be_nil
      end

      it 'sets security to strong' do
        @user_agent.security.should == :strong
      end
    end
  end
end