Add some tests for application_name helper
user
```ruby
require 'test_helper'

class HelpersContext
  include Eastwood::Helpers
end

class Eastwood::HelpersTest < ActiveSupport::TestCase
  
  setup do
    @context = HelpersContext.new
  end
  
  # application_name
  
  test "should define application_name" do
    assert_respond_to @context, :application_name
  end
  test "should return the application name" do
    assert_equal @context.application_name, 'Dummy'
  end
  
  
  
end
```
assistant