```ruby
# Encoding: utf-8
require 'test_helper'

class TrackTest < ActiveSupport::TestCase
  # test "the truth" do
  #   assert true
  # end
end
```

Add header to track model test
user
```ruby
# Encoding: utf-8
require 'test_helper'

# Test track model
class TrackTest < ActiveSupport::TestCase
  # test "the truth" do
  #   assert true
  # end
end
```
assistant