```ruby
require 'test_helper'

class WelcomeControllerTest < ActionController::TestCase
  test "should get index" do
    get :index
    assert_response :success
  end

end
```

Add one more test to make it more fun
user
```ruby
require 'test_helper'

class WelcomeControllerTest < ActionController::TestCase
  test "should get index" do
    get :index
    assert_response :success
    assert_template :index
  end

end
```
assistant