TestSelector

Based on TestSelector for Elixir, a gem that adds a test-selector to the HTML so it can be found in the tests.

After installing this gem the views have a helper method test_selector that can be used as:

<!--- app/views/some/view.erb --->
<p <%= test_selector "description", 1 %>the description of entity 1</p>

<p <%= test_selector "description", 2 %>the description of entity 2</p>

That will result in:

<p test-selector="_app_views_some_view_erb__description" test-value="1">the description of entity 1</p>

<p test-selector="_app_views_some_view_erb__description" test-value="2">the description of entity 2</p>

In the test this can be found with:

it "assert the second description" do
  ... # some setup

  test_part = test_selector(path, "description", 1)
  expect(find_test_selector page.body, test_part).to have_content "the description of entity 2"
end

Add this line to your application's Gemfile:

• Dependencie: Rails

Add to the Gemfile

gem 'test_selector'

Execute:

$ bundle

include in the test framework you're using, for RSpec:

require 'test_selector'

RSpec.configure do |config|
  ...

  config.include TestSelector::TestHelpers
end

The gem is available as open source under the terms of the MIT License.