Testing "nested components"

[MatheusRich]

I have a TextField component that handles a form field with its labels and errors. It needs the form object as argument, so in the tests I'm doing something like this:

subject(:render_component) do
  form_with(model: model) do |form|
    render_inline(TextField::Component.new(form, :name, **options)).to_html.html_safe
  end
end

Is that the recommended way to render a "nested" component like this? I really need .to_html.html_safe there? Any thoughts?

[edouard-per-angusta]

Sorry I'm not answering the question but bringing another one: how do you access form_with helper in your component spec?

[MatheusRich]

Just include some modules (you'll have to tweak a bit because I don't remember exactly which ones are necessary)

RSpec.describe My::Component, type: :component do
  include ActionView::Context
  include ActionView::Helpers::FormHelper
  include Rails.application.routes.url_helpers

[edouard-per-angusta]

Thanks!