require 'spec_helper'

# We need the view type because helpers specs are to are too minimalistic
# and are missing some initialization stuff.
describe OpalHelper, :js, type: :view do
  let(:helper) { view }

  describe '#opal_tag' do
    it 'compiles to js' do
      allow(helper).to receive(:javascript_tag) { |code| code }
      ruby_code = 'puts 5'

      expect(Opal::Compiler).to receive(:new)
        .with(ruby_code, hash_including(requirable: false))
        .and_call_original

      expect(helper.opal_tag(ruby_code)).to include('self.$puts(5)')
    end
  end

  specify '#javascript_include_tag' do
    # sprockets-rails v3 sets Rails.application.assets to nil in production mode
    allow(Rails.application).to receive(:assets).and_return(nil)

    loading_code = [
      %<if(window.Opal && Opal.modules["application"]){Opal.loaded(typeof(OpalLoaded) === "undefined" ? [] : OpalLoaded);>,
      %<Opal.require("application");}>,
    ].join("\n")

    escaped_loading_code = ERB::Util.h loading_code
    loading_code_in_script_tag = [
      %(<script>), %(//<![CDATA[), loading_code, %(//]]>), %(</script>),
    ].join("\n")

    expect(helper.javascript_include_tag('application', debug: true)).to include(loading_code_in_script_tag)
    expect(helper.javascript_include_tag('application', debug: true)).not_to include(escaped_loading_code)

    expect(helper.javascript_include_tag('application', debug: false)).to include(escaped_loading_code)
    expect(helper.javascript_include_tag('application', debug: false)).not_to include(loading_code_in_script_tag)

    expect(helper.javascript_include_tag('application', skip_opal_loader: true)).not_to include(escaped_loading_code)
    expect(helper.javascript_include_tag('application', skip_opal_loader: false)).to include(loading_code_in_script_tag)

    expect(helper.javascript_include_tag('application', force_opal_loader_tag: true, debug: true)).to include(loading_code_in_script_tag)
    expect(helper.javascript_include_tag('application', force_opal_loader_tag: true, debug: false)).to include(loading_code_in_script_tag)

    expect(helper.javascript_include_tag('application', force_opal_loader_tag: true, skip_opal_loader: true)).not_to include(escaped_loading_code)
    expect(helper.javascript_include_tag('application', force_opal_loader_tag: true, skip_opal_loader: true)).to include(loading_code_in_script_tag)
  end
end