require "rails_helper"

RSpec.describe LocaleResolver do
  describe ".normalize" do
    it "accetta lingue supportate" do
      expect(described_class.normalize("en")).to eq(:en)
      expect(described_class.normalize("fr-FR")).to eq(:fr)
      expect(described_class.normalize("de_DE")).to eq(:de)
    end

    it "rifiuta lingue non supportate" do
      expect(described_class.normalize("pt")).to be_nil
      expect(described_class.normalize("")).to be_nil
    end
  end

  describe ".from_accept_language" do
    it "prende la prima lingua supportata" do
      expect(described_class.from_accept_language("fr-FR,fr;q=0.9,en;q=0.8")).to eq(:fr)
      expect(described_class.from_accept_language("pt-BR,en-US;q=0.8")).to eq(:en)
    end
  end
end