Gab Social. All are welcome.

spec/controllers/concerns/localized_spec.rb

@@ -0,0 +1,68 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+describe ApplicationController, type: :controller do
+  controller do
+    include Localized
+
+    def success
+      head 200
+    end
+  end
+
+  around do |example|
+    current_locale = I18n.locale
+    example.run
+    I18n.locale = current_locale
+  end
+
+  before do
+    routes.draw { get 'success' => 'anonymous#success' }
+  end
+
+  shared_examples 'default locale' do
+    it 'sets available and preferred language' do
+      request.headers['Accept-Language'] = 'ca-ES, fa'
+      get 'success'
+      expect(I18n.locale).to eq :fa
+    end
+
+    it 'sets available and compatible language if none of available languages are preferred' do
+      request.headers['Accept-Language'] = 'fa-IR'
+      get 'success'
+      expect(I18n.locale).to eq :fa
+    end
+
+    it 'sets default locale if none of available languages are compatible' do
+      request.headers['Accept-Language'] = ''
+      get 'success'
+      expect(I18n.locale).to eq :en
+    end
+  end
+
+  context 'user with valid locale has signed in' do
+    it "sets user's locale" do
+      user = Fabricate(:user, locale: :ca)
+
+      sign_in(user)
+      get 'success'
+
+      expect(I18n.locale).to eq :ca
+    end
+  end
+
+  context 'user with invalid locale has signed in' do
+    before do
+      user = Fabricate.build(:user, locale: :invalid)
+      user.save!(validate: false)
+      sign_in(user)
+    end
+
+    include_examples 'default locale'
+  end
+
+  context 'user has not signed in' do
+    include_examples 'default locale'
+  end
+end