# encoding: utf-8
require 'spec_helper'
require 'fedux_org_stdlib/shell_language_detector'

RSpec.describe ShellLanguageDetector do
  context '#detect' do
    it 'returns language' do
      environment = instance_double('FeduxOrgStdlib::ProcessEnvironment')
      allow(environment).to receive(:fetch).and_return 'de_DE.UTF-8'

      detector = ShellLanguageDetector.new environment: environment
      language = detector.detect

      expect(language.language_code).to eq :de
      expect(language.country_code).to eq :de
    end

    it 'returns language if is allowed' do
      environment = instance_double('FeduxOrgStdlib::ProcessEnvironment')
      allow(environment).to receive(:fetch).and_return 'en_GB.UTF-8'

      detector = ShellLanguageDetector.new environment: environment, default_country_code: :de, default_language_code: :de
      language = detector.detect allowed: :en

      expect(language.language_code).to eq :en
      expect(language.country_code).to eq :gb
    end

    it 'returns default language if is not allowed' do
      environment = instance_double('FeduxOrgStdlib::ProcessEnvironment')
      allow(environment).to receive(:fetch).and_return 'en_GB.UTF-8'

      detector = ShellLanguageDetector.new environment: environment, default_country_code: :de, default_language_code: :de
      language = detector.detect allowed: :de

      expect(language.language_code).to eq :de
      expect(language.country_code).to eq :de
    end

    it 'returns default language if is not allowed for multiple languages' do
      environment = instance_double('FeduxOrgStdlib::ProcessEnvironment')
      allow(environment).to receive(:fetch).and_return 'en_GB.UTF-8'

      detector = ShellLanguageDetector.new environment: environment, default_country_code: :de, default_language_code: :de
      language = detector.detect allowed: [:de, :nl]

      expect(language.language_code).to eq :de
      expect(language.country_code).to eq :de
    end

    it 'overwrite detected language' do
      environment = instance_double('FeduxOrgStdlib::ProcessEnvironment')
      allow(environment).to receive(:fetch).and_return 'en_GB.UTF-8'

      detector = ShellLanguageDetector.new environment: environment, default_country_code: :de, default_language_code: :de
      language = detector.detect allowed: [:de, :nl], overwrite: [:nl, :aw, :utf_8]

      expect(language.language_code).to eq :nl
      expect(language.country_code).to eq :aw
      expect(language.encoding).to eq :utf_8
    end
  end
end