backend_test.rb

# encoding: utf-8

require 'test_helper'

# apparently Ruby 1.9.1p129 has encoding problems with the gettext po parser
unless RUBY_VERSION == '1.9.1' && RUBY_PATCHLEVEL <= 129

  class I18nGettextBackendTest < Test::Unit::TestCase
    include I18n::Gettext::Helpers

    class Backend < I18n::Backend::Simple
      include I18n::Backend::Gettext
    end

    def setup
      I18n.backend = Backend.new
      I18n.locale = :en
      I18n.load_path = ["#{locales_dir}/de.po"]
      @old_separator, I18n.default_separator = I18n.default_separator, '|'
    end

    def teardown
      I18n.load_path = nil
      I18n.backend = nil
      I18n.default_separator = @old_separator
    end

    def test_backend_loads_po_file
      I18n.backend.send(:init_translations)
      assert I18n.backend.send(:translations)[:de][:"Axis"]
    end

    def test_looks_up_a_translation
      I18n.locale = :de
      assert_equal 'Auto', gettext('car')
    end

    def test_uses_default_translation
      assert_equal 'car', gettext('car')
    end

    def test_looks_up_a_namespaced_translation
      I18n.locale = :de
      assert_equal 'Räderzahl', sgettext('Car|Wheels count')
      assert_equal 'Räderzahl', pgettext('Car', 'Wheels count')
      assert_equal 'Räderzahl!', pgettext('New car', 'Wheels count')
    end

    def test_uses_namespaced_default_translation
      assert_equal 'Wheels count', sgettext('Car|Wheels count')
      assert_equal 'Wheels count', pgettext('Car', 'Wheels count')
      assert_equal 'Wheels count', pgettext('New car', 'Wheels count')
    end

    def test_pluralizes_entry
      I18n.locale = :de
      assert_equal 'Achse', ngettext('Axis', 'Axis', 1)
      assert_equal 'Achsen', ngettext('Axis', 'Axis', 2)
    end

    def test_pluralizes_default_entry
      assert_equal 'Axis', ngettext('Axis', 'Axis', 1)
      assert_equal 'Axis', ngettext('Axis', 'Axis', 2)
    end

    def test_pluralizes_namespaced_entry
      I18n.locale = :de
      assert_equal 'Rad',   nsgettext('Car|wheel', 'wheels', 1)
      assert_equal 'Räder', nsgettext('Car|wheel', 'wheels', 2)
      assert_equal 'Rad',   npgettext('Car', 'wheel', 'wheels', 1)
      assert_equal 'Räder', npgettext('Car', 'wheel', 'wheels', 2)
      assert_equal 'Rad!', npgettext('New car', 'wheel', 'wheels', 1)
      assert_equal 'Räder!', npgettext('New car', 'wheel', 'wheels', 2)
    end

    def test_pluralizes_namespaced_default_entry
      assert_equal 'wheel',  nsgettext('Car|wheel', 'wheels', 1)
      assert_equal 'wheels', nsgettext('Car|wheel', 'wheels', 2)
      assert_equal 'wheel',  npgettext('Car', 'wheel', 'wheels', 1)
      assert_equal 'wheels', npgettext('Car', 'wheel', 'wheels', 2)
      assert_equal 'wheel', npgettext('New car', 'wheel', 'wheels', 1)
      assert_equal 'wheels', npgettext('New car', 'wheel', 'wheels', 2)
    end

    def test_pluralizes_namespaced_entry_with_alternative_syntax
      I18n.locale = :de
      assert_equal 'Rad',   nsgettext(['Car|wheel', 'wheels'], 1)
      assert_equal 'Räder', nsgettext(['Car|wheel', 'wheels'], 2)
      assert_equal 'Rad',   npgettext('Car', ['wheel', 'wheels'], 1)
      assert_equal 'Räder', npgettext('Car', ['wheel', 'wheels'], 2)
      assert_equal 'Rad!', npgettext('New car', ['wheel', 'wheels'], 1)
      assert_equal 'Räder!', npgettext('New car', ['wheel', 'wheels'], 2)
    end

    def test_ngettextpluralizes_entry_with_dots
      I18n.locale = :de
      assert_equal 'Auf 1 Achse.', n_("On %{count} wheel.", "On %{count} wheels.", 1)
      assert_equal 'Auf 2 Achsen.', n_("On %{count} wheel.", "On %{count} wheels.", 2)
    end
  end
end