Test: Added locale files test

lib/locales/cs.yml

@@ -1,4 +1,4 @@
-# :czech pluralization (see https://github.com/ddnexus/pagy/blob/master/lib/pagy/i18n.rb)
+# :west_slavic pluralization (see https://github.com/ddnexus/pagy/blob/master/lib/pagy/i18n.rb)
 
 cs:
  pagy:

lib/locales/sw.yml

@@ -1,4 +1,4 @@
-# :one_other pluralization
+# :one_other pluralization (see https://github.com/ddnexus/pagy/blob/master/lib/pagy/i18n.rb)
 
 sw:
  pagy:

lib/locales/vi.yml

@@ -1,4 +1,4 @@
-# :other pluralization (see https://github.com/ddnexus/pagy/blob/master/lib/locales/utils/p11n.rb)
+# :other pluralization (see https://github.com/ddnexus/pagy/blob/master/lib/pagy/i18n.rb)
 
 vi:
  pagy:

test/pagy/i18n_locales_test.rb

@@ -0,0 +1,49 @@
+# frozen_string_literal: true
+
+require_relative '../test_helper'
+
+describe 'pagy/locales' do
+ let(:rules) { Pagy::I18n::P11n::RULE.keys }
+ let(:counts) do
+ {
+ arabic: %w[zero one two few many other],
+ east_slavic: %w[one few many other],
+ one_other: %w[one other],
+ one_two_other: %w[one two other],
+ one_upto_two_other: %w[one other],
+ other: %w[other],
+ polish: %w[one few many other],
+ west_slavic: %w[one few other]
+ }
+ end
+
+ # locale files loop
+ Pagy.root.join('locales').each_child do |f|
+ next unless f.extname == '.yml'
+
+ message = "locale file #{f}"
+ locale = f.basename.to_s[0..-5]
+ comment = f.readlines.first.to_s.strip
+ rule = comment.to_s.split[1][1..-1].to_s.to_sym
+
+ it 'includes a comment with the pluralization rule and the i18n.rb reference' do
+ _(rules).must_include rule, message
+ _(comment).must_match 'https://github.com/ddnexus/pagy/blob/master/lib/pagy/i18n.rb', message
+ end
+ it 'defines and matches the locale pluralization rule' do
+ _(Pagy::I18n::P11n::LOCALE[locale]).must_equal Pagy::I18n::P11n::RULE[rule], message
+ end
+ it 'pluralizes item_name according to the rule' do
+ hash = YAML.safe_load(f.read)
+ item_name = hash[locale]['pagy']['item_name']
+ case item_name
+ when String
+ _(rule).must_equal :other
+ when Hash
+ _(item_name.keys - counts[rule]).must_be_empty
+ else
+ raise StandardError, "item_name must be Hash or String"
+ end
+ end
+ end
+end