アイヌ語追加 (#428) (#433)

Reviewed-on: #433
Co-authored-by: miteruzo <miteruzo@naver.com>

backend/spec/services/certified_tag_name_translations_spec.rb

@@ -0,0 +1,116 @@
+require 'rails_helper'
+require 'tempfile'
+
+RSpec.describe CertifiedTagNameTranslations do
+  let!(:language) { Language.create!(code: 'ain', name: 'ain') }
+  let!(:script) { Script.create!(code: 'Kana', name: 'Kana') }
+  let!(:tag) { create(:tag, primary_name: 'source') }
+  let(:entries) { [{ 'ja' => 'source', 'ain-Kana' => 'レ_ハイタ' }] }
+  let(:document) do
+    { 'format' => described_class::FORMAT,
+      'source_locale' => 'ja', 'target_locale' => 'ain-Kana', 'entries' => entries }
+  end
+  let(:locale) do
+    Locale.new(code: 'ain-Kana', language_code: 'ain', script_code: 'Kana',
+               region_code: 392, variants: '', name: 'Ainu')
+  end
+
+  around do |example|
+    Tempfile.create(['certified-names', '.json']) do |file|
+      @path = file.path
+      example.run
+    end
+  end
+
+  def write_document
+    File.write(@path, JSON.generate(document))
+    locale.certified_tag_names_path = @path
+  end
+
+  it 'registers certified names before automatic names and records their provenance' do
+    other = create(:tag, primary_name: 'レ_ハイタ')
+    write_document
+
+    locale.save!
+
+    expect(tag.reload.tag_name('ain')).to have_attributes(
+        name: 'レ_ハイタ', primary_flg: true, auto_generated: false)
+    expect(other.reload.tag_name('ain')).to have_attributes(
+        name: "Tag_##{ other.id }", auto_generated: true)
+    version = tag.tag_versions.order(:version_no).last
+    expect(version.created_by_user_id).to be_nil
+    expect(version.names.fetch('ain')).to include(
+        'name' => 'レ_ハイタ', 'auto_generated' => false)
+  end
+
+  it 'skips missing sources without rolling back the locale or matching entries' do
+    entries.unshift({ 'ja' => 'missing', 'ain-Kana' => 'unused' })
+    write_document
+
+    locale.save!
+
+    expect(locale).to be_persisted
+    expect(tag.reload.name('ain')).to eq('レ_ハイタ')
+    expect(TagName.exists?(language_code: 'ain', name: 'unused')).to be(false)
+  end
+
+  it 'matches source names exactly rather than using a case-insensitive collation' do
+    entries.first['ja'] = 'SOURCE'
+    write_document
+
+    expect(described_class.load!(@path, locale:)).to eq({})
+  end
+
+  it 'rejects ambiguous primary matches' do
+    write_document
+    relation = instance_double(ActiveRecord::Relation)
+    allow(TagName).to receive(:where).with(
+        language_code: 'ja', primary_flg: true, name: ['source']).and_return(relation)
+    allow(relation).to receive(:pluck).with(:name, :tag_id)
+        .and_return([['source', tag.id], ['source', tag.id + 1]])
+
+    expect { described_class.load!(@path, locale:) }
+        .to raise_error(described_class::Error, /source.*exactly one tag/)
+  end
+
+  it 'rejects duplicate sources and identifies the offending name' do
+    entries.push({ 'ja' => 'source', 'ain-Kana' => 'another' })
+    write_document
+
+    expect { locale.save! }.to raise_error(described_class::Error, /duplicate source.*source/)
+    expect(Locale.exists?(code: 'ain-Kana')).to be(false)
+  end
+
+  it 'rejects duplicate targets even when a source is missing' do
+    entries.push({ 'ja' => 'missing', 'ain-Kana' => 'レ_ハイタ' })
+    write_document
+
+    expect { locale.save! }.to raise_error(described_class::Error, /duplicate target.*レ_ハイタ/)
+    expect(Locale.exists?(code: 'ain-Kana')).to be(false)
+  end
+
+  it 'rolls back names and histories if a later certified name is invalid' do
+    create(:tag, primary_name: 'second')
+    entries.push({ 'ja' => 'second', 'ain-Kana' => 'nico:invalid' })
+    write_document
+    original_versions = TagVersion.order(:id).map(&:attributes)
+
+    expect { locale.save! }.to raise_error(described_class::Error, /nico:invalid/)
+
+    expect(Locale.exists?(code: 'ain-Kana')).to be(false)
+    expect(TagName.where(language_code: 'ain')).to be_empty
+    expect(TagVersion.order(:id).map(&:attributes)).to eq(original_versions)
+  end
+
+  it 'does not add names or versions on repeated completion' do
+    write_document
+    locale.save!
+    original_names = TagName.order(:id).map(&:attributes)
+    original_versions = TagVersion.order(:id).map(&:attributes)
+
+    TagNameCompletion.for_locale!(locale)
+
+    expect(TagName.order(:id).map(&:attributes)).to eq(original_names)
+    expect(TagVersion.order(:id).map(&:attributes)).to eq(original_versions)
+  end
+end

backend/spec/services/post_bulk_creator_spec.rb

@@ -1,7 +1,7 @@
 require 'rails_helper'
 
 RSpec.describe PostBulkCreator do
-  include_context 'English locale'
+  include_context 'Ainu locale'
 
   it 'limits workers to two and keeps failures in their request slots' do
     locale = Locale.nipponese
@@ -67,8 +67,7 @@ RSpec.describe PostBulkCreator do
     expect(results[3].dig(:post, :id)).to eq(4)
   end
 
-  it 'passes a future English locale to preflight and creation in every worker' do
-    pending '日本語以外の Locale 有効化は別課題で実装する'
+  it 'passes a future Ainu locale to preflight and creation in every worker' do
     locale
     actor = instance_double(User, id: 123)
     allow(User).to receive(:find).with(123).and_return(actor)

backend/spec/services/post_create_plan_spec.rb

@@ -11,23 +11,22 @@ RSpec.describe PostCreatePlan do
   end
 
   context 'with an explicit locale' do
-    include_context 'English locale'
+    include_context 'Ainu locale'
 
     it 'resolves the matching language identity and its parents' do
-      pending '日本語以外の Locale 有効化は別課題で実装する'
       locale
-      english_name = create(:tag_name, name: 'shared_name',
-                                      language_code: 'en', script_code: 'Latn')
-      english = create(:tag, primary_tag_name: english_name, category: :character)
+      ainu_name = create(:tag_name, name: 'shared_name',
+                                      language_code: 'ain', script_code: 'Kana')
+      ainu = create(:tag, primary_tag_name: ainu_name, category: :character)
+      primary_tag_name_for(ainu, 'ja').update!(name: 'ainu_in_japanese', auto_generated: false)
       nipponese = create(:tag, primary_name: 'temporary_nipponese', category: :general)
-      # The DB permits this identity; validation has its own contract spec.
-      primary_tag_name_for(nipponese, 'ja').update_columns(name: 'shared_name')
-      english_parent_name = create(:tag_name, name: 'english_parent',
-                                            language_code: 'en', script_code: 'Latn')
-      english_parent = create(:tag, primary_tag_name: english_parent_name,
+      primary_tag_name_for(nipponese, 'ja').update!(name: 'shared_name')
+      ainu_parent_name = create(:tag_name, name: 'ainu_parent',
+                                            language_code: 'ain', script_code: 'Kana')
+      ainu_parent = create(:tag, primary_tag_name: ainu_parent_name,
                                     category: :material)
       nipponese_parent = create(:tag, primary_name: 'nipponese_parent', category: :general)
-      TagImplication.create!(tag: english, parent_tag: english_parent)
+      TagImplication.create!(tag: ainu, parent_tag: ainu_parent)
       TagImplication.create!(tag: nipponese, parent_tag: nipponese_parent)
 
       plan = described_class.new(attributes: { tags: 'shared_name' }).build!(locale)
@@ -35,35 +34,34 @@ RSpec.describe PostCreatePlan do
       expect(plan[:direct_tag_specs]).to eq(
           [{ name: 'shared_name', category: :character }])
       expect(plan[:post_tag_specs]).to include(
-          { name: primary_tag_name_for(english_parent, 'en').name, category: :material })
+          { name: primary_tag_name_for(ainu_parent, 'ain').name, category: :material })
       expect(plan[:post_tag_specs].pluck(:name))
           .not_to include(primary_tag_name_for(nipponese_parent, 'ja').name)
     end
 
     it 'resolves aliases within the requested language' do
-      pending '日本語以外の Locale 有効化は別課題で実装する'
       locale
       nipponese = create(:tag, primary_name: 'nipponese_canonical')
-      english_name = create(:tag_name, name: 'english_canonical',
-                                      language_code: 'en', script_code: 'Latn')
-      english = create(:tag, primary_tag_name: english_name, category: :character)
+      ainu_name = create(:tag_name, name: 'ainu_canonical',
+                                      language_code: 'ain', script_code: 'Kana')
+      ainu = create(:tag, primary_tag_name: ainu_name, category: :character)
       nipponese_alias = create(:tag_name, :alias, name: 'shared_alias',
                                                   tag: nipponese)
-      english_alias = create(:tag_name, :alias, name: 'shared_alias',
-                                               tag: english,
-                                               language_code: 'en', script_code: 'Latn')
+      ainu_alias = create(:tag_name, :alias, name: 'shared_alias',
+                                               tag: ainu,
+                                               language_code: 'ain', script_code: 'Kana')
 
       expect(nipponese_alias.reload).to have_attributes(
           tag_id: nipponese.id,
           primary_flg: false, language_code: 'ja')
-      expect(english_alias.reload).to have_attributes(
-          tag_id: english.id,
-          primary_flg: false, language_code: 'en')
+      expect(ainu_alias.reload).to have_attributes(
+          tag_id: ainu.id,
+          primary_flg: false, language_code: 'ain')
 
       plan = described_class.new(attributes: { tags: 'shared_alias' }).build!(locale)
 
       expect(plan[:direct_tag_specs]).to eq(
-          [{ name: english_name.name, category: :character }])
+          [{ name: ainu_name.name, category: :character }])
     end
   end
 

backend/spec/services/post_creator_spec.rb

@@ -77,11 +77,10 @@ RSpec.describe PostCreator do
   end
 
   context 'with an explicit locale' do
-    include_context 'English locale'
+    include_context 'Ainu locale'
 
     [false, true].each do |planned|
       it "passes locale to tag creation with planned attributes: #{ planned }" do
-        pending '日本語以外の Locale 有効化は別課題で実装する'
         locale
         attributes = {
             title: 'Locale propagation',
@@ -96,9 +95,10 @@ RSpec.describe PostCreator do
         post = described_class.new(actor:, attributes:).create!(locale)
 
         expect(Tag).to have_received(:find_or_create_by_tag_name!)
-            .with(locale, 'locale_character', category: :character).at_least(:once)
-        tag_name = TagName.find_by!(language_code: 'en', name: 'locale_character')
-        expect(tag_name).to have_attributes(script_code: 'Latn', primary_flg: true)
+            .with(locale, 'locale_character', category: :character,
+                  created_by_user: actor).at_least(:once)
+        tag_name = TagName.find_by!(language_code: 'ain', name: 'locale_character')
+        expect(tag_name).to have_attributes(script_code: 'Kana', primary_flg: true)
         expect(post.tags).to include(tag_name.tag)
       end
     end

backend/spec/services/shared_resource_id_allocator_mysql_spec.rb

@@ -141,6 +141,40 @@ RSpec.describe 'Shared resource IDs across MySQL connections', type: :model do
     result(first)
   end
 
+  [false, true].each do |inner_rollback|
+    [false, true].each do |outer_rollback|
+      it "keeps savepoint=#{ inner_rollback } lock through outer rollback=#{ outer_rollback }" do
+        connection = ApplicationRecord.connection
+        database = connection.pool.db_config.database
+        lock_name = "btrc:ids:#{ Digest::SHA256.hexdigest(database)[0, 16] }:tags"
+        quoted_lock = connection.quote(lock_name)
+        owner = connection.select_value('SELECT CONNECTION_ID()').to_i
+
+        connection.transaction do
+          connection.transaction(requires_new: true) do
+            create_resource(:external)
+            raise ActiveRecord::Rollback if inner_rollback
+          end
+
+          expect(connection.select_value("SELECT IS_USED_LOCK(#{ quoted_lock })").to_i)
+              .to eq(owner)
+          contender = worker do |other|
+            other.select_value("SELECT GET_LOCK(#{ quoted_lock }, 0)").to_i
+          end
+          expect(result(contender)).to eq(0)
+
+          SharedResourceIdAllocator.lock_space!(ExternalTag, 'tags')
+          raise ActiveRecord::Rollback if outer_rollback
+        end
+
+        expect(connection.select_value("SELECT IS_FREE_LOCK(#{ quoted_lock })").to_i)
+            .to eq(1)
+        expect(ExternalTag.exists?(name: "#{ @prefix }_external"))
+            .to eq(!inner_rollback && !outer_rollback)
+      end
+    end
+  end
+
   it 'raises on a real lock acquisition failure without inserting a record' do
     first, (_id, _connection_id, lock_name) = hold_creation(:external, rollback: true)
     stub_const('SharedResourceIdAllocator::LOCK_TIMEOUT', 0)

backend/spec/services/shared_resource_id_allocator_spec.rb

@@ -101,7 +101,7 @@ RSpec.describe SharedResourceIdAllocator, 'lock lifecycle' do
   let(:record) { build(:external_tag) }
   let(:connection) { double('connection') }
   let(:transaction) { double('transaction', open?: true) }
-  let(:callbacks) { { } }
+  let(:callbacks) { [] }
   let(:sql) { [] }
 
   before do
@@ -128,19 +128,24 @@ RSpec.describe SharedResourceIdAllocator, 'lock lifecycle' do
       end
     end
     allow(ExternalTag).to receive(:connection).and_return(connection)
-    allow(ExternalTag).to receive(:current_transaction).and_return(transaction)
+    allow(connection).to receive(:current_transaction).and_return(transaction)
+    allow(connection).to receive(:add_transaction_record) { callbacks << _1 }
+    allow(connection).to receive(:disconnect!)
     allow(ExternalTag).to receive(:uncached).and_yield
-    [:after_commit, :after_rollback].each do |event|
-      allow(transaction).to receive(event) { |&callback| callbacks[event] = callback }
-    end
   end
 
-  [:after_commit, :after_rollback].each do |event|
+  def finish_transaction event
+    allow(transaction).to receive(:open?).and_return(false)
+    callbacks.shift.public_send(event)
+    allow(transaction).to receive(:open?).and_return(true)
+  end
+
+  [:committed!, :rolledback!].each do |event|
     it "holds the shared lock until #{ event }" do
       described_class.assign!(record)
       expect(record.id).to eq(9)
       expect(sql.grep(/RELEASE_LOCK/)).to be_empty
-      callbacks.fetch(event).call
+      finish_transaction(event)
       expect(sql.grep(/RELEASE_LOCK/).size).to eq(1)
     end
   end
@@ -155,7 +160,7 @@ RSpec.describe SharedResourceIdAllocator, 'lock lifecycle' do
   it 'releases a successfully acquired lock when allocation fails and rolls back' do
     allow(connection).to receive(:select_all).and_raise('query failed')
     expect { described_class.assign!(record) }.to raise_error(RuntimeError, 'query failed')
-    callbacks.fetch(:after_rollback).call
+    finish_transaction(:rolledback!)
     expect(sql.grep(/RELEASE_LOCK/).size).to eq(1)
   end
 
@@ -164,18 +169,17 @@ RSpec.describe SharedResourceIdAllocator, 'lock lifecycle' do
     described_class.assign!(record)
     expect(record.id).to eq(50)
     expect(sql.grep(/FOR UPDATE/)).to be_empty
-    callbacks.fetch(:after_commit).call
+    finish_transaction(:committed!)
   end
 
   it 'uses the same named lock within each space and different locks between spaces' do
     locks = [Tag, ExternalTag, TagDescription, TagGroup, TagDescriptionVersion, TagGroupVersion].map do |model|
       allow(model).to receive(:connection).and_return(connection)
-      allow(model).to receive(:current_transaction).and_return(transaction)
       allow(model).to receive(:uncached).and_yield
       record = model.new(id: 50)
       described_class.assign!(record)
       statement = sql.grep(/GET_LOCK/).last
-      callbacks.fetch(:after_commit).call
+      finish_transaction(:committed!)
       statement
     end
     expect(locks[0]).to eq(locks[1])
@@ -187,7 +191,21 @@ RSpec.describe SharedResourceIdAllocator, 'lock lifecycle' do
   it 'reports lock release failures' do
     described_class.assign!(record)
     allow(connection).to receive(:select_value).with(/RELEASE_LOCK/).and_return(nil)
-    expect { callbacks.fetch(:after_commit).call }
+    expect { finish_transaction(:committed!) }
         .to raise_error(ActiveRecord::ActiveRecordError, /lock release failed/)
+    expect(connection).to have_received(:disconnect!)
+  end
+
+  it 'keeps the lock and transfers cleanup when a savepoint rolls back' do
+    described_class.assign!(record)
+    callbacks.shift.rolledback!
+
+    expect(callbacks.size).to eq(1)
+    expect(sql.grep(/RELEASE_LOCK/)).to be_empty
+    described_class.assign!(record)
+    expect(sql.grep(/GET_LOCK/).size).to eq(1)
+
+    finish_transaction(:committed!)
+    expect(sql.grep(/RELEASE_LOCK/).size).to eq(1)
   end
 end

backend/spec/services/tag_name_completion_spec.rb

@@ -0,0 +1,127 @@
+require 'rails_helper'
+
+RSpec.describe TagNameCompletion do
+  let(:author) { create(:user, :member) }
+  let!(:language) { Language.create!(code: 'ain', name: 'ain') }
+  let!(:script) { Script.create!(code: 'Kana', name: 'Kana') }
+  let(:locale) do
+    Locale.create!(code: 'ain-Kana', language_code: 'ain', script_code: 'Kana',
+                   region_code: 392, variants: '', name: 'ain-Kana')
+  end
+
+  it 'generates a phonetic primary with the required identity and provenance' do
+    tag = create(:tag, primary_name: '漢字あカ')
+
+    locale
+
+    expect(tag.reload.tag_name('ain')).to have_attributes(
+        name: 'カンチ_ア_カ', language_code: 'ain', script_code: 'Kana',
+        primary_flg: true, auto_generated: true, tag_id: tag.id)
+  end
+
+  it 'uses the exact fallback when the input cannot be converted' do
+    tag = create(:tag, primary_name: '😀')
+
+    locale
+
+    expect(tag.reload.name('ain')).to eq("Tag_##{ tag.id }")
+  end
+
+  it 'uses the exact fallback when a generated name collides with a human name' do
+    other = create(:tag, primary_name: 'other')
+    create(:tag_name, tag: other, name: 'AbC', language_code: 'ain', script_code: 'Kana')
+    tag = create(:tag, primary_name: 'AbC')
+
+    locale
+
+    expect(tag.reload.name('ain')).to eq("Tag_##{ tag.id }")
+    expect(other.reload.name('ain')).to eq('AbC')
+  end
+
+  it 'uses the exact fallback for a transcription that fails name validation' do
+    tag = create(:tag, primary_name: 'base')
+    source = TagName.new(name: 'nico:invalid', language_code: 'ja')
+
+    expect(TagName.generate_name(locale, tag, source)).to eq("Tag_##{ tag.id }")
+  end
+
+  it 'preserves human confirmation and is idempotent across repeated completion' do
+    locale
+    tag = Tag.find_or_create_by_tag_name!(Locale.nipponese, 'あいぬ', category: :general)
+    primary = tag.tag_name('ain')
+    primary.update!(name: 'human_confirmed', auto_generated: false)
+    snapshot = tag.tag_names.order(:id).map(&:attributes)
+
+    2.times { described_class.for_tag!(tag) }
+
+    expect(tag.tag_names.order(:id).map(&:attributes)).to eq(snapshot)
+  end
+
+  it 'creates one primary per active language through the production creation path' do
+    locale
+
+    tag = Tag.find_or_create_by_tag_name!(Locale.nipponese, 'アイヌ', category: :general)
+
+    expect(tag.tag_names.where(primary_flg: true).pluck(:language_code, :name))
+        .to contain_exactly(['ja', 'アイヌ'], ['ain', 'アイヌ'])
+    expect(Tag.find_or_create_by_tag_name!(locale, 'アイヌ', category: :general)).to eq(tag)
+  end
+
+  ['ja', 'ain'].each do |language|
+    it "records one authored create with all names for a #{ language } origin" do
+      ainu_locale = locale
+      origin = language == 'ja' ? Locale.nipponese : ainu_locale
+      tag = nil
+
+      expect {
+        tag = Tag.find_or_create_by_tag_name!(origin, 'アイヌ', category: :general,
+                                             created_by_user: author)
+      }.to change(TagVersion, :count).by(1)
+
+      version = tag.tag_versions.sole
+      expect(version).to have_attributes(
+          event_type: 'create', version_no: 1, created_by_user_id: author.id)
+      expect(tag.reload.version_no).to eq(1)
+      expect(version.names).to eq(
+          'ja' => { 'name' => 'アイヌ', 'script_code' => 'Jpan',
+                    'auto_generated' => language != 'ja', 'aliases' => [] },
+          'ain' => { 'name' => 'アイヌ', 'script_code' => 'Kana',
+                     'auto_generated' => language != 'ain', 'aliases' => [] })
+
+      expect {
+        described_class.for_tag!(tag, created_by_user: author)
+        found = Tag.find_or_create_by_tag_name!(origin, 'アイヌ', category: :general,
+                                               created_by_user: author)
+        expect(found).to eq(tag)
+        TagVersioning.record_tag_snapshot!(tag, created_by_user: author)
+      }.not_to change(TagVersion, :count)
+      expect(version.reload.created_by_user_id).to eq(author.id)
+    end
+  end
+
+  it 'records the author even when no additional language needs completion' do
+    tag = build(:tag, primary_name: 'single_language_creation')
+
+    described_class.for_tag!(tag, created_by_user: author)
+
+    expect(tag).to be_persisted
+    expect(tag.tag_versions.sole).to have_attributes(
+        event_type: 'create', version_no: 1, created_by_user_id: author.id)
+    expect(tag.tag_versions.sole.names.keys).to eq(['ja'])
+  end
+
+  it 'rolls back a new tag and all names when its create history fails' do
+    locale
+    author
+    before_counts = [Tag.count, TagName.count, TagVersion.count]
+    allow(TagVersioning).to receive(:record!).and_raise('history failed')
+
+    expect {
+      Tag.find_or_create_by_tag_name!(Locale.nipponese, 'atomic_new_history',
+                                     category: :general, created_by_user: author)
+    }.to raise_error('history failed')
+
+    expect([Tag.count, TagName.count, TagVersion.count]).to eq(before_counts)
+    expect(TagName.where(name: 'atomic_new_history')).to be_empty
+  end
+end

backend/spec/services/tag_name_transcription_spec.rb

@@ -0,0 +1,37 @@
+require 'rails_helper'
+
+RSpec.describe TagNameTranscription do
+  {
+      'AbCdXYZ' => 'AbCdXYZ',
+      'あいぬ' => 'アイヌ',
+      'アイヌ' => 'アイヌ',
+      '日本語' => 'ニチホンコ',
+      '漢字' => 'カンチ',
+      '漢あカ' => 'カン_ア_カ',
+      '漢字あいうカナ' => 'カンチ_アイウ_カナ',
+      'Ab漢あカZ' => 'Abカン_ア_カZ',
+      'りゃリュリョ' => 'リヤ_リユリヨ',
+      'キャット' => 'キヤット',
+      'コーヒー' => 'コヒ',
+      'コウコオケイケエカア' => 'コウコオケイケエカア',
+      'ガギグゲゴダヂヅデド' => 'カキクケコタチチュテト',
+      'バビブベボパピプペポ' => 'パピプペポパピプペポ',
+      'ザジズゼゾ' => 'チャチチュチェチョ',
+      'ジャジュジョ' => 'チャチュチョ',
+      'アㇰアㇱアッアンアㇺアㇷ゚' => 'アㇰアㇱアッアンアㇺアㇷ゚',
+      'アㇻイㇼウㇽエㇾオㇿ' => 'アㇻイㇼウㇽエㇾオㇿ',
+      '漢Aあ' => 'カンAア' }.each do |source, expected|
+    it "transcribes #{ source } as #{ expected }" do
+      expect(described_class.ainu(source)).to eq(expected)
+    end
+  end
+
+  { '😀' => '', 'ヴ' => '', 'ティ' => 'テ', 'ㇵ' => '',
+    '魑' => '', '𠮷' => '', 'ー' => '', '々' => '',
+    'ア😀😀イ' => 'ア_イ', '😀アイ😀' => 'アイ',
+    '_😀_' => '__', 'ア_😀_イ' => 'ア___イ', '漢魑字' => 'カン_チ' }.each do |source, expected|
+    it "preserves convertible portions of #{ source }" do
+      expect(described_class.ainu(source)).to eq(expected)
+    end
+  end
+end

backend/spec/services/tag_version_recorder_spec.rb

@@ -1,7 +1,7 @@
 require 'rails_helper'
 
 RSpec.describe TagVersionRecorder do
-  include_context 'English locale'
+  include_context 'Ainu locale'
 
   let(:user) { create_member_user! }
   let!(:tag) { create(:tag, primary_name: '日本語名') }
@@ -17,11 +17,11 @@ RSpec.describe TagVersionRecorder do
                     { 'name' => 'alias_z', 'script_code' => 'Jpan' }] }
   end
 
-  def prepare_english_names!
+  def prepare_ainu_names!
     locale
-    primary_tag_name_for(tag, 'en').update!(name: 'English name', auto_generated: false)
-    create(:tag_name, :alias, tag:, language_code: 'en', script_code: 'Latn',
-                              name: 'English alias')
+    primary_tag_name_for(tag, 'ain').update!(name: 'Ainu name', auto_generated: false)
+    create(:tag_name, :alias, tag:, language_code: 'ain', script_code: 'Kana',
+                              name: 'Ainu alias')
   end
 
   it 'snapshots the Nipponese primary and sorted aliases in grouped names' do
@@ -62,40 +62,37 @@ RSpec.describe TagVersionRecorder do
   end
 
   it 'snapshots future languages together without a request locale argument' do
-    pending '日本語以外の Locale 有効化は別課題で実装する'
-    prepare_english_names!
+    prepare_ainu_names!
 
-    version = described_class.record!(tag:, event_type: :create, created_by_user: user)
+    version = described_class.record!(tag:, event_type: :update, created_by_user: user)
 
     expect(version.names).to eq(
         'ja' => nipponese_snapshot,
-        'en' => { 'name' => 'English name', 'script_code' => 'Latn',
+        'ain' => { 'name' => 'Ainu name', 'script_code' => 'Kana',
                   'auto_generated' => false,
-                  'aliases' => [{ 'name' => 'English alias', 'script_code' => 'Latn' }] })
+                  'aliases' => [{ 'name' => 'Ainu alias', 'script_code' => 'Kana' }] })
   end
 
-  it 'creates a version for an English-only change and preserves prior names' do
-    pending '日本語以外の Locale 有効化は別課題で実装する'
-    prepare_english_names!
-    original = described_class.record!(tag:, event_type: :create, created_by_user: user)
-    primary_tag_name_for(tag, 'en').update!(name: 'Renamed')
+  it 'creates a version for an Ainu-only change and preserves prior names' do
+    prepare_ainu_names!
+    original = described_class.record!(tag:, event_type: :update, created_by_user: user)
+    primary_tag_name_for(tag, 'ain').update!(name: 'Renamed')
 
     updated = described_class.record!(tag:, event_type: :update, created_by_user: user)
 
-    expect(updated.version_no).to eq(2)
-    expect(original.reload.names.fetch('en')).to include('name' => 'English name')
-    expect(updated.names.fetch('en')).to include('name' => 'Renamed')
+    expect(updated.version_no).to eq(original.version_no + 1)
+    expect(original.reload.names.fetch('ain')).to include('name' => 'Ainu name')
+    expect(updated.names.fetch('ain')).to include('name' => 'Renamed')
     expect(updated.names.fetch('ja')).to eq(nipponese_snapshot)
   end
 
   it 'does not create a version for an unchanged multilingual snapshot' do
-    pending '日本語以外の Locale 有効化は別課題で実装する'
-    prepare_english_names!
-    described_class.record!(tag:, event_type: :create, created_by_user: user)
+    prepare_ainu_names!
+    original = described_class.record!(tag:, event_type: :update, created_by_user: user)
 
     unchanged = described_class.record!(tag:, event_type: :update, created_by_user: user)
 
-    expect(unchanged.version_no).to eq(1)
-    expect(tag.reload.tag_versions.count).to eq(1)
+    expect(unchanged.version_no).to eq(original.version_no)
+    expect(tag.reload.tag_versions.count).to eq(original.version_no)
   end
 end