#55

backend/spec/models/language_spec.rb

@@ -1,8 +1,15 @@
 require 'rails_helper'
 
 RSpec.describe Language, type: :model do
-  it 'accepts supported language codes' do
-    expect(described_class.new(code: 'en', name: 'English')).to be_valid
+  it 'accepts Nipponese as the current supported language' do
+    expect(described_class.find('ja')).to be_valid
+    expect(described_class.where(deprecated_at: nil).pluck(:code)).to eq(['ja'])
+  end
+
+  it 'accepts English when multilingual support is enabled' do
+    pending '日本語以外の Language 有効化は別課題で実装する'
+    expect { described_class.create!(code: 'en', name: 'English') }
+        .to change(described_class, :count).by(1)
   end
 
   it 'rejects an unsupported language code' do
@@ -13,11 +20,13 @@ RSpec.describe Language, type: :model do
     }
   end
 
-  it 'does not treat French as a supported language' do
-    expect {
-      described_class.create!(code: 'fr', name: 'French')
-    }.to raise_error { |error|
-      expect(error).to be_a(ArgumentError).or be_a(ActiveRecord::RecordInvalid)
-    }
+  ['en', 'fr'].each do |code|
+    it "does not register #{ code } as a currently supported language" do
+      expect {
+        described_class.create!(code:, name: 'Unsupported')
+      }.to raise_error { |error|
+        expect(error).to be_a(ArgumentError).or be_a(ActiveRecord::RecordInvalid)
+      }
+    end
   end
 end