require 'rails_helper'

RSpec.describe Language, type: :model do
  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
    expect {
      described_class.create!(code: 'xx', name: 'Unsupported')
    }.to raise_error { |error|
      expect(error).to be_a(ArgumentError).or be_a(ActiveRecord::RecordInvalid)
    }
  end

  ['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