Add I18nContent model specs

app/models/i18n_content.rb

@@ -1,7 +1,6 @@
 class I18nContent < ActiveRecord::Base
-
-  scope :by_key, -> (key){ where(key: key) }
-  scope :begins_with_key, -> (key){ where("key ILIKE ?", "#{key}?%") }
+  scope :by_key,          ->(key) { where(key: key) }
+  scope :begins_with_key, ->(key) { where("key ILIKE ?", "#{key}%") }
 
   validates :key, uniqueness: true
 

spec/models/i18n_content_spec.rb

@@ -0,0 +1,76 @@
+require 'rails_helper'
+
+RSpec.describe I18nContent, type: :model do
+  let(:i18n_content) { build(:i18n_content) }
+
+  it 'is valid' do
+    expect(i18n_content).to be_valid
+  end
+
+  it 'is not valid if key is not unique' do
+    new_content = create(:i18n_content)
+
+    expect(i18n_content).not_to be_valid
+    expect(i18n_content.errors.size).to eq(1)
+  end
+
+  context 'Scopes' do
+    it 'return one record when #by_key is used' do
+      content      = create(:i18n_content)
+      key          = 'debates.form.debate_title'
+      debate_title = create(:i18n_content, key: key)
+
+      expect(I18nContent.all.size).to eq(2)
+
+      query = I18nContent.by_key(key)
+
+      expect(query.size).to eq(1)
+      expect(query).to eq([debate_title])
+    end
+
+    it 'return all matching records when #begins_with_key is used' do
+      debate_translation = create(:i18n_content)
+      debate_title       = create(:i18n_content, key: 'debates.form.debate_title')
+      proposal_title     = create(:i18n_content, key: 'proposals.form.proposal_title')
+
+      expect(I18nContent.all.size).to eq(3)
+
+      query = I18nContent.begins_with_key('debates')
+
+      expect(query.size).to eq(2)
+      expect(query).to eq([debate_translation, debate_title])
+      expect(query).not_to include(proposal_title)
+    end
+  end
+
+  context 'Globalize' do
+    it 'translates key into multiple languages' do
+      key = 'devise_views.mailer.confirmation_instructions.welcome'
+      welcome = build(:i18n_content, key: key, value_en: 'Welcome', value_es: 'Bienvenido')
+
+      expect(welcome.value_en).to eq('Welcome')
+      expect(welcome.value_es).to eq('Bienvenido')
+    end
+
+    it 'responds to locales defined on model' do
+      expect(i18n_content).to respond_to(:value_en)
+      expect(i18n_content).to respond_to(:value_es)
+      expect(i18n_content).not_to respond_to(:value_de)
+    end
+
+    it 'returns nil if translations are not available' do
+      expect(i18n_content.value_en).to eq('Text in english')
+      expect(i18n_content.value_es).to eq('Texto en español')
+      expect(i18n_content.value_nl).to be(nil)
+      expect(i18n_content.value_fr).to be(nil)
+    end
+
+    it 'responds accordingly to the current locale' do
+      expect(i18n_content.value).to eq('Text in english')
+
+      Globalize.locale = :es
+
+      expect(i18n_content.value).to eq('Texto en español')
+    end
+  end
+end