Add dictionary controller specs and factories

spec/controllers/dictionary_spec.rb

@@ -0,0 +1,22 @@
+require 'rails_helper'
+
+RSpec.describe DictionaryController, type: :controller do
+  describe "GET :index" do
+    it 'renders the index template' do
+      get :index
+      expect(response).to render_template(:index)
+    end
+    
+    it 'sets @parts_of_speech instance variable' do
+      get :index
+      FactoryBot.create(:part_of_speech)
+      expect(assigns(:parts_of_speech)).to be_a(ActiveRecord::Relation)
+    end
+
+    it 'sets @words instance variable' do
+      get :index
+      FactoryBot.create(:word)
+      expect(assigns(:words)).to be_a(ActiveRecord::Relation)
+    end
+  end
+end