Adding user controller test

spec/controllers/users_controller_spec.rb

@@ -0,0 +1,34 @@
+require 'rails_helper'
+
+RSpec.describe UsersController, type: :controller do
+
+  describe "GET #index as admin" do
+
+    before do
+      login_with create( :user, :admin )
+    end
+
+    after do
+      Warden.test_reset!
+    end
+
+    it "responds successfully with an HTTP 200 status code" do
+      get :index
+      expect(response).to be_success
+      expect(response).to have_http_status(200)
+    end
+
+    it "renders the index template" do
+      get :index
+      expect(response).to render_template("index")
+    end
+
+    it "loads all of the users into @users" do
+    	User.where("id != ?",  controller.current_user.id).destroy_all # clear users table
+      user1, user2 = create_pair(:user)
+      get :index
+      expect(assigns(:users)).to match_array([user1, user2, controller.current_user]) # used for login
+    end
+  end # of #index
+
+end