Some tests for users controller, and fixed users#index

spec/controllers/admin/users_controller_spec.rb

@@ -0,0 +1,34 @@
+require 'spec_helper'
+
+describe Admin::UsersController do
+  shared_examples 'access as administration' do
+  	describe "GET '#index'" do
+      it 'populates an array of users' do
+        user1,user2 = create(:user,email:"gopesh.7500@gmail.com"),create(:user,email:"gopesh@gmail.com")
+        get :index
+        expect(assigns(:users)).to match_array([user1,user2])
+      end
+      
+      it 'renders index template' do
+        get :index
+        expect(response).to render_template :index
+      end
+    end
+
+    describe "PATCH '#update'" do
+      it 'locates the user' do
+        patch :update, id: @user.id, :user => {email:@user.email}
+        expect(assigns(:user)).to eq(@user)
+      end
+    end
+
+    describe 'admin access' do
+      before(:each) do
+        @user = create(:user)
+        @admin = create(:admin)
+        sign_in(@admin)
+      end
+      it_behaves_like 'access as administration'
+    end
+  end
+end