test case to update user profile

users_admin_controller_spec.rb

 describe 'Update user profile' do
    describe 'Update profile of admin' do
      it "it updates first_name and password" do
        request.accept = "application/json"
        post 'create' , @userinfo.merge!(role_name: 'Project manager')
        @userinfo = {first_name: 'Sabri', last_name: 'Abarkan', user_id: User.last.id  }
        put 'update', @userinfo
       # @user.reload
        result =  JSON.parse(response.body)
        expect(@userinfo['']).to eq earlier_password
        expect(@user.first_name) == 'Robert'
      end
    end
  end

Failure/Error: put 'update', @userinfo
ActionController::UrlGenerationError:
No route matches {:first_name=>"Sabri", :last_name=>"Abarkan", :user_id=>"707", :controller=>"users_admin", :action=>"update"}
# ./spec/controllers/users_admin_controller_spec.rb:110:in `block (4 levels) in <top (required)>'