add GameNight validations, fix user factory

app/models/game_night.rb

@@ -1,2 +1,4 @@
 class GameNight < ActiveRecord::Base
+  validates :time, presence: true
+  validates :location_name, presence: true
 end

spec/factories/user.rb

@@ -6,6 +6,7 @@
     city Faker::Address.city
     state Faker::Address.state
     country Faker::Address.country
+    password "helloworld"
     email_confirmed true
   end
 

spec/models/game_night_spec.rb

@@ -27,8 +27,8 @@
   end
 
   describe "associations" do
-    let(:user1)      { create(:user) }
-    let(:user2)      { create(:user) }
+    let(:user1)      { create(:confirmed_user) }
+    let(:user2)      { create(:confirmed_user) }
     let(:group)      { create(:group) }
     let(:game_night) { create(:game_night, group_id: group.id) }