Move acts_as_tenant declaration after other associations.

The tests were failing, and they should have been passing.
Now watch this: move the acts_as_tenant declaration after the other
associations declarations. The tests now pass.

See ErwinM/acts_as_tenant#255.

app/models/person.rb

@@ -1,4 +1,4 @@
 class Person < ApplicationRecord
-  acts_as_tenant(:account)
   belongs_to :room
+  acts_as_tenant(:account)
 end

app/models/room.rb

@@ -1,4 +1,4 @@
 class Room < ApplicationRecord
-  acts_as_tenant(:account)
   has_many :people
+  acts_as_tenant(:account)
 end

test/models/account_test.rb

@@ -10,7 +10,7 @@ class AccountTest < ActiveSupport::TestCase
     room1 = Room.create!(name: "Account 1 room")
     person = room1.people.create!(name: 'Account 1 person')
     person.room = room2
-    refute person.valid? # This should pass, but it fails!
-    refute person.update(room_id: room2.id) # This should pass, but it fails!
+    refute person.valid? # This now passes, and it should.
+    refute person.update(room_id: room2.id) # This now passes, and it should.
   end
 end

test/models/person_test.rb

@@ -15,9 +15,9 @@ class PersonTest < ActiveSupport::TestCase
       refute person.account == second_room.account
       person.room = second_room # person's account is not the same as second_room's account
 
-      refute person.valid? # This should pass, but it fails.
-      refute person.save # This should pass, but it fails.
-      assert_raises(ActiveRecord::RecordInvalid) { person.save! } # This should pass, but it fails.
+      refute person.valid? # This now passes, and it should.
+      refute person.save # This now passes, and it should.
+      assert_raises(ActiveRecord::RecordInvalid) { person.save! } # This now passes, and it should.
     end
   end
 end