ActiveModel missing in Arel when testing. Just load it

Author: enebo

lib/arjdbc/postgresql/adapter.rb

@@ -21,6 +21,7 @@
 require 'arjdbc/postgresql/base/array_decoder'
 require 'arjdbc/postgresql/base/array_encoder'
 require 'arjdbc/postgresql/name'
+require 'active_model'
 
 module ArJdbc
   # Strives to provide Rails built-in PostgreSQL adapter (API) compatibility.