Add specs for AR objects

spec/orms/active_record/active_record_spec.rb

@@ -208,6 +208,16 @@
                           'Can\'t serialize collection - must respond to :each')
       end
     end
+
+    describe 'with serializer defined in a separate class' do
+      subject(:json) { Surrealist.surrealize_collection(Tree.all) }
+      let(:expectation) do
+        [{ name: 'Oak', height: 200, color: 'green' },
+         { name: 'Pine', height: 140, color: 'green' }].to_json
+      end
+
+      it { is_expected.to eq(expectation) }
+    end
   end
 
   describe 'ActiveRecord instance #surrealize' do
@@ -285,5 +295,12 @@
         end
       end
     end
+
+    describe 'with serializer defined in a separate class' do
+      subject(:json) { Tree.find_by(name: 'Oak').surrealize }
+      let(:expectation) { { name: 'Oak', height: 200, color: 'green' }.to_json }
+
+      it { is_expected.to eq(expectation) }
+    end
   end
 end

spec/orms/active_record/models.rb

@@ -89,6 +89,11 @@
     table.column :name, :string
     table.integer :question_id
   end
+
+  create_table :trees do |table|
+    table.column :name, :string
+    table.column :height, :int
+  end
 end
 
 def name_string
@@ -349,9 +354,19 @@ class Answer < ActiveRecord::Base
   json_schema { { name: String, question: Question } }
 end
 
-# def name_string
-#   ('a'..'z').to_a.sample(8).join
-# end
+# Using a separate class
+
+TreeSerializer = Class.new(Surrealist::Serializer) do
+  json_schema { { name: String, height: Integer, color: String } }
+
+  def color; 'green'; end
+end
+
+class Tree < ActiveRecord::Base
+  include Surrealist
+
+  surrealize_with TreeSerializer
+end
 
 2.times { Executive.create(name: name_string) }
 3.times { Manager.create(name: name_string) }
@@ -363,3 +378,6 @@ class Answer < ActiveRecord::Base
 PromKing.create(prom_king_name: name_string, prom_couple_id: PromCouple.first.id)
 5.times { Question.create(name: name_string) }
 10.times { Answer.create(name: name_string, question_id: Question.all.sample.id) }
+
+Tree.create!(name: 'Oak', height: 200)
+Tree.create!(name: 'Pine', height: 140)

spec/serializer_spec.rb

@@ -1,9 +1,7 @@
 # frozen_string_literal: true
 
 class DogeSerializer < Surrealist::Serializer
-  json_schema do
-    { name: String, name_length: Integer }
-  end
+  json_schema { { name: String, name_length: Integer } }
 
   private def name_length
     name.length