Rescue RangeError and return RecordNotFound instead

Author: aud

lib/identity_cache/configuration_dsl.rb

@@ -53,6 +53,9 @@ def cache_index(*fields)
             def fetch_by_#{field_list}(#{arg_list}, options={})
               id = fetch_id_by_#{field_list}(#{arg_list})
               id && fetch_by_id(id, options)
+
+            rescue RangeError
+              raise ActiveRecord::RecordNotFound
             end
 
             # exception throwing variant

test/index_cache_test.rb

@@ -153,6 +153,13 @@ def test_unique_cache_index_with_non_id_primary_key
     assert_equal 123, KeyedRecord.fetch_by_value('a').id
   end
 
+  def test_cache_index_raises_when_range_error
+    Item.cache_index :title, :id, unique: true
+    assert_raises(ActiveRecord::RecordNotFound) do
+      assert_equal @record.id, Item.fetch_by_title_and_id!("title", "1111111111111111111111111111111")
+    end
+  end
+
   private
 
   def cache_key(unique: false)