Merge pull request #16517 from sgrif/sg-comparable-attributes

Implement `==` on `Type::Value` and `Attribute`

2 files changed, 14 insertions, 0 deletions

diff --git a/activerecord/lib/active_record/attribute.rb b/activerecord/lib/active_record/attribute.rb
index 6d38224830..15cbbcff68 100644
--- a/activerecord/lib/active_record/attribute.rb
+++ b/activerecord/lib/active_record/attribute.rb
@@ -62,6 +62,13 @@ module ActiveRecord
       true
     end
 
+    def ==(other)
+      self.class == other.class &&
+        name == other.name &&
+        value_before_type_cast == other.value_before_type_cast &&
+        type == other.type
+    end
+
     protected
 
     def initialize_dup(other)
diff --git a/activerecord/lib/active_record/type/value.rb b/activerecord/lib/active_record/type/value.rb
index 475e130013..9456a4a56c 100644
--- a/activerecord/lib/active_record/type/value.rb
+++ b/activerecord/lib/active_record/type/value.rb
@@ -76,6 +76,13 @@ module ActiveRecord
         false
       end
 
+      def ==(other)
+        self.class == other.class &&
+          precision == other.precision &&
+          scale == other.scale &&
+          limit == other.limit
+      end
+
       private
 
       def type_cast(value)