Merge pull request #28161 from bogdanvlviv/add_test_attributes

Add test for  method `#attributes`

activerecord/test/cases/base_test.rb

@@ -703,6 +703,17 @@ def test_attributes_on_dummy_time_with_invalid_time
     assert_nil topic.bonus_time
   end
 
+  def test_attributes
+    category = Category.new(name: "Ruby")
+
+    expected_attributes = category.attribute_names.map do |attribute_name|
+      [attribute_name, category.public_send(attribute_name)]
+    end.to_h
+
+    assert_instance_of Hash, category.attributes
+    assert_equal expected_attributes, category.attributes
+  end
+
   def test_boolean
     b_nil = Boolean.create("value" => nil)
     nil_id = b_nil.id