store enum mapping using `Strings` instead of `Symbols`.

This allows to assign both `String` and `Symbol` values to the enum
without having to call `to_sym`, which is a security problem.

1 files changed, 7 insertions, 2 deletions

diff --git a/activerecord/test/cases/enum_test.rb b/activerecord/test/cases/enum_test.rb
index 087db4c32c..54cc60913a 100644
--- a/activerecord/test/cases/enum_test.rb
+++ b/activerecord/test/cases/enum_test.rb
@@ -17,8 +17,8 @@ class EnumTest < ActiveRecord::TestCase
   end
 
   test "query state with symbol" do
-    assert_equal :proposed, @book.status
-    assert_equal :unread, @book.read_status
+    assert_equal "proposed", @book.status
+    assert_equal "unread", @book.read_status
   end
 
   test "find via scope" do
@@ -46,6 +46,11 @@ class EnumTest < ActiveRecord::TestCase
     assert @book.written?
   end
 
+  test "assign string value" do
+    @book.status = "written"
+    assert @book.written?
+  end
+
   test "assign non existing value raises an error" do
     e = assert_raises(ArgumentError) do
       @book.status = :unknown