Rails 7 fails with Enum columns

[KDGundermann]

Issue

Migrating my old application to Rails 7 my tests fails on accessing the enum columns

Expected behavior

When accessing an enum column which is defined as:
enum orderstate: { open: "O", closed: "C" }
either order.open? or order.closed? should be truthy

Actual behavior

accessing an enum column always return false

How to reproduce

ActiveRecord Enum Test

class Datatypes < ActiveRecord::Base
  self.table_name = 'sst_datatypes'

  enum tinyint: { andromeda: 10 , bootes: 20 }
  enum char_10: { alpha: "A", beta: "B" }
end

class EnumTest < Minitest::Test
  def test_enum
    r = Datatypes.new

    r.andromeda!
    r.alpha!

    assert r.andromeda?
    refute r.bootes?

    assert r.alpha?
    refute r.beta?
  end
end

Details

• Rails version: 7.0.4.2

• Ruby version: 3.1.3

• SQL Server adapter version: 7.0.0.0

• TinyTDS version: 2.1.5

• FreeTDS details:

  run `tsql -C` and paste here the output.
  
  Compile-time settings (established with the "configure" script)
                            Version: freetds v1.3.6
             freetds.conf directory: /usr/local/etc
     MS db-lib source compatibility: no
        Sybase binary compatibility: no
                      Thread safety: yes
                      iconv library: yes
                        TDS version: 7.4
                              iODBC: no
                           unixodbc: no
              SSPI "trusted" logins: no
                           Kerberos: no
                            OpenSSL: yes
                             GnuTLS: no
                               MARS: yes
  
  

[KDGundermann]

debug stepping through the test leads to :

    # activerecord-ssqlserver-adapter-7.0.0.0/lib/active_record/connection_adapter/sqlserver/type/data.rb
      def eql?(other)
        self.class == other.class && value == other.value
      end

where self.class => ActiveRecord::ConnectionAdapters::SQLServer::Type::Data with value "A"
and other.class => String with value "A"

so its failing on self.class == other.class