Merge pull request rails#41858 from jhawthorn/fix_build

Fix build on Ruby 3.0.1

Author: jhawthorn

activerecord/test/cases/validations/numericality_validation_test.rb

@@ -111,9 +111,10 @@ def test_virtual_attribute_with_precision_round_half_even
 
     subject = model_class.new(virtual_decimal_number: 123.455)
 
-    if RUBY_VERSION > "3.0.0"
+    if 123.455.to_d(5) == BigDecimal("123.46")
       # BigDecimal's to_d behavior changed in BigDecimal 3.0.1, see https://github.com/ruby/bigdecimal/issues/70
-      # TODO: replace this with a check against BigDecimal::VERSION
+      # TODO: replace this with a check against BigDecimal::VERSION, currently
+      # we just check the behaviour because both versions of BigDecimal report "3.0.0"
       assert_not_predicate subject, :valid?
     else
       assert_predicate subject, :valid?