Execute `ConfirmationValidator` validation when `_confirmation`'s value is `false`

1 files changed, 13 insertions, 0 deletions

diff --git a/activemodel/test/cases/validations/confirmation_validation_test.rb b/activemodel/test/cases/validations/confirmation_validation_test.rb
index e84415a868..8b2c65289b 100644
--- a/activemodel/test/cases/validations/confirmation_validation_test.rb
+++ b/activemodel/test/cases/validations/confirmation_validation_test.rb
@@ -37,6 +37,19 @@ class ConfirmationValidationTest < ActiveModel::TestCase
     assert t.valid?
   end
 
+  def test_validates_confirmation_of_with_boolean_attribute
+    Topic.validates_confirmation_of(:approved)
+
+    t = Topic.new(approved: true, approved_confirmation: nil)
+    assert t.valid?
+
+    t.approved_confirmation = false
+    assert t.invalid?
+
+    t.approved_confirmation = true
+    assert t.valid?
+  end
+
   def test_validates_confirmation_of_for_ruby_class
     Person.validates_confirmation_of :karma