No need to rescue here. Invoking the wrong method in an object can happen anywhere if you are not careful. In other words, test your shit.

1 files changed, 0 insertions, 9 deletions

diff --git a/activemodel/test/cases/validations/exclusion_validation_test.rb b/activemodel/test/cases/validations/exclusion_validation_test.rb
index fe0d13ec33..72a383f128 100644
--- a/activemodel/test/cases/validations/exclusion_validation_test.rb
+++ b/activemodel/test/cases/validations/exclusion_validation_test.rb
@@ -54,13 +54,4 @@ class ExclusionValidationTest < ActiveModel::TestCase
     p.title = "wasabi"
     assert p.valid?
   end
-
-  def test_validates_exclustion_with_invalid_lambda_return
-    Topic.validates_exclusion_of :title, :in => lambda{ |topic| false }
-
-    p = Topic.new
-    p.title = "wasabi"
-    p.author_name = "sikachu"
-    assert_raise(ArgumentError){ p.valid? }
-  end
 end