Update to ruby/spec@3fc4444

1 files changed, 4 insertions, 4 deletions

diff --git a/spec/ruby/core/class/attached_object_spec.rb b/spec/ruby/core/class/attached_object_spec.rb
index 115d5fa563..d97f9cc93e 100644
--- a/spec/ruby/core/class/attached_object_spec.rb
+++ b/spec/ruby/core/class/attached_object_spec.rb
@@ -19,13 +19,13 @@ ruby_version_is '3.2' do
     it "raises TypeError if the class is not a singleton class" do
       a = Class.new
 
-      -> { a.attached_object }.should raise_error(TypeError)
+      -> { a.attached_object }.should raise_error(TypeError, /is not a singleton class/)
     end
 
     it "raises TypeError for special singleton classes" do
-      -> { nil.singleton_class.attached_object }.should raise_error(TypeError)
-      -> { true.singleton_class.attached_object }.should raise_error(TypeError)
-      -> { false.singleton_class.attached_object }.should raise_error(TypeError)
+      -> { nil.singleton_class.attached_object }.should raise_error(TypeError, /`NilClass' is not a singleton class/)
+      -> { true.singleton_class.attached_object }.should raise_error(TypeError, /`TrueClass' is not a singleton class/)
+      -> { false.singleton_class.attached_object }.should raise_error(TypeError, /`FalseClass' is not a singleton class/)
     end
   end
 end