3 files changed, 11 insertions, 13 deletions
diff --git a/activesupport/lib/active_support/test_case.rb b/activesupport/lib/active_support/test_case.rb
index 4e42db4500..f17743b6db 100644
--- a/activesupport/lib/active_support/test_case.rb
+++ b/activesupport/lib/active_support/test_case.rb
@@ -130,7 +130,7 @@ module ActiveSupport
     alias_method :method_name, :name
 
     include ActiveSupport::Testing::TaggedLogging
-    include ActiveSupport::Testing::SetupAndTeardown
+    prepend ActiveSupport::Testing::SetupAndTeardown
     include ActiveSupport::Testing::Assertions
     include ActiveSupport::Testing::Deprecation
     include ActiveSupport::Testing::TimeHelpers
diff --git a/activesupport/lib/active_support/testing/setup_and_teardown.rb b/activesupport/lib/active_support/testing/setup_and_teardown.rb
index 35236f1401..35321cd157 100644
--- a/activesupport/lib/active_support/testing/setup_and_teardown.rb
+++ b/activesupport/lib/active_support/testing/setup_and_teardown.rb
@@ -1,6 +1,5 @@
 # frozen_string_literal: true
 
-require "active_support/concern"
 require "active_support/callbacks"
 
 module ActiveSupport
@@ -19,11 +18,10 @@ module ActiveSupport
     #     end
     #   end
     module SetupAndTeardown
-      extend ActiveSupport::Concern
-
-      included do
-        include ActiveSupport::Callbacks
-        define_callbacks :setup, :teardown
+      def self.prepended(klass)
+        klass.include ActiveSupport::Callbacks
+        klass.define_callbacks :setup, :teardown
+        klass.extend ClassMethods
       end
 
       module ClassMethods
@@ -47,12 +45,10 @@ module ActiveSupport
         begin
           run_callbacks :teardown
         rescue => e
-          error = e
+          self.failures << Minitest::UnexpectedError.new(e)
         end
 
         super
-      ensure
-        raise error if error
       end
     end
   end
diff --git a/activesupport/test/testing/after_teardown_test.rb b/activesupport/test/testing/after_teardown_test.rb
index 68c368909c..961af49479 100644
--- a/activesupport/test/testing/after_teardown_test.rb
+++ b/activesupport/test/testing/after_teardown_test.rb
@@ -4,13 +4,14 @@ require "abstract_unit"
 
 module OtherAfterTeardown
   def after_teardown
+    super
+
     @witness = true
   end
 end
 
-class AfterTeardownTest < Minitest::Test
+class AfterTeardownTest < ActiveSupport::TestCase
   include OtherAfterTeardown
-  include ActiveSupport::Testing::SetupAndTeardown
 
   attr_writer :witness
 
@@ -21,11 +22,12 @@ class AfterTeardownTest < Minitest::Test
   end
 
   def after_teardown
-    assert_raises MyError do
+    assert_changes -> { failures.count }, from: 0, to: 1 do
       super
     end
 
     assert_equal true, @witness
+    failures.clear
   end
 
   def test_teardown_raise_but_all_after_teardown_method_are_called