diff --git a/lib/rspec/rails/adapters.rb b/lib/rspec/rails/adapters.rb
index 63b2ed4f5c..9e187f9597 100644
--- a/lib/rspec/rails/adapters.rb
+++ b/lib/rspec/rails/adapters.rb
@@ -84,6 +84,7 @@ def self.disable_testunit_autorun
 
     # @private
     class AssertionDelegator < Module
+
       def initialize(*assertion_modules)
         assertion_class = Class.new(SimpleDelegator) do
           include ::RSpec::Rails::Assertions
@@ -112,6 +113,47 @@ def assertion_instance
       end
     end
 
+    class ControllerAssertionDelegator < AssertionDelegator
+      module Setup
+        extend ActiveSupport::Concern
+
+        included { init_setup }
+
+        module ClassMethods
+          attr_reader :setup_methods, :setup_blocks
+          attr_accessor :controller_class
+
+          def init_setup
+            @setup_methods ||= []
+            @setup_blocks ||= []
+          end
+
+          def setup(*methods, &block)
+            @setup_methods += methods
+            @setup_blocks << block if block
+          end
+        end
+
+        def initialize(*)
+          super
+          self.class.controller_class = described_class
+          run_setup
+        end
+
+        def run_setup
+          self.class.setup_methods.each { |m| send(m) }
+          self.class.setup_blocks.each { |b| b.call }
+        end
+      end
+
+      def initialize(*args)
+        args << Setup
+        args << ActionDispatch::Assertions::RoutingAssertions
+        args << ActionController::TestCase::Behavior
+        super(*args)
+      end
+    end
+
     # Adapts example groups for `Minitest::Test::LifecycleHooks`
     #
     # @private
diff --git a/lib/rspec/rails/example/controller_example_group.rb b/lib/rspec/rails/example/controller_example_group.rb
index 198f22ab5f..b11616d7e8 100644
--- a/lib/rspec/rails/example/controller_example_group.rb
+++ b/lib/rspec/rails/example/controller_example_group.rb
@@ -1,9 +1,7 @@
 module RSpec
   module Rails
     # @private
-    ControllerAssertionDelegator = RSpec::Rails::AssertionDelegator.new(
-      ActionDispatch::Assertions::RoutingAssertions
-    )
+    ControllerAssertionDelegatorConst = RSpec::Rails::ControllerAssertionDelegator.new
 
     # @api public
     # Container module for controller spec functionality.
@@ -15,7 +13,7 @@ module ControllerExampleGroup
       include RSpec::Rails::Matchers::RedirectTo
       include RSpec::Rails::Matchers::RenderTemplate
       include RSpec::Rails::Matchers::RoutingMatchers
-      include ControllerAssertionDelegator
+      include ControllerAssertionDelegatorConst
 
       # Class-level DSL for controller specs.
       module ClassMethods