diff --git a/lib/turbo/engine.rb b/lib/turbo/engine.rb
index b7efc3ba..ecfd82e0 100644
--- a/lib/turbo/engine.rb
+++ b/lib/turbo/engine.rb
@@ -92,8 +92,8 @@ class Engine < Rails::Engine
     end
 
     initializer "turbo.broadcastable" do
-      ActiveSupport.on_load(:active_job) do
-        ActiveSupport.on_load(:active_record) do
+      ActiveSupport.on_load(:active_record) do
+        if defined?(ActiveJob)
           include Turbo::Broadcastable
         end
       end
@@ -123,9 +123,9 @@ class Engine < Rails::Engine
         include Turbo::TestAssertions
       end
 
-      ActiveSupport.on_load(:active_job) do
-        ActiveSupport.on_load(:action_cable) do
-          ActiveSupport.on_load(:active_support_test_case) do
+      ActiveSupport.on_load(:action_cable) do
+        ActiveSupport.on_load(:active_support_test_case) do
+          if defined?(ActiveJob)
             require "turbo/broadcastable/test_helper"
             include Turbo::Broadcastable::TestHelper
           end
diff --git a/test/broadcastable/test_helper_test.rb b/test/broadcastable/test_helper_test.rb
index c6b963ce..aa3f792c 100644
--- a/test/broadcastable/test_helper_test.rb
+++ b/test/broadcastable/test_helper_test.rb
@@ -1,269 +1,263 @@
 require "test_helper"
 
-module Turbo
-  module Broadcastable
-    module TestHelper
-      class CaptureTurboStreamBroadcastsTest < ActiveSupport::TestCase
-        include Turbo::Broadcastable::TestHelper
-
-        test "#capture_turbo_stream_broadcasts returns <turbo-stream> elements broadcast on a stream name" do
-          message = Message.new(id: 1)
-
-          message.broadcast_replace_to "messages"
-          message.broadcast_remove_to "messages"
-          replace, remove, *rest = capture_turbo_stream_broadcasts "messages"
-
-          assert_empty rest
-          assert_equal "replace", replace["action"]
-          assert_equal "remove", remove["action"]
-          assert_not_empty replace.at("template").element_children
-          assert_nil remove.at("template")
-        end
-
-        test "#capture_turbo_stream_broadcasts returns an empty Array when no broadcasts happened on a stream name" do
-          assert_empty capture_turbo_stream_broadcasts("messages")
-        end
-
-        test "#capture_turbo_stream_broadcasts returns <turbo-stream> elements broadcast on a stream object" do
-          message = Message.new(id: 1)
-
-          message.broadcast_replace
-          message.broadcast_remove
-          replace, remove, *rest = capture_turbo_stream_broadcasts message
-
-          assert_empty rest
-          assert_equal "replace", replace["action"]
-          assert_equal "remove", remove["action"]
-          assert_not_empty replace.at("template").element_children
-          assert_nil remove.at("template")
-        end
-
-        test "#capture_turbo_stream_broadcasts returns <turbo-stream> elements broadcast on an Array of stream objects" do
-          message = Message.new(id: 1)
-
-          message.broadcast_replace_to [message, :special]
-          message.broadcast_remove_to [message, :special]
-          replace, remove, *rest = capture_turbo_stream_broadcasts [message, :special]
-
-          assert_empty rest
-          assert_equal "replace", replace["action"]
-          assert_equal "remove", remove["action"]
-          assert_not_empty replace.at("template").element_children
-          assert_nil remove.at("template")
-        end
-
-        test "#capture_turbo_stream_broadcasts returns <turbo-stream> elements broadcast on a stream name from a block" do
-          message = Message.new(id: 1)
-
-          replace, remove, *rest = capture_turbo_stream_broadcasts "messages" do
-            message.broadcast_replace_to "messages"
-            message.broadcast_remove_to "messages"
-          end
-
-          assert_equal "replace", replace["action"]
-          assert_equal "remove", remove["action"]
-          assert_empty rest
-        end
-
-        test "#capture_turbo_stream_broadcasts returns <turbo-stream> elements broadcast on a stream object from a block" do
-          message = Message.new(id: 1)
-
-          replace, remove, *rest = capture_turbo_stream_broadcasts message do
-            message.broadcast_replace
-            message.broadcast_remove
-          end
-
-          assert_empty rest
-          assert_equal "replace", replace["action"]
-          assert_equal "remove", remove["action"]
-          assert_not_empty replace.at("template").element_children
-          assert_nil remove.at("template")
-        end
-
-        test "#capture_turbo_stream_broadcasts returns <turbo-stream> elements broadcast on an Array of stream objects from a block" do
-          message = Message.new(id: 1)
-
-          replace, remove, *rest = capture_turbo_stream_broadcasts [message, :special] do
-            message.broadcast_replace_to [message, :special]
-            message.broadcast_remove_to [message, :special]
-          end
-
-          assert_empty rest
-          assert_equal "replace", replace["action"]
-          assert_equal "remove", remove["action"]
-          assert_not_empty replace.at("template").element_children
-          assert_nil remove.at("template")
-        end
-
-        test "#capture_turbo_stream_broadcasts returns an empty Array when no broadcasts happened on a stream name from a block" do
-          streams = capture_turbo_stream_broadcasts "messages" do
-            # no-op
-          end
-
-          assert_empty streams
-        end
-      end
+class Turbo::Broadcastable::TestHelper::CaptureTurboStreamBroadcastsTest < ActiveSupport::TestCase
+  include Turbo::Broadcastable::TestHelper
+
+  test "#capture_turbo_stream_broadcasts returns <turbo-stream> elements broadcast on a stream name" do
+    message = Message.new(id: 1)
+
+    message.broadcast_replace_to "messages"
+    message.broadcast_remove_to "messages"
+    replace, remove, *rest = capture_turbo_stream_broadcasts "messages"
+
+    assert_empty rest
+    assert_equal "replace", replace["action"]
+    assert_equal "remove", remove["action"]
+    assert_not_empty replace.at("template").element_children
+    assert_nil remove.at("template")
+  end
+
+  test "#capture_turbo_stream_broadcasts returns an empty Array when no broadcasts happened on a stream name" do
+    assert_empty capture_turbo_stream_broadcasts("messages")
+  end
+
+  test "#capture_turbo_stream_broadcasts returns <turbo-stream> elements broadcast on a stream object" do
+    message = Message.new(id: 1)
+
+    message.broadcast_replace
+    message.broadcast_remove
+    replace, remove, *rest = capture_turbo_stream_broadcasts message
+
+    assert_empty rest
+    assert_equal "replace", replace["action"]
+    assert_equal "remove", remove["action"]
+    assert_not_empty replace.at("template").element_children
+    assert_nil remove.at("template")
+  end
+
+  test "#capture_turbo_stream_broadcasts returns <turbo-stream> elements broadcast on an Array of stream objects" do
+    message = Message.new(id: 1)
+
+    message.broadcast_replace_to [message, :special]
+    message.broadcast_remove_to [message, :special]
+    replace, remove, *rest = capture_turbo_stream_broadcasts [message, :special]
+
+    assert_empty rest
+    assert_equal "replace", replace["action"]
+    assert_equal "remove", remove["action"]
+    assert_not_empty replace.at("template").element_children
+    assert_nil remove.at("template")
+  end
+
+  test "#capture_turbo_stream_broadcasts returns <turbo-stream> elements broadcast on a stream name from a block" do
+    message = Message.new(id: 1)
+
+    replace, remove, *rest = capture_turbo_stream_broadcasts "messages" do
+      message.broadcast_replace_to "messages"
+      message.broadcast_remove_to "messages"
+    end
+
+    assert_equal "replace", replace["action"]
+    assert_equal "remove", remove["action"]
+    assert_empty rest
+  end
+
+  test "#capture_turbo_stream_broadcasts returns <turbo-stream> elements broadcast on a stream object from a block" do
+    message = Message.new(id: 1)
+
+    replace, remove, *rest = capture_turbo_stream_broadcasts message do
+      message.broadcast_replace
+      message.broadcast_remove
+    end
+
+    assert_empty rest
+    assert_equal "replace", replace["action"]
+    assert_equal "remove", remove["action"]
+    assert_not_empty replace.at("template").element_children
+    assert_nil remove.at("template")
+  end
+
+  test "#capture_turbo_stream_broadcasts returns <turbo-stream> elements broadcast on an Array of stream objects from a block" do
+    message = Message.new(id: 1)
+
+    replace, remove, *rest = capture_turbo_stream_broadcasts [message, :special] do
+      message.broadcast_replace_to [message, :special]
+      message.broadcast_remove_to [message, :special]
+    end
+
+    assert_empty rest
+    assert_equal "replace", replace["action"]
+    assert_equal "remove", remove["action"]
+    assert_not_empty replace.at("template").element_children
+    assert_nil remove.at("template")
+  end
+
+  test "#capture_turbo_stream_broadcasts returns an empty Array when no broadcasts happened on a stream name from a block" do
+    streams = capture_turbo_stream_broadcasts "messages" do
+      # no-op
+    end
+
+    assert_empty streams
+  end
+end
 
-      class Turbo::Broadcastable::TestHelper::AssertTurboStreamBroadcastsTest < ActiveSupport::TestCase
-        include Turbo::Broadcastable::TestHelper
+class Turbo::Broadcastable::TestHelper::AssertTurboStreamBroadcastsTest < ActiveSupport::TestCase
+  include Turbo::Broadcastable::TestHelper
 
-        test "#assert_turbo_stream_broadcasts passes when there is a broadcast" do
-          message = Message.new(id: 1)
+  test "#assert_turbo_stream_broadcasts passes when there is a broadcast" do
+    message = Message.new(id: 1)
 
-          message.broadcast_replace_to "messages"
+    message.broadcast_replace_to "messages"
 
-          assert_turbo_stream_broadcasts "messages"
-        end
+    assert_turbo_stream_broadcasts "messages"
+  end
 
-        test "#assert_turbo_stream_broadcasts passes when there are multiple broadcasts" do
-          message = Message.new(id: 1)
+  test "#assert_turbo_stream_broadcasts passes when there are multiple broadcasts" do
+    message = Message.new(id: 1)
 
-          message.broadcast_replace_to "messages"
-          message.broadcast_remove_to "messages"
+    message.broadcast_replace_to "messages"
+    message.broadcast_remove_to "messages"
 
-          assert_turbo_stream_broadcasts "messages"
-        end
+    assert_turbo_stream_broadcasts "messages"
+  end
 
-        test "#assert_turbo_stream_broadcasts fails when no broadcasts happened on a stream name" do
-          assert_raises Minitest::Assertion do
-            assert_turbo_stream_broadcasts "messages"
-          end
-        end
+  test "#assert_turbo_stream_broadcasts fails when no broadcasts happened on a stream name" do
+    assert_raises Minitest::Assertion do
+      assert_turbo_stream_broadcasts "messages"
+    end
+  end
 
-        test "#assert_turbo_stream_broadcasts with a count: optional fails when no broadcasts happened on a stream name" do
-          singular_failure = assert_raises Minitest::Assertion do
-            assert_turbo_stream_broadcasts "messages", count: 1
-          end
+  test "#assert_turbo_stream_broadcasts with a count: optional fails when no broadcasts happened on a stream name" do
+    singular_failure = assert_raises Minitest::Assertion do
+      assert_turbo_stream_broadcasts "messages", count: 1
+    end
 
-          assert_includes singular_failure.message, %(1 Turbo Stream broadcast on "messages")
+    assert_includes singular_failure.message, %(1 Turbo Stream broadcast on "messages")
 
-          plural_failure = assert_raises Minitest::Assertion do
-            assert_turbo_stream_broadcasts "messages", count: 2
-          end
+    plural_failure = assert_raises Minitest::Assertion do
+      assert_turbo_stream_broadcasts "messages", count: 2
+    end
 
-          assert_includes plural_failure.message, %(2 Turbo Stream broadcasts on "messages")
-        end
+    assert_includes plural_failure.message, %(2 Turbo Stream broadcasts on "messages")
+  end
 
-        test "#assert_turbo_stream_broadcasts passes when broadcast on a stream object" do
-          message = Message.new(id: 1)
+  test "#assert_turbo_stream_broadcasts passes when broadcast on a stream object" do
+    message = Message.new(id: 1)
 
-          message.broadcast_replace
-          message.broadcast_remove
+    message.broadcast_replace
+    message.broadcast_remove
 
-          assert_turbo_stream_broadcasts message, count: 2
-        end
+    assert_turbo_stream_broadcasts message, count: 2
+  end
 
-        test "#assert_turbo_stream_broadcasts passes when broadcast on an Array of stream objects" do
-          message = Message.new(id: 1)
+  test "#assert_turbo_stream_broadcasts passes when broadcast on an Array of stream objects" do
+    message = Message.new(id: 1)
 
-          message.broadcast_replace_to [message, :special]
-          message.broadcast_remove_to [message, :special]
+    message.broadcast_replace_to [message, :special]
+    message.broadcast_remove_to [message, :special]
 
-          assert_turbo_stream_broadcasts [message, :special], count: 2
-        end
+    assert_turbo_stream_broadcasts [message, :special], count: 2
+  end
 
-        test "#assert_turbo_stream_broadcasts with a count: option passes when broadcast on a stream name from a block" do
-          message = Message.new(id: 1)
+  test "#assert_turbo_stream_broadcasts with a count: option passes when broadcast on a stream name from a block" do
+    message = Message.new(id: 1)
 
-          assert_turbo_stream_broadcasts "messages", count: 2 do
-            message.broadcast_replace_to "messages"
-            message.broadcast_remove_to "messages"
-          end
-        end
+    assert_turbo_stream_broadcasts "messages", count: 2 do
+      message.broadcast_replace_to "messages"
+      message.broadcast_remove_to "messages"
+    end
+  end
 
-        test "#assert_turbo_stream_broadcasts returns <turbo-stream> elements broadcast on a stream object from a block" do
-          message = Message.new(id: 1)
+  test "#assert_turbo_stream_broadcasts returns <turbo-stream> elements broadcast on a stream object from a block" do
+    message = Message.new(id: 1)
 
-          assert_turbo_stream_broadcasts message, count: 2 do
-            message.broadcast_replace
-            message.broadcast_remove
-          end
-        end
+    assert_turbo_stream_broadcasts message, count: 2 do
+      message.broadcast_replace
+      message.broadcast_remove
+    end
+  end
 
-        test "#assert_turbo_stream_broadcasts returns <turbo-stream> elements broadcast on an Array of stream objects from a block" do
-          message = Message.new(id: 1)
+  test "#assert_turbo_stream_broadcasts returns <turbo-stream> elements broadcast on an Array of stream objects from a block" do
+    message = Message.new(id: 1)
 
-          assert_turbo_stream_broadcasts [message, :special], count: 2 do
-            message.broadcast_replace_to [message, :special]
-            message.broadcast_remove_to [message, :special]
-          end
-        end
+    assert_turbo_stream_broadcasts [message, :special], count: 2 do
+      message.broadcast_replace_to [message, :special]
+      message.broadcast_remove_to [message, :special]
+    end
+  end
 
-        test "#assert_turbo_stream_broadcasts fails when no broadcasts happened on a stream name from a block" do
-          assert_raises Minitest::Assertion do
-            assert_turbo_stream_broadcasts "messages" do
-              # no-op
-            end
-          end
-        end
+  test "#assert_turbo_stream_broadcasts fails when no broadcasts happened on a stream name from a block" do
+    assert_raises Minitest::Assertion do
+      assert_turbo_stream_broadcasts "messages" do
+        # no-op
       end
+    end
+  end
+end
 
-      class Turbo::Broadcastable::TestHelper::AssertNoTurboStreamBroadcastsTest < ActiveSupport::TestCase
-        include Turbo::Broadcastable::TestHelper
+class Turbo::Broadcastable::TestHelper::AssertNoTurboStreamBroadcastsTest < ActiveSupport::TestCase
+  include Turbo::Broadcastable::TestHelper
 
-        test "#assert_no_turbo_stream_broadcasts asserts no broadcasts with a stream name" do
-          assert_no_turbo_stream_broadcasts "messages"
-        end
+  test "#assert_no_turbo_stream_broadcasts asserts no broadcasts with a stream name" do
+    assert_no_turbo_stream_broadcasts "messages"
+  end
 
-        test "#assert_no_turbo_stream_broadcasts asserts no broadcasts with a stream name from a block" do
-          assert_no_turbo_stream_broadcasts "messages" do
-            # no-op
-          end
-        end
+  test "#assert_no_turbo_stream_broadcasts asserts no broadcasts with a stream name from a block" do
+    assert_no_turbo_stream_broadcasts "messages" do
+      # no-op
+    end
+  end
 
-        test "#assert_no_turbo_stream_broadcasts asserts no broadcasts with a stream object" do
-          message = Message.new(id: 1)
+  test "#assert_no_turbo_stream_broadcasts asserts no broadcasts with a stream object" do
+    message = Message.new(id: 1)
 
-          assert_no_turbo_stream_broadcasts message
-        end
+    assert_no_turbo_stream_broadcasts message
+  end
 
-        test "#assert_no_turbo_stream_broadcasts asserts no broadcasts with a stream object from a block" do
-          message = Message.new(id: 1)
+  test "#assert_no_turbo_stream_broadcasts asserts no broadcasts with a stream object from a block" do
+    message = Message.new(id: 1)
 
-          assert_no_turbo_stream_broadcasts message do
-            # no-op
-          end
-        end
+    assert_no_turbo_stream_broadcasts message do
+      # no-op
+    end
+  end
 
-        test "#assert_no_turbo_stream_broadcasts fails when when a broadcast happened on a stream name" do
-          message = Message.new(id: 1)
+  test "#assert_no_turbo_stream_broadcasts fails when when a broadcast happened on a stream name" do
+    message = Message.new(id: 1)
 
-          assert_raises Minitest::Assertion do
-            message.broadcast_remove_to "messages"
+    assert_raises Minitest::Assertion do
+      message.broadcast_remove_to "messages"
 
-            assert_no_turbo_stream_broadcasts "messages"
-          end
-        end
+      assert_no_turbo_stream_broadcasts "messages"
+    end
+  end
 
-        test "#assert_no_turbo_stream_broadcasts fails when when a broadcast happened on a stream name from a block" do
-          message = Message.new(id: 1)
+  test "#assert_no_turbo_stream_broadcasts fails when when a broadcast happened on a stream name from a block" do
+    message = Message.new(id: 1)
 
-          assert_raises Minitest::Assertion do
-            assert_no_turbo_stream_broadcasts "messages" do
-              message.broadcast_remove_to "messages"
-            end
-          end
-        end
+    assert_raises Minitest::Assertion do
+      assert_no_turbo_stream_broadcasts "messages" do
+        message.broadcast_remove_to "messages"
+      end
+    end
+  end
 
-        test "#assert_no_turbo_stream_broadcasts fails when when a broadcast happened on a stream object" do
-          message = Message.new(id: 1)
+  test "#assert_no_turbo_stream_broadcasts fails when when a broadcast happened on a stream object" do
+    message = Message.new(id: 1)
 
-          assert_raises Minitest::Assertion do
-            message.broadcast_remove
+    assert_raises Minitest::Assertion do
+      message.broadcast_remove
 
-            assert_no_turbo_stream_broadcasts message
-          end
-        end
+      assert_no_turbo_stream_broadcasts message
+    end
+  end
 
-        test "#assert_no_turbo_stream_broadcasts fails when when a broadcast happened on a stream object from a block" do
-          message = Message.new(id: 1)
+  test "#assert_no_turbo_stream_broadcasts fails when when a broadcast happened on a stream object from a block" do
+    message = Message.new(id: 1)
 
-          assert_raises Minitest::Assertion do
-            assert_no_turbo_stream_broadcasts message do
-              message.broadcast_remove
-            end
-          end
-        end
+    assert_raises Minitest::Assertion do
+      assert_no_turbo_stream_broadcasts message do
+        message.broadcast_remove
       end
     end
   end