Add tests for send_file and redirect_to instrumentation

Author: p8

actionpack/test/controller/redirect_test.rb

@@ -601,6 +601,23 @@ def test_url_from_fallback
     end
   end
 
+  def test_redirect_to_instrumentation
+    payload = nil
+
+    subscriber = proc do |*args|
+      event = ActiveSupport::Notifications::Event.new(*args)
+      payload = event.payload
+    end
+
+    ActiveSupport::Notifications.subscribed(subscriber, "redirect_to.action_controller") do
+      get :simple_redirect
+    end
+
+    assert_equal request, payload[:request]
+    assert_equal 302, payload[:status]
+    assert_equal "http://test.host/redirect/hello_world", payload[:location]
+  end
+
   private
     def with_raise_on_open_redirects
       old_raise_on_open_redirects = ActionController::Base.raise_on_open_redirects

actionpack/test/controller/send_file_test.rb

@@ -207,6 +207,36 @@ def test_send_file_from_before_action
     assert_equal file_data, response.body
   end
 
+  def test_send_file_instrumentation
+    payload = nil
+
+    subscriber = proc do |*args|
+      event = ActiveSupport::Notifications::Event.new(*args)
+      payload = event.payload
+    end
+
+    ActiveSupport::Notifications.subscribed(subscriber, "send_file.action_controller") do
+      process("file")
+    end
+
+    assert_equal __FILE__, payload[:path]
+  end
+
+  def test_send_data_instrumentation
+    payload = nil
+
+    subscriber = proc do |*args|
+      event = ActiveSupport::Notifications::Event.new(*args)
+      payload = event.payload
+    end
+
+    ActiveSupport::Notifications.subscribed(subscriber, "send_data.action_controller") do
+      process("data")
+    end
+
+    assert_equal({}, payload)
+  end
+
   %w(file data).each do |method|
     define_method "test_send_#{method}_status" do
       @controller.options = { stream: false, status: 500 }