1 files changed, 28 insertions, 0 deletions
diff --git a/railties/test/application/server_test.rb b/railties/test/application/server_test.rb
index 97b3b4f6b3..6db9a3b9e8 100644
--- a/railties/test/application/server_test.rb
+++ b/railties/test/application/server_test.rb
@@ -1,12 +1,14 @@
 # frozen_string_literal: true
 
 require "isolation/abstract_unit"
+require "console_helpers"
 require "rails/command"
 require "rails/commands/server/server_command"
 
 module ApplicationTests
   class ServerTest < ActiveSupport::TestCase
     include ActiveSupport::Testing::Isolation
+    include ConsoleHelpers
 
     def setup
       build_app
@@ -29,5 +31,31 @@ module ApplicationTests
       log = File.read(Rails.application.config.paths["log"].first)
       assert_match(/DEPRECATION WARNING: Use `Rails::Application` subclass to start the server is deprecated/, log)
     end
+
+    test "restart rails server with custom pid file path" do
+      skip "PTY unavailable" unless available_pty?
+
+      master, slave = PTY.open
+      pid = nil
+
+      begin
+        pid = Process.spawn("#{app_path}/bin/rails server -P tmp/dummy.pid", in: slave, out: slave, err: slave)
+        assert_output("Listening", master)
+
+        Dir.chdir(app_path) { system("bin/rails restart") }
+
+        assert_output("Restarting", master)
+        assert_output("Inherited", master)
+      ensure
+        kill(pid) if pid
+      end
+    end
+
+    private
+      def kill(pid)
+        Process.kill("TERM", pid)
+        Process.wait(pid)
+      rescue Errno::ESRCH
+      end
   end
 end