update URLMap Regexp usage for Ruby v3.3

lib/puma/rack/urlmap.rb

@@ -34,7 +34,7 @@ def remap(map)
         end
 
         location = location.chomp('/')
-        match = Regexp.new("^#{Regexp.quote(location).gsub('/', '/+')}(.*)", nil, 'n')
+        match = Regexp.new("^#{Regexp.quote(location).gsub('/', '/+')}(.*)", Regexp::NOENCODING)
 
         [host, location, match, app]
       }.sort_by do |(host, location, _, _)|

test/test_url_map.rb

@@ -0,0 +1,36 @@
+require_relative "helper"
+require_relative "helpers/integration"
+
+class TestURLMap < TestIntegration
+  def setup
+    skip_unless :fork
+    super
+  end
+
+  def teardown
+    return if skipped?
+    super
+  end
+
+  # make sure the mapping defined in url_map_test/config.ru works
+  def test_basic_url_mapping
+    skip_unless_signal_exist? :USR2
+
+    @tcp_port = UniquePort.call
+    timeout = 1
+    env = {
+      "BUNDLE_GEMFILE" => File.join(File.expand_path("url_map_test/Gemfile", __dir__))
+    }
+    cmd = "bundle exec puma -q -w 1 --prune-bundler -b tcp://#{HOST}:#{@tcp_port}"
+    Dir.chdir(File.expand_path("url_map_test", __dir__)) do
+      @server = IO.popen(env, cmd.split, "r")
+    end
+    wait_for_server_to_boot
+    @pid = @server.pid
+    connection = connect("/ok")
+    # Puma 6.2.2 and below will time out here with Ruby v3.3
+    # see https://github.com/puma/puma/pull/3165
+    initial_reply = read_body(connection, timeout)
+    assert_match("OK", initial_reply)
+  end
+end

test/url_map_test/Gemfile

@@ -0,0 +1 @@
+gem 'puma', path: '../..'

test/url_map_test/config.ru

@@ -0,0 +1,3 @@
+map "/ok" do
+  run ->(env) { [200, {}, ["OK"]] }
+end