1 files changed, 39 insertions, 30 deletions

diff --git a/test/test_helper.rb b/test/test_helper.rb
index c21f75d..0bf3c90 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -1,4 +1,5 @@
 # -*- encoding: binary -*-
+# frozen_string_literal: false
 
 # Copyright (c) 2005 Zed A. Shaw
 # You can redistribute it and/or modify it under the same terms as Ruby 1.8 or
@@ -28,22 +29,43 @@ require 'tempfile'
 require 'fileutils'
 require 'logger'
 require 'unicorn'
+require 'io/nonblock'
 
 if ENV['DEBUG']
   require 'ruby-debug'
   Debugger.start
 end
 
+unless RUBY_VERSION < '3.1'
+  warn "Unicorn was only tested against MRI up to 3.0.\n" \
+       "It might not properly work with #{RUBY_VERSION}"
+end
+
 def redirect_test_io
   orig_err = STDERR.dup
   orig_out = STDOUT.dup
-  STDERR.reopen("test_stderr.#{$$}.log", "a")
-  STDOUT.reopen("test_stdout.#{$$}.log", "a")
+  rdr_pid = $$
+  new_out = File.open("test_stdout.#$$.log", "a")
+  new_err = File.open("test_stderr.#$$.log", "a")
+  new_out.sync = new_err.sync = true
+
+  if tail = ENV['TAIL'] # "tail -F" if GNU, "tail -f" otherwise
+    require 'shellwords'
+    cmd = tail.shellsplit
+    cmd << new_out.path
+    cmd << new_err.path
+    pid = Process.spawn(*cmd, { 1 => 2, :pgroup => true })
+    sleep 0.1 # wait for tail(1) to startup
+  end
+  STDERR.reopen(new_err)
+  STDOUT.reopen(new_out)
   STDERR.sync = STDOUT.sync = true
 
   at_exit do
-    File.unlink("test_stderr.#{$$}.log") rescue nil
-    File.unlink("test_stdout.#{$$}.log") rescue nil
+    if rdr_pid == $$
+      File.unlink(new_out.path) rescue nil
+      File.unlink(new_err.path) rescue nil
+    end
   end
 
   begin
@@ -51,6 +73,7 @@ def redirect_test_io
   ensure
     STDERR.reopen(orig_err)
     STDOUT.reopen(orig_out)
+    Process.kill(:TERM, pid) if pid
   end
 end
 
@@ -265,34 +288,20 @@ def wait_for_death(pid)
   raise "PID:#{pid} never died!"
 end
 
-# executes +cmd+ and chunks its STDOUT
-def chunked_spawn(stdout, *cmd)
-  fork {
-    crd, cwr = IO.pipe
-    crd.binmode
-    cwr.binmode
-    crd.sync = cwr.sync = true
-
-    pid = fork {
-      STDOUT.reopen(cwr)
-      crd.close
-      cwr.close
-      exec(*cmd)
-    }
-    cwr.close
-    begin
-      buf = crd.readpartial(16384)
-      stdout.write("#{'%x' % buf.size}\r\n#{buf}")
-    rescue EOFError
-      stdout.write("0\r\n")
-      pid, status = Process.waitpid(pid)
-      exit status.exitstatus
-    end while true
-  }
-end
-
 def reset_sig_handlers
   %w(WINCH QUIT INT TERM USR1 USR2 HUP TTIN TTOU CHLD).each do |sig|
     trap(sig, "DEFAULT")
   end
 end
+
+def tcp_socket(*args)
+  sock = TCPSocket.new(*args)
+  sock.nonblock = false
+  sock
+end
+
+def unix_socket(*args)
+  sock = UNIXSocket.new(*args)
+  sock.nonblock = false
+  sock
+end