bootstraptest/test_{fork,io,thread}.rb: reduce sleep times

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46379 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

bootstraptest/test_fork.rb

@@ -22,26 +22,32 @@ assert_finish 10, %q{
 }, '[ruby-core:22158]'
 
 assert_normal_exit(<<'End', '[ruby-dev:37934]')
-  Thread.new { sleep 1; Thread.kill Thread.main }
+  main = Thread.current
+  Thread.new { sleep 0.01 until main.stop?; Thread.kill main }
   Process.setrlimit(:NPROC, 1)
   fork {}
 End
 
 assert_equal 'ok', %q{
   begin
+    r, w = IO.pipe
     if pid1 = fork
-      sleep 1
+      w.close
+      r.read(1)
       Process.kill("USR1", pid1)
       _, s = Process.wait2(pid1)
       s.success? ? :ok : :ng
     else
+      r.close
       if pid2 = fork
-        trap("USR1") { Time.now.to_s }
+        trap("USR1") { Time.now.to_s; Process.kill("USR2", pid2) }
+        w.close
         Process.wait2(pid2)
       else
-        sleep 2
+        w.close
+        sleep 0.2
       end
-      exit 0
+      exit true
     end
   rescue NotImplementedError
     :ok
@@ -50,17 +56,16 @@ assert_equal 'ok', %q{
 
 assert_equal '[1, 2]', %q{
   a = []
-  trap(:INT) { a.push(1) }
-  trap(:TERM) { a.push(2) }
+  main = Thread.current
+  trap(:INT) { a.push(1).size == 2 and main.wakeup }
+  trap(:TERM) { a.push(2).size == 2 and main.wakeup }
   pid = $$
   begin
-    fork do
-      sleep 0.5
+    pid = fork do
       Process.kill(:INT, pid)
       Process.kill(:TERM, pid)
     end
-
-    sleep 1
+    Process.wait(pid)
     a.sort
   rescue NotImplementedError
     [1, 2]