[ruby-core:71724] [Ruby trunk - Bug #11613] test_aspawn_too_long_path creates too many processes

Issue #11613 has been updated by Tomoyuki Chikanaga.

Backport changed from 2.0.0: REQUIRED, 2.1: DONE, 2.2: REQUIRED to 2.0.0: REQUIRED, 2.1: DONE, 2.2: DONE

Backporrted r52222,r52229,r52273,r52277,r52357 into `ruby_2_2` branch at r52779.

----------------------------------------
Bug #11613: test_aspawn_too_long_path creates too many processes
https://bugs.ruby-lang.org/issues/11613#change-55130

* Author: Yui NARUSE
* Status: Closed
* Priority: Normal
* Assignee: 
* ruby -v: 
* Backport: 2.0.0: REQUIRED, 2.1: DONE, 2.2: DONE
----------------------------------------
At least on FreeBSD, spawn("echo|echo|echo|echo|echo|echo|echo| ...20000 times") success and create 20000 zombie processes.
To prevent this you can add rlimit_nproc: 1 because it tests sh itself, don't test spawned echos.

```diff
diff --git a/test/ruby/test_process.rb b/test/ruby/test_process.rb
index 32dcaed..7877171 100644
--- a/test/ruby/test_process.rb
+++ b/test/ruby/test_process.rb
@@ -1600,7 +1600,7 @@ class TestProcess < Test::Unit::TestCase
       assert_raise(*exs, mesg) do
         begin
           loop do
-            Process.spawn(cmds.join(sep), [STDOUT, STDERR]=>File::NULL)
+            Process.spawn(cmds.join(sep), [STDOUT, STDERR]=>File::NULL, rlimit_nproc: 1)
             min = [cmds.size, min].max
             cmds *= 100
           end
```



-- 
https://bugs.ruby-lang.org/