[ruby-core:51558] [ruby-trunk - Bug #7721] test_too_long_path2(TestProcess) fails on mingw32

Issue #7721 has been updated by phasis68 (Heesob Park).


After some inspections, I found this failure occurs not on a very long path but on a sufficiently long path with many preloaded test sets.

On such a condition, acp_to_wstr or mbstr_to_wstr function returns NULL with the failure of malloc.

Here is a workaround patch:
diff --git a/win32.c b/win32.c.new
index 3b82766..4822f63 100644
--- a/win32.c
+++ b/win32.c.new
@@ -1126,7 +1126,7 @@ CreateChild(const WCHAR *cmd, const WCHAR *prog, SECURITY_ATTRIBUTES *psa,
 
     dwCreationFlags |= NORMAL_PRIORITY_CLASS;
 
-    if (lstrlenW(cmd) > 32767) {
+    if (cmd==NULL || lstrlenW(cmd) > 32767) {
 	child->pid = 0;		/* release the slot */
 	errno = E2BIG;
 	return NULL;

----------------------------------------
Bug #7721: test_too_long_path2(TestProcess) fails on mingw32
https://bugs.ruby-lang.org/issues/7721#change-35521

Author: phasis68 (Heesob Park)
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 
ruby -v: ruby 2.0.0dev (2013-01-21 trunk 38892) [i386-mingw32]


[ 6319/11317] TestProcess#test_too_long_path2Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\work\snapshot-mg32>exit
 = 8.03 s
 33) Failure:
test_too_long_path2(TestProcess) [C:/work/snapshot-mg32/test/ruby/test_process.rb:1393]:
[ruby-core:34833].
[Errno::ENOENT, Errno::E2BIG] expected but nothing was raised.

This failure is also mentioned at https://bugs.ruby-lang.org/issues/7710#note-3



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