nobu	2016-11-23 20:30:02 +0900 (Wed, 23 Nov 2016)

  New Revision: 56884

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=56884

  Log:
    test_fileutils.rb: Use primary group too
    
    * test/fileutils/test_fileutils.rb (TestFileUtils#setup): Use
      primary group as well as supplementary groups.  based on the
      patch by V?\195?\173t Ondruch at [ruby-core:78053].  [Bug #12910]
    
    It might happen in certain environments (systemd-nspawn) that
    process has no supplementary groups, but primary groups should be
    enough to pass most of the tests.

  Modified files:
    trunk/test/fileutils/test_fileutils.rb
Index: test/fileutils/test_fileutils.rb
===================================================================
--- test/fileutils/test_fileutils.rb	(revision 56883)
+++ test/fileutils/test_fileutils.rb	(revision 56884)
@@ -142,7 +142,7 @@ class TestFileUtils < Test::Unit::TestCa https://github.com/ruby/ruby/blob/trunk/test/fileutils/test_fileutils.rb#L142
 
   def setup
     @prevdir = Dir.pwd
-    @groups = Process.groups if have_file_perm?
+    @groups = [Process.gid] | Process.groups if have_file_perm?
     tmproot = @tmproot = Dir.mktmpdir "fileutils"
     Dir.chdir tmproot
     my_rm_rf 'data'; mymkdir 'data'

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