nobu	2017-12-13 19:40:54 +0900 (Wed, 13 Dec 2017)

  New Revision: 61206

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=61206

  Log:
    test_process.rb: fix error when empty groups
    
    * test/ruby/test_process.rb (test_maxgroups): set one element at
      least get rid of ZeroDivisionError when no process groups.
      [ruby-core:84224] [Bug #14174]

  Modified files:
    trunk/test/ruby/test_process.rb
Index: test/ruby/test_process.rb
===================================================================
--- test/ruby/test_process.rb	(revision 61205)
+++ test/ruby/test_process.rb	(revision 61206)
@@ -1518,6 +1518,7 @@ class TestProcess < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_process.rb#L1518
     assert_kind_of(Integer, max)
     gs = Process.groups
     assert_operator(gs.size, :<=, max)
+    gs[0] ||= 0
     assert_raise(ArgumentError) {Process.groups = gs * (max / gs.size + 1)}
   end
 

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