kazu	2013-06-05 20:53:02 +0900 (Wed, 05 Jun 2013)

  New Revision: 41089

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=41089

  Log:
    add description of test in comment

  Modified files:
    trunk/test/fileutils/test_fileutils.rb

Index: test/fileutils/test_fileutils.rb
===================================================================
--- test/fileutils/test_fileutils.rb	(revision 41088)
+++ test/fileutils/test_fileutils.rb	(revision 41089)
@@ -1227,6 +1227,9 @@ class TestFileUtils https://github.com/ruby/ruby/blob/trunk/test/fileutils/test_fileutils.rb#L1227
       Dir.rmdir '/'
     rescue => e
       assert_raise(e.class) {
+        # Dir.rmdir('') raises Errno::ENOENT.
+        # FileUtils#rmdir ignores it.
+        # And this test failed as expected.
         rmdir '/'
       }
     end

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