ruby-dev

たまに、test_cp_r(TestFileUtils) が失敗することがあります。

Z:akr@boron% zgrep test_cp_r *.gz
20041108-160243.gz:test_cp_r(TestFileUtils)
20041108-160243.gz:     ./fileutils/test_fileutils.rb:238:in `test_cp_r'
20041108-160243.gz:     ./fileutils/test_fileutils.rb:237:in `test_cp_r']:
20041110-163256.gz:test_cp_r(TestFileUtils)
20041110-163256.gz:     ./fileutils/test_fileutils.rb:238:in `test_cp_r'
20041110-163256.gz:     ./fileutils/test_fileutils.rb:237:in `test_cp_r']:
20041212-002547.gz:test_cp_r(TestFileUtils)
20041212-002547.gz:     ./test/fileutils/test_fileutils.rb:238:in `test_cp_r'
20041212-002547.gz:     ./test/fileutils/test_fileutils.rb:237:in `test_cp_r']:

ふと追跡してみた所、次のように sleep 2 をいれると確実に失敗するようになりました。

Index: test/fileutils/test_fileutils.rb
===================================================================
RCS file: /src/ruby/test/fileutils/test_fileutils.rb,v
retrieving revision 1.26
diff -u -p -r1.26 test_fileutils.rb
--- test/fileutils/test_fileutils.rb	4 Dec 2004 12:29:55 -0000	1.26
+++ test/fileutils/test_fileutils.rb	26 Dec 2004 12:01:13 -0000
@@ -228,6 +228,7 @@ end
   end
 
   def test_cp_r
+    sleep 2
     cp_r 'data', 'tmp'
     TARGETS.each do |fname|
       assert_same_file fname, "tmp/#{fname}"

% ./ruby test/runner.rb test/fileutils/test_fileutils.rb
Loaded suite test_fileutils.rb
Started
.....F.............
Finished in 2.717315 seconds.

  1) Failure:
test_cp_r(TestFileUtils)
    [/home/akr/ruby/tmp-ruby/ruby/test/fileutils/fileasserts.rb:17:in `assert_same_entry'
     /home/akr/ruby/tmp-ruby/ruby/test/fileutils/fileasserts.rb:16:in `_wrap_assertion'
     /home/akr/ruby/tmp-ruby/ruby/test/fileutils/fileasserts.rb:16:in `assert_same_entry'
     ./test/fileutils/test_fileutils.rb:239:in `test_cp_r'
     ./test/fileutils/test_fileutils.rb:238:in `each'
     ./test/fileutils/test_fileutils.rb:238:in `test_cp_r']:
entry data/a != tmp/data/a

19 tests, 242 assertions, 1 failures, 0 errors

sleep の挿入で失敗するようになるのは変なのではないでしょうか。
-- 
[田中 哲][たなか あきら][Tanaka Akira]

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