Fix multithread issue in the test of r35391
pipe() uses threads and its reader thread may work before the writer writes "foob". On such case, the reader will raise error.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35396 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Added by naruse (Yui NARUSE) about 13 years ago
Fix multithread issue in the test of r35391
pipe() uses threads and its reader thread may work before the writer
writes "foob". On such case, the reader will raise error.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35396 b2dd03c8-39d4-4d8f-98ff-823fe69b080e