parallel.rb: expand path

* test/lib/test/unit/parallel.rb (run): expand the file name to be
  loaded, so that relative paths work in parallel mode.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49139 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Sun Jan  4 14:02:37 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/lib/test/unit/parallel.rb (run): expand the file name to be
+	  loaded, so that relative paths work in parallel mode.
+
 Sun Jan  4 13:36:56 2015  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
 
 	* test/test_tempfile.rb: use assert_file for more descriptive message.

test/lib/test/unit/parallel.rb

@@ -112,7 +112,7 @@ module Test
               suites = MiniTest::Unit::TestCase.test_suites
 
               begin
-                require $1
+                require File.realpath($1)
               rescue LoadError
                 _report "after", Marshal.dump([$1, ProxyError.new($!)])
                 _report "ready"