lib/test/unit.rb: remove exact trace

* lib/test/unit.rb (MiniTest#run_test): remove exact trace and get rid
  of IndexError, which could caused by modified $@ sometimes.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35588 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 1 deletions

diff --git a/lib/test/unit.rb b/lib/test/unit.rb
index 85e6885fab..ed465e97a6 100644
--- a/lib/test/unit.rb
+++ b/lib/test/unit.rb
@@ -792,11 +792,12 @@ end
 
 class MiniTest::Unit::TestCase
   undef run_test
+  RUN_TEST_TRACE = "#{__FILE__}:#{__LINE__+3}:in `run_test'".freeze
   def run_test(name)
     progname, $0 = $0, "#{$0}: #{self.class}##{name}"
     self.__send__(name)
   ensure
-    $@[-caller.size, 1] = [] if $@
+    $@.delete(RUN_TEST_TRACE) if $@
     $0 = progname
   end
 end