add tag v1_8_5_91v1_8_5_91

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_8_5_91@13046 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 40 insertions, 0 deletions

diff --git a/ruby_1_8_5/lib/test/unit/util/backtracefilter.rb b/ruby_1_8_5/lib/test/unit/util/backtracefilter.rb
new file mode 100644
index 0000000000..7ebec2dfef
--- /dev/null
+++ b/ruby_1_8_5/lib/test/unit/util/backtracefilter.rb
@@ -0,0 +1,40 @@
+module Test
+  module Unit
+    module Util
+      module BacktraceFilter
+        TESTUNIT_FILE_SEPARATORS = %r{[\\/:]}
+        TESTUNIT_PREFIX = __FILE__.split(TESTUNIT_FILE_SEPARATORS)[0..-3]
+        TESTUNIT_RB_FILE = /\.rb\Z/
+        
+        def filter_backtrace(backtrace, prefix=nil)
+          return ["No backtrace"] unless(backtrace)
+          split_p = if(prefix)
+            prefix.split(TESTUNIT_FILE_SEPARATORS)
+          else
+            TESTUNIT_PREFIX
+          end
+          match = proc do |e|
+            split_e = e.split(TESTUNIT_FILE_SEPARATORS)[0, split_p.size]
+            next false unless(split_e[0..-2] == split_p[0..-2])
+            split_e[-1].sub(TESTUNIT_RB_FILE, '') == split_p[-1]
+          end
+          return backtrace unless(backtrace.detect(&match))
+          found_prefix = false
+          new_backtrace = backtrace.reverse.reject do |e|
+            if(match[e])
+              found_prefix = true
+              true
+            elsif(found_prefix)
+              false
+            else
+              true
+            end
+          end.reverse
+          new_backtrace = (new_backtrace.empty? ? backtrace : new_backtrace)
+          new_backtrace = new_backtrace.reject(&match)
+          new_backtrace.empty? ? backtrace : new_backtrace
+        end
+      end
+    end
+  end
+end