a little more robust check for autotest/textmate/etc

init.rb

@@ -1,8 +1,9 @@
 if ENV['RAILS_ENV'] == 'test' && !%w{false none}.include?(ENV['BENCHMARK'])
-  while (pid ||= $$).to_i > 0
-    pid, *process = `ps -p #{pid} -o ppid -o args`.strip.split("\n").last.split
-    @autotest ||= process.join =~ /autotest|textmate|watch/i 
-  end 
-
-  require File.dirname(__FILE__) + "/lib/test_benchmark" unless @autotest
-end
+  processes = "ruby"
+  begin
+    pgid = `ps -p #{$$} -o pgid`.split("\n").last
+    processes = `ps -o command -g #{pgid}`
+  rescue StandardError;
+  end
+  require File.dirname(__FILE__) + "/lib/test_benchmark" unless processes =~ /autotest|textmate|watch/i
+end