print nothing if tests does not exist

bin/run_test_script

@@ -5,6 +5,10 @@
 
 HERE=`dirname $0`
 
+if [ ! -f $HERE/../tests/mongo-qa/$1 ] ; then
+    exit 0
+fi
+
 begintime=`date`
 ruby $HERE/../tests/mongo-qa/$1 >> $2
 exitval=$?

tests/mongo-qa/circular

@@ -1,20 +0,0 @@
-#!/usr/bin/env ruby
-
-require File.join(File.dirname(__FILE__), '_common.rb')
-db = Mongo.new(DEFAULT_HOST, DEFAULT_PORT).db(DEFAULT_DB)
-
-if __FILE__ == $0
-  %w(a b c).each { |name| db.drop_collection(name) }
-end
-
-colla = db.collection('a')
-collb = db.collection('b')
-collc = db.collection('c')
-
-colla.insert('c' => 'b')
-collb.insert('c' => 1)
-
-x_id = ObjectID.new
-x_dbref = DBRef.new(nil, 'thiz', db, 'c', x_id)
-x = {'_id' => x_id, 'that' => 2, 'thiz' => x_dbref}
-collc.insert(x)