From b28e5c369519aba28e25fbc42c096b8d464912ea Mon Sep 17 00:00:00 2001
From: Abd ar-Rahman Hamidi <bakhtiyor.h@gmail.com>
Date: Mon, 8 Apr 2013 15:16:33 +0500
Subject: [PATCH] Add TEST_DIRS enviroment for constrain test directories in
 rakefile

---
 railties/Rakefile | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/railties/Rakefile b/railties/Rakefile
index a9cb37776d..4789f41ad4 100644
--- a/railties/Rakefile
+++ b/railties/Rakefile
@@ -12,8 +12,9 @@ task :test => 'test:isolated'
 
 namespace :test do
   task :isolated do
-    dir = ENV["TEST_DIR"] || "**"
-    Dir["test/#{dir}/*_test.rb"].each do |file|
+    dirs = (ENV["TEST_DIR"] || ENV["TEST_DIRS"] || "**").split(",")
+    test_files = dirs.map { |dir| "test/#{dir}/*_test.rb" }
+    Dir[*test_files].each do |file|
       next true if file.include?("fixtures")
       dash_i = [
         'test',