MOCHA_GREP

gistfile1.txt

diff --git a/grunt.js b/grunt.js
index 3412fd7..8b35d4a 100644
--- a/grunt.js
+++ b/grunt.js
@@ -1,6 +1,7 @@
 module.exports = function(grunt) {
 
     var shell = require('shelljs');
+    var grep = process.env['MOCHA_GREP'] || undefined;
 
     // Project configuration.
     grunt.initConfig({
@@ -49,7 +50,8 @@ module.exports = function(grunt) {
             options: {
                 timeout: 20000,
                 ignoreLeaks: true,
-                reporter: 'spec'
+                reporter: 'spec',
+                grep: grep
             }
         };
         grunt.config.set('simplemocha.' + module, config);
@@ -63,8 +65,7 @@ module.exports = function(grunt) {
             options: {
                 timeout: 20000,
                 ignoreLeaks: true,
-                reporter: 'spec',
-                grep: grep
+                reporter: 'spec'
             }
         };
         grunt.config.set('simplemocha.grep-' + grep, config);