add node modules to repo

app/node_modules/mkdirp/test/race.js

@@ -0,0 +1,40 @@
+var mkdirp = require('../').mkdirp;
+var path = require('path');
+var fs = require('fs');
+var exists = fs.exists || path.exists;
+var test = require('tap').test;
+
+test('race', function (t) {
+    t.plan(6);
+    var ps = [ '', 'tmp' ];
+    
+    for (var i = 0; i < 25; i++) {
+        var dir = Math.floor(Math.random() * Math.pow(16,4)).toString(16);
+        ps.push(dir);
+    }
+    var file = ps.join('/');
+    
+    var res = 2;
+    mk(file, function () {
+        if (--res === 0) t.end();
+    });
+    
+    mk(file, function () {
+        if (--res === 0) t.end();
+    });
+    
+    function mk (file, cb) {
+        mkdirp(file, 0755, function (err) {
+            t.ifError(err);
+            exists(file, function (ex) {
+                t.ok(ex, 'file created');
+                fs.stat(file, function (err, stat) {
+                    t.ifError(err);
+                    t.equal(stat.mode & 0777, 0755);
+                    t.ok(stat.isDirectory(), 'target not a directory');
+                    if (cb) cb();
+                });
+            })
+        });
+    }
+});