Use util._extend instead of the eval evil

Fix #31

fs.js

@@ -1,11 +1,5 @@
-// eeeeeevvvvviiiiiiillllll
-// more evil than monkey-patching the native builtin?
-// Not sure.
+// extend the builtin so that our monkeypatchery doesn't
+// muck with things not using graceful-fs
 
-var mod = require("module")
-var pre = '(function (exports, require, module, __filename, __dirname) { '
-var post = '});'
-var src = pre + process.binding('natives').fs + post
-var vm = require('vm')
-var fn = vm.runInThisContext(src)
-return fn(exports, require, module, __filename, __dirname)
+var util = require('util')
+module.exports = util._extend({}, require('fs'))

test/readdir-sort.js

@@ -14,7 +14,6 @@ test("readdir reorder", function (t) {
   g.readdir("whatevers", function (er, files) {
     if (er)
       throw er
-    console.error(files)
     t.same(files, [ "a", "b", "z" ])
     t.end()
   })

test/stat.js

@@ -0,0 +1,28 @@
+var test = require('tap').test
+var gfs = require('../graceful-fs.js')
+var fs = require('fs')
+
+var gstat, fstat
+
+test('gfs.stat', function (t) {
+  gfs.stat(__filename, function (er, st) {
+    if (er) throw er
+    gstat = st
+    t.ok(st instanceof gfs.Stats, 'should instanceof gfs.Stats')
+    t.end()
+  })
+})
+
+test('fs.stat', function (t) {
+  fs.stat(__filename, function (er, st) {
+    if (er) throw er
+    fstat = st
+    t.ok(st instanceof fs.Stats, 'should instanceof fs.Stats')
+    t.end()
+  })
+})
+
+test('stats should match', function (t) {
+  t.similar(gstat, fstat)
+  t.end()
+})