0001-fs.writeFile-accepts-Buffers.patch

From f4554917d120b994022ed261bdbd4268c476cc0e Mon Sep 17 00:00:00 2001
From: Aaron Heckmann <aaron.heckmann@gmail.com>
Date: Wed, 16 Jun 2010 00:52:15 -0400
Subject: [PATCH] fs.writeFile accepts Buffers

---
 lib/fs.js                         |    4 +++-
 test/simple/test-fs-write-file.js |   21 ++++++++++++++++++++-
 2 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/lib/fs.js b/lib/fs.js
index dde6ac6..5ddbc22 100644
--- a/lib/fs.js
+++ b/lib/fs.js
@@ -384,7 +384,9 @@ fs.writeFile = function (path, data, encoding_, callback) {
     if (openErr) {
       if (callback) callback(openErr);
     } else {
-      var buffer = new Buffer(data, encoding);
+      var buffer = data instanceof Buffer 
+        ? data 
+        : new Buffer(data, encoding);
       writeAll(fd, buffer, callback);
     }
   });
diff --git a/test/simple/test-fs-write-file.js b/test/simple/test-fs-write-file.js
index cc0fdfa..14b9dcc 100644
--- a/test/simple/test-fs-write-file.js
+++ b/test/simple/test-fs-write-file.js
@@ -26,9 +26,28 @@ fs.writeFile(filename, s, function (e) {
   });
 });
 
+// test that writeFile accepts buffers
+filename2 = join(fixturesDir, 'test2.txt');
+buf = new Buffer(s, 'utf8');
+error('writing to ' + filename2);
+
+fs.writeFile(filename2, s, function (e) {
+  if (e) throw e;
+
+  ncallbacks++;
+  error('file2 written');
+
+  fs.readFile(filename2, function (e, buffer) {
+    if (e) throw e;
+    error('file2 read');
+    ncallbacks++;
+    assert.equal(buf.length, buffer.length);
+  });
+});
+
 
 process.addListener('exit', function () {
   error('done');
 
-  assert.equal(2, ncallbacks);
+  assert.equal(4, ncallbacks);
 });
\ No newline at end of file
-- 
1.6.3.3