From 1c44f333ce4bb155c0c40eaf4b1fa5a88a1c3d17 Mon Sep 17 00:00:00 2001
From: wanglihui <lihui.wang@tulingdao.com>
Date: Thu, 28 Sep 2017 17:58:11 +0800
Subject: [PATCH 1/2] fixed error@context serailize error

---
 context.js | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/context.js b/context.js
index e729e45..03d2da9 100644
--- a/context.js
+++ b/context.js
@@ -49,8 +49,13 @@ Namespace.prototype.run = function (fn) {
     return context;
   }
   catch (exception) {
-    if (exception) {
-      exception[ERROR_SYMBOL] = context;
+    if (exception && !exception[ERROR_SYMBOL]) {
+      Object.defineProperty(exception, ERROR_SYMBOL, {
+        configurable: true,
+        enumerable: false,
+        writable: false,
+        value: context
+      });
     }
     throw exception;
   }
@@ -84,8 +89,13 @@ Namespace.prototype.bind = function (fn, context) {
       return fn.apply(this, arguments);
     }
     catch (exception) {
-      if (exception) {
-        exception[ERROR_SYMBOL] = context;
+      if (exception && !exception[ERROR_SYMBOL]) {
+        Object.defineProperty(exception, ERROR_SYMBOL, {
+          configurable: true,
+          enumerable: false,
+          writable: false,
+          value: context
+        });
       }
       throw exception;
     }

From 46c90f103927937a17d57f3c0ed21ecfd82d35a7 Mon Sep 17 00:00:00 2001
From: wanglihui <lihui.wang@tulingdao.com>
Date: Thu, 28 Dec 2017 11:39:50 +0800
Subject: [PATCH 2/2] fixed test error

---
 test/crypto.tap.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/crypto.tap.js b/test/crypto.tap.js
index 38426e5..bcd2cd6 100644
--- a/test/crypto.tap.js
+++ b/test/crypto.tap.js
@@ -60,7 +60,7 @@ if (crypto) {
       t.test("deflate", function (t) {
         namespace.run(function () {
           namespace.set('test', 42);
-          crypto.pbkdf2("s3cr3tz", "451243", 10, 40, function (err) {
+          crypto.pbkdf2("s3cr3tz", "451243", 10, 40, 'sha512', function (err) {
             if (err) throw err;
             t.equal(namespace.get('test'), 42, "mutated state was preserved");
             t.end();