diff --git a/.travis.yml b/.travis.yml
index f76b5e9..deee765 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,19 +1,17 @@
 language: node_js
 
 node_js:
-  - 0.8
+  - "0.10"
 
 install:
-  - npm install mocha-browser nico
+  - npm install spm@ninja coveralls mocha
 
 before_script:
-  - git clone git://github.com/aralejs/nico-arale.git _theme
-  - node_modules/.bin/nico build --theme _theme -C _theme/nico.js
+  - node_modules/spm/bin/spm-install
+  - npm install
 
 script:
-  - node_modules/.bin/mocha-browser _site/tests/runner.html -S
+  - node_modules/spm/bin/spm-test
 
 after_success:
-  - npm install jscoverage coveralls
-  - node_modules/.bin/jscoverage --encoding=utf8 src _site/src-cov
-  - node_modules/.bin/mocha-browser _site/tests/runner.html?cov -S -R lcov | node_modules/.bin/coveralls
+  - node_modules/spm/bin/spm-test --coveralls | node_modules/.bin/coveralls
diff --git a/Makefile b/Makefile
index 25f43ff..c00fd45 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,10 @@
-THEME = $(HOME)/.spm/themes/arale
+version = $(shell cat package.json | grep version | awk -F'"' '{print $$4}')
 PROJ_ROOT=$(CURDIR)
 
 
+install:
+	@spm install
+
 build:
 	@spm build
 	@googlecc ${PROJ_ROOT}/src/seer-monitor.js ${PROJ_ROOT}/dist/seer-monitor.js
@@ -13,27 +16,19 @@ build:
 	@cat ${PROJ_ROOT}/src/seer-jsniffer.js >> ${PROJ_ROOT}/dist/seer-debug.js
 
 build-doc:
-	@nico build -v -C $(THEME)/nico.js
-
-debug:
-	@nico server -C $(THEME)/nico.js --watch debug
+	@spm doc build
 
 publish:
-	@spm publish -s alipay
-
-server:
-	@nico server -C $(THEME)/nico.js
+	@spm publish
+	@spm doc publish
+	@git tag $(version)
+	@git push origin $(version)
 
 watch:
-	@nico server -C $(THEME)/nico.js --watch
+	@spm doc watch
 
 publish-doc: clean build-doc
-	@rm -fr _site/sea-modules
-	@spm publish --doc _site -s alipay
-
-publish-pages: clean build-doc
-	@ghp-import _site
-	@git push origin gh-pages
+	@spm doc publish
 
 clean:
 	@rm -fr _site
@@ -42,7 +37,7 @@ clean:
 reporter = spec
 url = tests/runner.html
 test:
-	@mocha-phantomjs --reporter=${reporter} http://127.0.0.1:8000/${url}
+	@spm test
 
 coverage:
 	@rm -fr _site/src-cov
diff --git a/README.md b/README.md
index 3b1b9e2..c2c421a 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,12 @@
-# monitor
+
+# monitor: 通用前端监控采集脚本。
 
 ---
 
+[![spm package](http://spmjs.io/badge/zupu)](http://spmjs.io/package/zupu)
 [![Build Status](https://secure.travis-ci.org/totorojs/monitor.png?branch=master)](https://travis-ci.org/totorojs/monitor)
 [![Coverage Status](https://coveralls.io/repos/totorojs/monitor/badge.png?branch=master)](https://coveralls.io/r/totorojs/monitor)
 
-通用前端监控采集脚本。
 
 为了和整体的 totoro 质量体系保持一致，特为前端监控脚本取小名为 `chibi`，
 龙猫中最小的那只龙猫（chibi totoro）。
diff --git a/monitor.js b/monitor.js
new file mode 100644
index 0000000..e41fd87
--- /dev/null
+++ b/monitor.js
@@ -0,0 +1,211 @@
+
+var win = window;
+var doc = win.document;
+var loc = win.location;
+var M = win.monitor;
+
+var detector = require("detector");
+var Events = require("arale-events");
+
+// 避免未引用先行脚本抛出异常。
+if(!M){M = {};}
+if(!M._DATAS){M._DATAS = [];}
+if(!M._EVENTS){M._EVENTS = [];}
+
+var _events = M._EVENTS;
+var _evt = new Events();
+M.on = function(evt, handler){
+  _evt.on(evt, handler);
+};
+for(var i=0,l=_events.length; i<l; i++){
+  M.on(_events[i][0], _events[i][1]);
+}
+
+// 数据通信规范的版本。
+var version = "2.0";
+var protocol = String(loc.protocol).toLowerCase();
+// 不直接使用 `//magentmng.alipay.com`，是有 file 协议的场景。
+if(protocol !== "https:"){ protocol = "http:"; }
+var LOG_SERVER = protocol + "//magentmng.alipay.com/m.gif";
+
+var URLLength = detector.engine.trident ? 2083 : 8190;
+var url = path(loc.href);
+
+// UTILS -------------------------------------------------------
+
+function typeOf(obj){
+  return Object.prototype.toString.call(obj);
+}
+
+// 合并 oa, ob 两个对象的属性到新对象，不修改原有对象。
+// @param {Object} target, 目标对象。
+// @param {Object} object, 来源对象。
+// @return {Object} 返回目标对象，目标对象附带有来源对象的属性。
+function merge(oa, ob){
+  var result = {};
+
+  for(var i=0,o,l=arguments.length; i<l; i++){
+    o = arguments[i];
+    for(var k in o){
+      if(has(o, k)){
+        result[k] = o[k];
+      }
+    }
+  }
+  return result;
+}
+
+// simple random string.
+// @return {String}
+function rand(){
+  return (""+Math.random()).slice(-6);
+}
+
+// 获得资源的路径（不带参数和 hash 部分）
+// 另外新版 Arale 通过 nginx 提供的服务，支持类似：
+// > https://static.alipay.com/ar??arale.js,a.js,b.js
+// 的方式请求资源，需要特殊处理。
+//
+// @param {String} uri, 仅处理绝对路径。
+// @return {String} 返回 uri 的文件路径，不包含参数和 jsessionid。
+function path(uri){
+  if(undefined === uri || typeof(uri) !== "string"){return "";}
+  var len = uri.length;
+
+  var idxSessionID = uri.indexOf(";jsessionid=");
+  if(idxSessionID < 0){idxSessionID = len;}
+
+  // 旧版的合并 HTTP 服务。
+  var idxMin = uri.indexOf("/min/?");
+  if(idxMin >= 0){
+    idxMin = uri.indexOf("?", idxMin);
+  }
+  if(idxMin < 0){idxMin = len;}
+
+  var idxHash = uri.indexOf("#");
+  if(idxHash < 0){idxHash = len;}
+
+  var idxQ = uri.indexOf("??");
+  idxQ = uri.indexOf("?", idxQ < 0 ? 0 : idxQ+2);
+  if(idxQ < 0){idxQ = len;}
+
+  var idx = Math.min(idxSessionID, idxMin, idxHash, idxQ);
+
+  return idx < 0 ? uri : uri.substr(0, idx);
+}
+
+// 必要的字符串转义，保证发送的数据是安全的。
+// @param {String} str.
+// @return {String}
+function escapeString(str){
+  return String(str).replace(/(?:\r\n|\r|\n)/g,"<CR>");
+}
+
+// 将对象转为键值对参数字符串。
+function param(obj){
+  if(Object.prototype.toString.call(obj) !== "[object Object]"){
+    return "";
+  }
+  var p = [];
+  for(var k in obj){
+    if(!has(obj,k)){continue;}
+    if(typeOf(obj[k]) === "[object Array]"){
+      for(var i=0,l=obj[k].length; i<l; i++){
+        p.push(k + "=" + encodeURIComponent(escapeString(obj[k][i])));
+      }
+    }else{
+      p.push(k + "=" + encodeURIComponent(escapeString(obj[k])));
+    }
+  }
+  return p.join("&");
+}
+
+function has(obj, key){
+  return Object.prototype.hasOwnProperty.call(obj, key);
+}
+
+// /UTILS -------------------------------------------------------
+
+var DEFAULT_DATA = {
+  url: url,
+  ref: path(doc.referrer) || "-",
+  clnt: detector.device.name+"/"+detector.device.fullVersion+"|"+
+    detector.os.name+"/"+detector.os.fullVersion+"|"+
+    detector.browser.name+"/"+detector.browser.fullVersion+"|"+
+    detector.engine.name+"/"+detector.engine.fullVersion+
+    (detector.browser.compatible?"|c":""),
+  v: version
+};
+
+
+// 创建 HTTP GET 请求发送数据。
+// @param {String} url, 日志服务器 URL 地址。
+// @param {Object} data, 附加的监控数据。
+// @param {Function} callback
+function send(host, data, callback){
+  if(!callback){callback = function(){};}
+  if(!data){return callback();}
+
+  var d = param(data);
+  var url = host + (host.indexOf("?") < 0 ? "?" : "&") + d;
+  // 忽略超长 url 请求，避免资源异常。
+  if(url.length > URLLength){return callback();}
+
+  // @see http://www.javascriptkit.com/jsref/image.shtml
+  var img = new Image(1,1);
+  img.onload = img.onerror = img.onabort = function(){
+    callback();
+    img.onload = img.onerror = img.onabort = null;
+    img = null;
+  };
+
+  img.src = url;
+}
+
+var sending = false;
+/**
+ * 分时发送队列中的数据，避免 IE(6) 的连接请求数限制。
+ */
+function timedSend(){
+  if(sending){return;}
+
+  var e = M._DATAS.shift();
+  if(!e){return;}
+  sending = true;
+
+  // 理论上应该在收集异常消息时修正 file，避免连接带有参数。
+  // 但是收集部分在 seer 中，不适合放置大量的脚本。
+  if(e.profile === "jserror"){
+    e.file = path(e.file);
+  }
+
+  var data = merge(DEFAULT_DATA, e);
+  data.rnd = rand(); // 避免缓存。
+
+  // 触发事件返回 false 时，取消后续执行。
+  // 要求特定 profile 的事件，和全局事件都被触发。
+  var eventResult = _evt.trigger(e.profile, data);
+  eventResult = _evt.trigger("*", data) && eventResult;
+  if(!eventResult){
+    sending = false;
+    return timedSend();
+  }
+
+  send(LOG_SERVER, data, function(){
+    sending = false;
+    timedSend();
+  });
+}
+
+// timedSend 准备好后可以替换 push 方法，自动分时发送。
+var _push = M._DATAS.push;
+M._DATAS.push = function(){
+  _push.apply(M._DATAS, arguments);
+  timedSend();
+};
+
+// 主动发送已捕获的异常。
+timedSend();
+
+win.monitor = M;
+module.exports = M;
diff --git a/package.json b/package.json
index b59b67c..8a2ac04 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,6 @@
 {
-  "family": "alipay",
   "name": "monitor",
-  "version": "2.3.1",
+  "version": "2.4.0",
   "description": "通用前端监控脚本",
   "homepage": "https://github.com/totorojs/monitor",
   "author": "闲耘 <hotoo.cn@gmail.com>",
@@ -16,13 +15,16 @@
   "keywords": ["utility"],
   "licenses": "MIT",
   "scripts": {
-    "prepublish": "make build"
   },
   "spm": {
-    "output": ["monitor.js"],
-    "alias": {
-      "detector": "arale/detector/1.2.1/detector",
-      "events": "arale/events/1.1.0/events"
-    }
+    "main": "monitor.js",
+    "dependencies": {
+      "detector": "2.0.1",
+      "arale-events": "1.2.0"
+    },
+    "devDependencies": {
+      "expect.js": "0.3.1"
+    },
+    "tests": "tests/*-spec.js"
   }
 }
diff --git a/src/seer-jsniffer.js b/seer-jsniffer.js
similarity index 100%
rename from src/seer-jsniffer.js
rename to seer-jsniffer.js
diff --git a/src/seer-monitor.js b/seer-monitor.js
similarity index 100%
rename from src/seer-monitor.js
rename to seer-monitor.js
diff --git a/src/monitor.js b/src/monitor.js
deleted file mode 100644
index 7a56663..0000000
--- a/src/monitor.js
+++ /dev/null
@@ -1,214 +0,0 @@
-
-define(function(require, exports, module) {
-
-  var win = window;
-  var doc = win.document;
-  var loc = win.location;
-  var M = win.monitor;
-
-  var detector = require("detector");
-  var Events = require("events");
-
-  // 避免未引用先行脚本抛出异常。
-  if(!M){M = {};}
-  if(!M._DATAS){M._DATAS = [];}
-  if(!M._EVENTS){M._EVENTS = [];}
-
-  var _events = M._EVENTS;
-  var _evt = new Events();
-  M.on = function(evt, handler){
-    _evt.on(evt, handler);
-  };
-  for(var i=0,l=_events.length; i<l; i++){
-    M.on(_events[i][0], _events[i][1]);
-  }
-
-  // 数据通信规范的版本。
-  var version = "2.0";
-  var protocol = String(loc.protocol).toLowerCase();
-  // 不直接使用 `//magentmng.alipay.com`，是有 file 协议的场景。
-  if(protocol !== "https:"){ protocol = "http:"; }
-  var LOG_SERVER = protocol + "//magentmng.alipay.com/m.gif";
-
-  var URLLength = detector.engine.trident ? 2083 : 8190;
-  var url = path(loc.href);
-
-  // UTILS -------------------------------------------------------
-
-  function typeOf(obj){
-    return Object.prototype.toString.call(obj);
-  }
-
-  // 合并 oa, ob 两个对象的属性到新对象，不修改原有对象。
-  // @param {Object} target, 目标对象。
-  // @param {Object} object, 来源对象。
-  // @return {Object} 返回目标对象，目标对象附带有来源对象的属性。
-  function merge(oa, ob){
-    var result = {};
-
-    for(var i=0,o,l=arguments.length; i<l; i++){
-      o = arguments[i];
-      for(var k in o){
-        if(has(o, k)){
-          result[k] = o[k];
-        }
-      }
-    }
-    return result;
-  }
-
-  // simple random string.
-  // @return {String}
-  function rand(){
-    return (""+Math.random()).slice(-6);
-  }
-
-  // 获得资源的路径（不带参数和 hash 部分）
-  // 另外新版 Arale 通过 nginx 提供的服务，支持类似：
-  // > https://static.alipay.com/ar??arale.js,a.js,b.js
-  // 的方式请求资源，需要特殊处理。
-  //
-  // @param {String} uri, 仅处理绝对路径。
-  // @return {String} 返回 uri 的文件路径，不包含参数和 jsessionid。
-  function path(uri){
-    if(undefined === uri || typeof(uri) !== "string"){return "";}
-    var len = uri.length;
-
-    var idxSessionID = uri.indexOf(";jsessionid=");
-    if(idxSessionID < 0){idxSessionID = len;}
-
-    // 旧版的合并 HTTP 服务。
-    var idxMin = uri.indexOf("/min/?");
-    if(idxMin >= 0){
-      idxMin = uri.indexOf("?", idxMin);
-    }
-    if(idxMin < 0){idxMin = len;}
-
-    var idxHash = uri.indexOf("#");
-    if(idxHash < 0){idxHash = len;}
-
-    var idxQ = uri.indexOf("??");
-    idxQ = uri.indexOf("?", idxQ < 0 ? 0 : idxQ+2);
-    if(idxQ < 0){idxQ = len;}
-
-    var idx = Math.min(idxSessionID, idxMin, idxHash, idxQ);
-
-    return idx < 0 ? uri : uri.substr(0, idx);
-  }
-
-  // 必要的字符串转义，保证发送的数据是安全的。
-  // @param {String} str.
-  // @return {String}
-  function escapeString(str){
-    return String(str).replace(/(?:\r\n|\r|\n)/g,"<CR>");
-  }
-
-  // 将对象转为键值对参数字符串。
-  function param(obj){
-    if(Object.prototype.toString.call(obj) !== "[object Object]"){
-      return "";
-    }
-    var p = [];
-    for(var k in obj){
-      if(!has(obj,k)){continue;}
-      if(typeOf(obj[k]) === "[object Array]"){
-        for(var i=0,l=obj[k].length; i<l; i++){
-          p.push(k + "=" + encodeURIComponent(escapeString(obj[k][i])));
-        }
-      }else{
-        p.push(k + "=" + encodeURIComponent(escapeString(obj[k])));
-      }
-    }
-    return p.join("&");
-  }
-
-  function has(obj, key){
-    return Object.prototype.hasOwnProperty.call(obj, key);
-  }
-
-  // /UTILS -------------------------------------------------------
-
-  var DEFAULT_DATA = {
-    url: url,
-    ref: path(doc.referrer) || "-",
-    clnt: detector.device.name+"/"+detector.device.fullVersion+"|"+
-      detector.os.name+"/"+detector.os.fullVersion+"|"+
-      detector.browser.name+"/"+detector.browser.fullVersion+"|"+
-      detector.engine.name+"/"+detector.engine.fullVersion+
-      (detector.browser.compatible?"|c":""),
-    v: version
-  };
-
-
-  // 创建 HTTP GET 请求发送数据。
-  // @param {String} url, 日志服务器 URL 地址。
-  // @param {Object} data, 附加的监控数据。
-  // @param {Function} callback
-  function send(host, data, callback){
-    if(!callback){callback = function(){};}
-    if(!data){return callback();}
-
-    var d = param(data);
-    var url = host + (host.indexOf("?") < 0 ? "?" : "&") + d;
-    // 忽略超长 url 请求，避免资源异常。
-    if(url.length > URLLength){return callback();}
-
-    // @see http://www.javascriptkit.com/jsref/image.shtml
-    var img = new Image(1,1);
-    img.onload = img.onerror = img.onabort = function(){
-      callback();
-      img.onload = img.onerror = img.onabort = null;
-      img = null;
-    };
-
-    img.src = url;
-  }
-
-  var sending = false;
-  /**
-   * 分时发送队列中的数据，避免 IE(6) 的连接请求数限制。
-   */
-  function timedSend(){
-    if(sending){return;}
-
-    var e = M._DATAS.shift();
-    if(!e){return;}
-    sending = true;
-
-    // 理论上应该在收集异常消息时修正 file，避免连接带有参数。
-    // 但是收集部分在 seer 中，不适合放置大量的脚本。
-    if(e.profile === "jserror"){
-      e.file = path(e.file);
-    }
-
-    var data = merge(DEFAULT_DATA, e);
-    data.rnd = rand(); // 避免缓存。
-
-    // 触发事件返回 false 时，取消后续执行。
-    // 要求特定 profile 的事件，和全局事件都被触发。
-    var eventResult = _evt.trigger(e.profile, data);
-    eventResult = _evt.trigger("*", data) && eventResult;
-    if(!eventResult){
-      sending = false;
-      return timedSend();
-    }
-
-    send(LOG_SERVER, data, function(){
-      sending = false;
-      timedSend();
-    });
-  }
-
-  // timedSend 准备好后可以替换 push 方法，自动分时发送。
-  var _push = M._DATAS.push;
-  M._DATAS.push = function(){
-    _push.apply(M._DATAS, arguments);
-    timedSend();
-  };
-
-  // 主动发送已捕获的异常。
-  timedSend();
-
-  win.monitor = M;
-  module.exports = M;
-});
diff --git a/tests/monitor-spec.js b/tests/monitor-spec.js
index fd65bb9..2bbe5e5 100644
--- a/tests/monitor-spec.js
+++ b/tests/monitor-spec.js
@@ -1,162 +1,159 @@
-define(function(require) {
 
-  require("../src/seer-monitor");
+require("../seer-monitor");
 
-  var monitor = require("../src/monitor");
-  var expect = require("expect");
-  var util = require("./unitutil");
+var monitor = require("../monitor");
+var expect = require("expect.js");
+var util = require("./unitutil");
 
-  describe("monitor", function() {
+describe("monitor", function() {
 
-    it("monitor.log(seed)", function() {
-      expect(util.equals(monitor.log("seed"), {
-        profile: "log",
-        seed: "seed"
-      })).to.equal(true);
-    });
+  it("monitor.log(seed)", function() {
+    expect(util.equals(monitor.log("seed"), {
+      profile: "log",
+      seed: "seed"
+    })).to.equal(true);
+  });
 
-    it("monitor.log(seed, profile)", function() {
-      expect(util.equals(monitor.log("seed", "profile"), {
-        profile: "profile",
-        seed: "seed"
-      })).to.equal(true);
-    });
+  it("monitor.log(seed, profile)", function() {
+    expect(util.equals(monitor.log("seed", "profile"), {
+      profile: "profile",
+      seed: "seed"
+    })).to.equal(true);
+  });
 
-    it("monitor.log(object)", function() {
-      expect(util.equals(monitor.log({a:1, b:true}), {
-        profile: "log",
-        a: 1,
-        b: true
-      })).to.equal(true);
-    });
+  it("monitor.log(object)", function() {
+    expect(util.equals(monitor.log({a:1, b:true}), {
+      profile: "log",
+      a: 1,
+      b: true
+    })).to.equal(true);
+  });
 
-    // FIXME
-    //it("monitor.log(object, profile)", function() {
-      //console.log(monitor.log({profile:"b"},"a"))
-      //expect(util.equals(monitor.log({a:1, b:true}, "profile"), {
-        //profile: "profile",
-        //a: 1,
-        //b: true
-      //})).to.equal(true);
-    //});
+  // FIXME
+  //it("monitor.log(object, profile)", function() {
+    //console.log(monitor.log({profile:"b"},"a"))
+    //expect(util.equals(monitor.log({a:1, b:true}, "profile"), {
+      //profile: "profile",
+      //a: 1,
+      //b: true
+    //})).to.equal(true);
+  //});
 
-    after(test_monitor_error)
+  after(test_monitor_error)
 
-  });
+});
 
 
-  function test_monitor_error(){
+function test_monitor_error(){
 
-    require("../src/seer-jsniffer");
+  require("../seer-jsniffer");
 
-    describe("monitor: jsniffer", function() {
+  describe("monitor: jsniffer", function() {
 
-      it("monitor.error()", function() {
-        var ex = monitor.error(new Error("error message."));
+    it("monitor.error()", function() {
+      var ex = monitor.error(new Error("error message."));
 
-        expect(ex.msg).to.equal("error message.");
-        expect(ex.profile).to.equal("jserror");
-        expect(ex.hasOwnProperty("file")).to.equal(true);
-        expect(ex.hasOwnProperty("line")).to.equal(true);
-        expect(ex.hasOwnProperty("col")).to.equal(true);
-        expect(ex.hasOwnProperty("num")).to.equal(true);
-        expect(ex.hasOwnProperty("type")).to.equal(true);
-        expect(ex.hasOwnProperty("stack")).to.equal(true);
-        expect(ex.hasOwnProperty("lost")).to.equal(true);
-        expect(ex.hasOwnProperty("lang")).to.equal(true);
-        expect(ex.uv).to.equal(1);
-      });
+      expect(ex.msg).to.equal("error message.");
+      expect(ex.profile).to.equal("jserror");
+      expect(ex.hasOwnProperty("file")).to.equal(true);
+      expect(ex.hasOwnProperty("line")).to.equal(true);
+      expect(ex.hasOwnProperty("col")).to.equal(true);
+      expect(ex.hasOwnProperty("num")).to.equal(true);
+      expect(ex.hasOwnProperty("type")).to.equal(true);
+      expect(ex.hasOwnProperty("stack")).to.equal(true);
+      expect(ex.hasOwnProperty("lost")).to.equal(true);
+      expect(ex.hasOwnProperty("lang")).to.equal(true);
+      expect(ex.uv).to.equal(1);
+    });
 
-      it("monitor.error() repeat, without uv.", function() {
-        var ex1 = monitor.error(new Error("error message."));
-
-        expect(ex1.msg).to.equal("error message.");
-        expect(ex1.profile).to.equal("jserror");
-        expect(ex1.hasOwnProperty("file")).to.equal(true);
-        expect(ex1.hasOwnProperty("line")).to.equal(true);
-        expect(ex1.hasOwnProperty("col")).to.equal(true);
-        expect(ex1.hasOwnProperty("num")).to.equal(true);
-        expect(ex1.hasOwnProperty("type")).to.equal(true);
-        expect(ex1.hasOwnProperty("stack")).to.equal(true);
-        expect(ex1.hasOwnProperty("lost")).to.equal(true);
-        expect(ex1.hasOwnProperty("lang")).to.equal(true);
-        expect(ex1.hasOwnProperty("uv")).to.equal(false);
-      });
+    it("monitor.error() repeat, without uv.", function() {
+      var ex1 = monitor.error(new Error("error message."));
+
+      expect(ex1.msg).to.equal("error message.");
+      expect(ex1.profile).to.equal("jserror");
+      expect(ex1.hasOwnProperty("file")).to.equal(true);
+      expect(ex1.hasOwnProperty("line")).to.equal(true);
+      expect(ex1.hasOwnProperty("col")).to.equal(true);
+      expect(ex1.hasOwnProperty("num")).to.equal(true);
+      expect(ex1.hasOwnProperty("type")).to.equal(true);
+      expect(ex1.hasOwnProperty("stack")).to.equal(true);
+      expect(ex1.hasOwnProperty("lost")).to.equal(true);
+      expect(ex1.hasOwnProperty("lang")).to.equal(true);
+      expect(ex1.hasOwnProperty("uv")).to.equal(false);
+    });
 
-      it("try/catch: monitor.error()", function() {
-        try{
-          throw new Error("error message ii.");
-        }catch(ex){
-          var ex2 = monitor.error(ex);
-
-          expect(ex2.msg).to.equal("error message ii.");
-          expect(ex2.profile).to.equal("jserror");
-          expect(ex2.hasOwnProperty("file")).to.equal(true);
-          expect(ex2.hasOwnProperty("line")).to.equal(true);
-          expect(ex2.hasOwnProperty("col")).to.equal(true);
-          expect(ex2.hasOwnProperty("num")).to.equal(true);
-          expect(ex2.hasOwnProperty("type")).to.equal(true);
-          expect(ex2.hasOwnProperty("stack")).to.equal(true);
-          expect(ex2.hasOwnProperty("lost")).to.equal(true);
-          expect(ex2.hasOwnProperty("lang")).to.equal(true);
-          expect(ex2.uv).to.equal(1);
-        }
-      });
+    it("try/catch: monitor.error()", function() {
+      try{
+        throw new Error("error message ii.");
+      }catch(ex){
+        var ex2 = monitor.error(ex);
+
+        expect(ex2.msg).to.equal("error message ii.");
+        expect(ex2.profile).to.equal("jserror");
+        expect(ex2.hasOwnProperty("file")).to.equal(true);
+        expect(ex2.hasOwnProperty("line")).to.equal(true);
+        expect(ex2.hasOwnProperty("col")).to.equal(true);
+        expect(ex2.hasOwnProperty("num")).to.equal(true);
+        expect(ex2.hasOwnProperty("type")).to.equal(true);
+        expect(ex2.hasOwnProperty("stack")).to.equal(true);
+        expect(ex2.hasOwnProperty("lost")).to.equal(true);
+        expect(ex2.hasOwnProperty("lang")).to.equal(true);
+        expect(ex2.uv).to.equal(1);
+      }
+    });
 
-      it("try/catch: monitor.error() repeat, without uv.", function() {
-        try{
-          throw new Error("error message ii.");
-        }catch(ex){
-          var ex3 = monitor.error(ex);
-
-          expect(ex3.msg).to.equal("error message ii.");
-          expect(ex3.profile).to.equal("jserror");
-          expect(ex3.hasOwnProperty("file")).to.equal(true);
-          expect(ex3.hasOwnProperty("line")).to.equal(true);
-          expect(ex3.hasOwnProperty("col")).to.equal(true);
-          expect(ex3.hasOwnProperty("num")).to.equal(true);
-          expect(ex3.hasOwnProperty("type")).to.equal(true);
-          expect(ex3.hasOwnProperty("stack")).to.equal(true);
-          expect(ex3.hasOwnProperty("lost")).to.equal(true);
-          expect(ex3.hasOwnProperty("lang")).to.equal(true);
-          expect(ex3.hasOwnProperty("uv")).to.equal(false);
-        }
-      });
+    it("try/catch: monitor.error() repeat, without uv.", function() {
+      try{
+        throw new Error("error message ii.");
+      }catch(ex){
+        var ex3 = monitor.error(ex);
+
+        expect(ex3.msg).to.equal("error message ii.");
+        expect(ex3.profile).to.equal("jserror");
+        expect(ex3.hasOwnProperty("file")).to.equal(true);
+        expect(ex3.hasOwnProperty("line")).to.equal(true);
+        expect(ex3.hasOwnProperty("col")).to.equal(true);
+        expect(ex3.hasOwnProperty("num")).to.equal(true);
+        expect(ex3.hasOwnProperty("type")).to.equal(true);
+        expect(ex3.hasOwnProperty("stack")).to.equal(true);
+        expect(ex3.hasOwnProperty("lost")).to.equal(true);
+        expect(ex3.hasOwnProperty("lang")).to.equal(true);
+        expect(ex3.hasOwnProperty("uv")).to.equal(false);
+      }
+    });
 
 
-      after(test_monitor_on);
+    after(test_monitor_on);
 
-    });
-  }
+  });
+}
 
 
-  function test_monitor_on(){
-    describe("monitor.on", function(){
+function test_monitor_on(){
+  describe("monitor.on", function(){
 
-      function funcError(meta){
-        expect(meta.profile).to.equals("jserror");
-        expect(meta.msg).to.equals("test error message.");
-      }
+    function funcError(meta){
+      expect(meta.profile).to.equals("jserror");
+      expect(meta.msg).to.equals("test error message.");
+    }
 
-      monitor.on("log", function(meta){
-        it("monitor.on('log')", function() {
-          expect("test").to.equal(meta.seed);
-        });
+    monitor.on("log", function(meta){
+      it("monitor.on('log')", function() {
+        expect("test").to.equal(meta.seed);
       });
-      monitor.log("test");
+    });
+    monitor.log("test");
 
-      it("monitor.on('jserror')", function() {
-        monitor.on("jserror", function(meta){
-          expect(meta.profile).to.equal("jserror");
-          expect("test error message.").to.equal(meta.msg);
-        });
+    it("monitor.on('jserror')", function() {
+      monitor.on("jserror", function(meta){
+        expect(meta.profile).to.equal("jserror");
+        expect("test error message.").to.equal(meta.msg);
       });
-      try{
-        throw new Error("test error message.");
-      }catch(ex){
-        monitor.error(ex);
-      }
     });
-  }
-
-});
+    try{
+      throw new Error("test error message.");
+    }catch(ex){
+      monitor.error(ex);
+    }
+  });
+}