diff --git a/docs/README.md b/docs/README.md
index 06588bf..0b01d1c 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -1 +1,5 @@
 # utils
+
+> 2018-03-31
+
+- 文档：https://searchfe.github.io/utils/
\ No newline at end of file
diff --git a/karma.conf.js b/karma.conf.js
new file mode 100644
index 0000000..b72d19d
--- /dev/null
+++ b/karma.conf.js
@@ -0,0 +1,87 @@
+// Karma configuration
+// Generated on Wed Apr 04 2018 00:03:37 GMT+0800 (CST)
+
+module.exports = function(config) {
+  config.set({
+
+    // base path that will be used to resolve all patterns (eg. files, exclude)
+    basePath: './',
+
+
+    // frameworks to use
+    // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
+    frameworks: ['mocha', 'requirejs', 'chai-as-promised', 'chai-sinon'],
+
+
+    // list of files / patterns to load in the browser
+    files: [
+        'test-main.js',
+        {pattern: 'src/**/*.js', included: false},
+        {pattern: 'amd_modules/**/*.js', included: false},
+        {pattern: 'test/**/*.js', included: false}
+    ],
+
+
+    // list of files to exclude
+    exclude: [
+        '**/*.swp'
+    ],
+
+
+    // preprocess matching files before serving them to the browser
+    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
+    preprocessors: {
+        // source files, that you wanna generate coverage for
+        // do not include tests or libraries
+        // (these files will be instrumented by Istanbul)
+        'src/**/*.js': ['coverage']
+    },
+
+
+    // test results reporter to use
+    // possible values: 'dots', 'progress'
+    // available reporters: https://npmjs.org/browse/keyword/karma-reporter
+    reporters: ['mocha'],
+    coverageReporter: {
+        reporters: [
+            {
+                type: 'text-summary'
+            }, {
+                type: 'lcov',
+                dir: 'coverage/'
+            }
+        ]
+    },
+
+
+    // web server port
+    port: 9876,
+
+
+    // enable / disable colors in the output (reporters and logs)
+    colors: true,
+
+
+    // level of logging
+    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
+    logLevel: config.LOG_INFO,
+
+
+    // enable / disable watching file and executing tests whenever any file changes
+    autoWatch: true,
+
+
+    // start these browsers
+    // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
+    browsers: ['ChromeHeadless'],
+
+
+    // Continuous Integration mode
+    // if true, Karma captures browsers, runs the tests and exits
+    singleRun: true,
+
+    // Concurrency level
+    // how many browser should be started simultaneous
+    concurrency: Infinity
+  })
+}
diff --git a/package.json b/package.json
index 44fc038..dfc8968 100644
--- a/package.json
+++ b/package.json
@@ -15,5 +15,27 @@
   "bugs": {
     "url": "https://github.com/searchfe/utils/issues"
   },
-  "homepage": "https://github.com/searchfe/utils#readme"
+  "homepage": "https://github.com/searchfe/utils#readme",
+  "devDependencies": {
+    "chai": "^3.5.0",
+    "chai-as-promised": "^5.3.0",
+    "karma": "^2.0.0",
+    "karma-chai": "^0.1.0",
+    "karma-chai-as-promised": "^0.1.2",
+    "karma-chai-sinon": "^0.1.5",
+    "karma-chrome-launcher": "^2.2.0",
+    "karma-coverage": "^1.1.1",
+    "karma-coveralls": "^1.1.2",
+    "karma-firefox-launcher": "^1.1.0",
+    "karma-html-reporter": "^0.2.7",
+    "karma-mocha": "^1.1.1",
+    "karma-mocha-reporter": "^2.0.4",
+    "karma-opera-launcher": "^1.0.0",
+    "karma-requirejs": "^1.1.0",
+    "karma-safari-launcher": "^1.0.0",
+    "mocha": "^3.2.0",
+    "requirejs": "^2.3.5",
+    "sinon": "^2.1.0",
+    "sinon-chai": "^2.8.0"
+  }
 }
diff --git a/src/index.js b/src/index.js
index e69de29..10e16b2 100644
--- a/src/index.js
+++ b/src/index.js
@@ -0,0 +1,16 @@
+define(function() {
+
+    function Browser () {
+        this._name = '';
+    };
+
+    Browser.prototype._getBrowserName = function (ua) {
+        var ua = ua || navigator.userAgent;
+        if (ua.indexOf('QQBrowser') > -1) {
+            this._name = 'qq';
+        }
+    }
+
+    return Browser;
+
+});
\ No newline at end of file
diff --git a/test-main.js b/test-main.js
new file mode 100644
index 0000000..11547e8
--- /dev/null
+++ b/test-main.js
@@ -0,0 +1,33 @@
+/**
+ * @file testMain test entry for karma
+ * @author harttle<yangjvn@126.com>
+ */
+var allTestFiles = [];
+var TEST_REGEXP = /test\/.*\.js$/i;
+
+// Get a list of all the test files to include
+Object.keys(window.__karma__.files).forEach(function (file) {
+    if (TEST_REGEXP.test(file)) {
+        // Normalize paths to RequireJS module names.
+        // If you require sub-dependencies of test files to be loaded as-is (requiring file extension)
+        // then do not normalize the paths
+        var normalizedTestModule = file.replace(/^\/base\/|\.js$/g, '');
+        allTestFiles.push(normalizedTestModule);
+    }
+});
+
+require.config({
+    // Karma serves files under /base, which is the basePath from your config file
+    baseUrl: '/base',
+
+    // dynamically load all test files
+    deps: allTestFiles,
+
+    // external AMD modules
+    paths: {
+        '@searchfe/assert': 'amd_modules/@searchfe/assert'
+    },
+
+    // we have to kickoff jasmine, as it is asynchronous
+    callback: window.__karma__.start
+});
diff --git a/test/index.js b/test/index.js
index e69de29..5c51cac 100644
--- a/test/index.js
+++ b/test/index.js
@@ -0,0 +1,12 @@
+define(['src/index'], function (Browser) {
+    describe('Browser', function () {
+        describe('new', function () {
+            it('should get qq browser name', function () {
+                var ua = 'Mozilla/5.0 (Linux; U; Android 4.4.4; zh-cn; HUAWEI C8818 Build/HuaweiC8818) AppleWebKit/537.36 (KHTML, like Gecko)Version/4.0 MQQBrowser/5.8 Mobile Safari/537.36';
+                var browser = new Browser();
+                browser._getBrowserName(ua);
+                expect(browser._name).to.equal('qq');
+            });
+        });
+    });
+});