[笔记]1.Karma前端TDD试水
起博主是电信行业的码农,在工作单位也搞搞单元测试和TDD了什么。目前对Web技术很感兴趣,尝试新的领域里面也试试看TDD. 这次要用TDD的方式要实现一个简单画图板功能,支持Chrome和Firefox。 准备工作安装Karmanpm install -g karma 墙内的朋友安装的时候可能会看到这样的错误 Downloading http://cdn.bitbucket.org/ariya/phantomjs/downloads/phantomjs-1.9.7-windows.zip Saving to C:TEMPphantomjsphantomjs-1.9.7-windows.zip events.js:72 throw er; // Unhandled 'error' event ^ Error: read ECONNRESET at errnoException (net.js:901:11) at TCP.onread (net.js:556:19) 这个时候需要自己手动下载一份 执行 我的配置文件和目录结构 ./ │ karma.conf.js ├─lib | └─test testwwp.js 启动karma,karma会启动你需要的浏览器,并执行case。不过我们还没有添加任何Case。 >karma start INFO [karma]: Karma v0.10.9 server started at http://localhost:9876/ INFO [launcher]: Starting browser Chrome INFO [launcher]: Starting browser Firefox WARN [launcher]: Chrome have not captured in 60000 ms,killing. WARN [launcher]: Firefox have not captured in 60000 ms,killing. INFO [launcher]: Trying to start Chrome again. INFO [launcher]: Trying to start Firefox again. INFO [Chrome 33.0.1750 (Windows 7)]: Connected on socket XSBr3JzPetUpruEbr30w INFO [Firefox 27.0.0 (Windows 7)]: Connected on socket LfejRTLN--KYyhSlr30x Chrome 33.0.1750 (Windows 7): Executed 0 of 0 ERROR (1.061 secs / 0 secs) Firefox 27.0.0 (Windows 7): Executed 0 of 0 ERROR (1.252 secs / 0 secs) 添加Case按照TDD的节奏,该写一个失败的Case了。 "use strict"; var expect = chai.expect; describe('fist test',function() { it('should failed',function() { expect(1).to.equal(2); }); }); Karma的配置文件加载了Mocha和Chai,在测试文件中就不需要像node.js一样 INFO [watcher]: Changed file "D:/git/karmatddpost/test/testwwp.js". Chrome 33.0.1750 (Windows 7) fist test should failed FAILED expected 1 to equal 2 AssertionError: expected 1 to equal 2 Firefox 27.0.0 (Windows 7) fist test should failed FAILED expected 1 to equal 2 Chrome 33.0.1750 (Windows 7): Executed 1 of 1 (1 FAILED) ERROR (0.357 secs / NaN secs) Firefox 27.0.0 (Windows 7): Executed 1 of 1 (1 FAILED) ERROR (0.383 secs / NaN secs) Karma的TDD的工作环境算是配置好了。接下来就可以开发简易画图板了。 捐赠如果您觉得本文对您有帮助,欢迎请作者一杯咖啡
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