由于Firefox强制我,我正在重写我的扩展使用WebExtension API,即Chrome的扩展API。我想要进行自动化测试。到目前为止,我已经试过这样:如何测试Chrome扩展程序/ Firefox WebExtension代码?
我有一个package.json
,使npm
将安装depedencies:
{
"name": "extension-api-tests",
"version": "0.0.1",
"scripts": {
"test": "karma start"
},
"devDependencies": {
"karma": "^1.3.0",
"karma-firefox-launcher": "^1.0.0",
"karma-mocha": "^1.3.0",
"karma-sinon-chrome": "^0.2.0",
"mocha": "^3.1.2",
"sinon-chrome": "^2.1.2"
}
}
我有一个karma.conf.js
设置一个测试运行:
module.exports = function(config) {
config.set({
frameworks: ['mocha', 'sinon-chrome'],
files: ['test.js'],
reporters: ['dots'],
autoWatch: false,
browsers: ['Firefox'],
singleRun: true,
concurrency: Infinity,
});
};
而且我已经得到了基本测试:
describe('my frustration',() => {
it('works when it uses no APIs', done => {
done();
});
it('should respond to messages!', done => {
console.log('message test starting');
chrome.runtime.onMessage.addListener((message, sender, sendResponse) => {
console.log('received message');
sendResponse(true);
});
chrome.runtime.sendMessage({}, result => {
console.log('received response to message');
done();
});
});
it('should open a tab!', done => {
console.log('tab test starting');
chrome.tabs.create({
'active': true,
'url': 'http://www.example.com/',
}, tab => {
console.log('created a tab:', tab);
done();
});
});
});
这是当然是减少测试用例。当我运行npm test
,我得到(略有删节):
> [email protected] test .../ext-test
> karma start
25 07 2017 11:57:10.395:INFO [karma]: Karma v1.7.0 server started at http://0.0.0.0:9876/
25 07 2017 11:57:10.397:INFO [launcher]: Launching browser Firefox with unlimited concurrency
25 07 2017 11:57:10.404:INFO [launcher]: Starting browser Firefox
25 07 2017 11:57:14.687:INFO [Firefox 54.0.0 (Ubuntu 0.0.0)]: Connected on socket iIjNRRQfzWj68_GNAAAA with id 42440302
.
LOG: 'message test starting'
Firefox 54.0.0 (Ubuntu 0.0.0) my frustration should respond to messages! FAILED
Timeout of 2000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves.
LOG: 'tab test starting'
Firefox 54.0.0 (Ubuntu 0.0.0) my frustration should open a tab! FAILED
Timeout of 2000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves.
Firefox 54.0.0 (Ubuntu 0.0.0): Executed 3 of 3 (2 FAILED) (3.998 secs/4.001 secs)
npm ERR! Test failed. See above for more details.
我的测试中,其尝试使用扩展API全部失败。它没有定义而不是(例如)chrome.runtime
(但是,如果我从karma.conf.js中删除'sinon-chrome'
),所以我相信我已经设置了sinon。但API从不做任何事情,从不工作。我想测试的代码是全部关于通过这些API传递数据(特别是作为消息,穿过铬/内容边界)。
无法评论主要问题,但是当你解决它时,请注意'runtime.sendMessage'不会自Chrome 49以后发送到它自己的页面/框架,并且显然在Firefox的所有版本中。 – wOxxOm
我*猜测* sinon提供的假冒行为不像真正的API,使测试成为可能。 – arantius
确实,sinon文档中的例子与您使用的直接调用完全不同。我不知道sinon,但不能说这是唯一支持的方法。 – wOxxOm