Node.js + mocha + webdriverjs:测试kill套件失败

Question

我正在测试一个使用Mocha和WebDriverJS的Web应用程序,或多或少在这里描述.测试通过后,一切都很好.但是,如果一个测试失败,套件中的其余测试将超时,并且运行器将在套件的末尾退出,而不关闭Webdriver实例.示例测试用例:

var assert = require('assert'),
    client = require("webdriverjs").remote({
        logLevel: 'silent'
    });

describe('Self-test', function() {

    before(function(done) {
        client
            .init()
            .url('http://www.wikipedia.org/', function() {
                done();
            });
    });

    after(function(done) {
        client.end(function() {
            done();
        });
    });

    // tests

    it('should fail properly', function(done) {
        client.getTitle(function(result) {
            assert(false, 'This should fail');
            done();
        });
    });

    it('should pass afterwards', function(done) {
        client.getTitle(function(result) {
            assert(true, 'This should still pass');
            done();
        });
    });

});

输出:

~> mocha  test/self-test.js

    Self-test
  1) should fail properly
  2) should pass afterwards
  3) "after all" hook

? 3 of 2 tests failed:

1) Self-test should fail properly:
   AssertionError: This should fail
    at null.<anonymous> (./test/self-test.js:24:17)
    at QueueItem (./node_modules/webdriverjs/lib/webdriverjs.js:242:15)
    at null.<anonymous> (./node_modules/webdriverjs/lib/commands/getTitle.js:12:6)
    at QueueItem (./node_modules/webdriverjs/lib/webdriverjs.js:242:15)
    at IncomingMessage.WebdriverJs.proxyResponse (./node_modules/webdriverjs/lib/webdriverjs.js:782:6)
    at IncomingMessage.EventEmitter.emit (events.js:115:20)
    at IncomingMessage._emitEnd (http.js:366:10)
    at HTTPParser.parserOnMessageComplete [as onMessageComplete] (http.js:149:23)
    at Socket.socketOnData [as ondata] (http.js:1366:20)
    at TCP.onread (net.js:402:27)

2) Self-test should pass afterwards:
   Error: timeout of 10000ms exceeded
    at Object.<anonymous> (./node_modules/mocha/lib/runnable.js:158:14)
    at Timer.list.ontimeout (timers.js:101:19)

3) Self-test "after all" hook:
   Error: timeout of 10000ms exceeded
    at Object.<anonymous> (./node_modules/mocha/lib/runnable.js:158:14)
    at Timer.list.ontimeout (timers.js:101:19)

据我所知,这是因为WebDriverJS队列在测试失败时会停止.有没有什么办法解决这一问题？即使对于本地命令行测试,它也是次优的,并且它使得自动和/或在后台运行测试变得难以进行.

更新:我认为我可以通过为每个测试实例化一个新客户端来修复队列失败,但这会使事情变得更慢(因为WebDriver实例需要每次都从头开始)并且会使WebDriver进程无法停止测试失败.理想情况下,我喜欢Soda提供的结构,其中队列中某处的故障跳到队列的末尾然后抛出错误以供测试框架捕获.

Answer 1

如果每个测试都依赖于 WebDriverJS 队列的状态，则应该使用beforeEach()和来设置和拆卸，而afterEach()不是使用 和。before()after()