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javascript - JEST : "Async callback was not invoked within the 5000ms timeout specified by jest.setTimeout.", 尽管已经配置

转载 作者:行者123 更新时间:2023-12-04 11:16:33 26 4
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在您指出之前,是的,我知道这似乎是多个问题的重复,例如;

  • JEST: Async callback was not invoked within the 5000ms timeout specified by jest.setTimeout
  • Got Timeout - Async callback was not invoked within the 5000ms timeout specified by jest.setTimeout

  • 但是,我实现了建议的所有 3 个修复;
  • 使用jest.setTimeout()在测试中设置异步超时
  • 使用test()的第三个参数传递一个扩展的异步超时限制
  • 调用done完成后的功能

  • 但是,在自动 linux 机器(Jenkins)上运行我的 jest 测试时,它仍然抛出相同的错误。另外,值得一提的是,这在我运行 NodeJS v10 的 MacOS 机器上运行良好,而自动化的 linux 机器运行 NodeJS V8.8.3(最新的 LTS 版本)

    这就是我的 Jest 测试的样子;
    const webdriverio = require('webdriverio');
    const options = {
    desiredCapabilities: {
    browserName: 'chrome',
    chromeOptions: {
    args: ["--no-sandbox", "disable-web-security", "--disable-dev-shm-usage"]
    }
    }
    };
    const client = webdriverio.remote(options);

    beforeEach(async () => {
    await client.init();
    })

    test('Google Search for WebdriverIO has correct title', async (done) => {
    jest.setTimeout(30000)
    await client.url('https://www.google.com/ncr');
    await client.setValue('input[name=q]', 'WebdriverIO');
    await client.click('input[value="Google Search"]');
    const title = await client.getTitle();
    expect(title).toBe('WebdriverIO - Google Search');
    done();
    }, 30000);

    afterEach(async () => {
    await client.end();
    });

    这是我尝试运行测试时得到的日志;
    09:57:19 > jest --config jest.config.js
    09:57:19
    09:57:20 Installing selenium server ...
    09:57:22 Starting selenium server ...
    09:57:23 Selenium server started ...
    09:57:29 FAIL jest/test/google.spec.js (5.874s)
    09:57:29 ��� Google Search for WebdriverIO has correct title (5016ms)
    09:57:29
    09:57:29 ��� Google Search for WebdriverIO has correct title
    09:57:29
    09:57:29 Timeout - Async callback was not invoked within the 5000ms timeout specified by jest.setTimeout.
    09:57:29
    09:57:29 at mapper (node_modules/jest-jasmine2/build/queue_runner.js:41:52)
    09:57:29
    09:57:29 ��� Google Search for WebdriverIO has correct title
    09:57:29
    09:57:29 A session id is required for this command but wasn't found in the response payload
    09:57:29
    09:57:29 at new RuntimeError (node_modules/webdriverio/build/lib/utils/ErrorHandler.js:143:12)
    09:57:29 at RequestHandler.createOptions (node_modules/webdriverio/build/lib/utils/RequestHandler.js:121:23)
    09:57:29 at RequestHandler.create (node_modules/webdriverio/build/lib/utils/RequestHandler.js:212:43)
    09:57:29 at Object.url (node_modules/webdriverio/build/lib/protocol/url.js:24:32)
    09:57:29 at Object.exec (node_modules/webdriverio/build/lib/helpers/safeExecute.js:28:24)
    09:57:29 at Object.resolve (node_modules/webdriverio/build/lib/webdriverio.js:191:29)
    09:57:29 at lastPromise.then.resolve.call.depth (node_modules/webdriverio/build/lib/webdriverio.js:486:32)
    09:57:29 at _fulfilled (node_modules/q/q.js:854:54)
    09:57:29 at self.promiseDispatch.done (node_modules/q/q.js:883:30)
    09:57:29 at Promise.promise.promiseDispatch (node_modules/q/q.js:816:13)
    09:57:29
    09:57:29 Test Suites: 1 failed, 1 total
    09:57:29 Tests: 1 failed, 1 total
    09:57:29 Snapshots: 0 total
    09:57:29 Time: 5.988s, estimated 7s
    09:57:29 Ran all test suites.
    09:57:29 Killing selenium server ...

    任何关于为什么它在我的本地机器上正常工作时可能会失败的想法将不胜感激。另外,我尝试设置 jest.setTimeout在我的 Jest 全局设置文件中,但它抛出 jest.setTimeout is not a function ;

    https://github.com/facebook/jest/issues/3788

    最佳答案

    我的测试中有类似的东西。我的测试在本地顺利通过,但在 GitHub Actions 上失败了。
    我的问题是,在本地,已经下载了测试工具(在我的例子中是内存中的 MongoDB。在你的例子中是 chrome 浏览器),但是在远程环境中,它们必须先下载。
    检查您的 Jenkins 日志以了解您下载 chrome 的环境,并且在下载达到 100% 之前测试失败。即使您没有发现,您在问题中发布的日志也有点暗示该方向,因为日志打印出超时设置为 5000ms ,即使您将第一次测试的超时设置为不同的值:

    Timeout - Async callback was not invoked within the 5000ms timeout specified by jest.setTimeout.
    这告诉我测试中超时的部分是 部分。测试前 .
    要解决这个问题,您需要专门为 beforeEach 添加更长的超时时间。函数,在其中初始化 webdriver。这样,在第一次测试中,当下载 chrome 时,您将有足够的时间完成下载 chrome。在接下来的测试中,这应该不是问题,因为 chrome 已经可用。
    还建议在 Jenkins 中主动下载 chrome\chromium 浏览器,以便在测试运行开始之前就可以使用它 .
    所以,我建议你试试这个:
    const webdriverio = require('webdriverio');
    const options = {
    desiredCapabilities: {
    browserName: 'chrome',
    chromeOptions: {
    args: ["--no-sandbox", "disable-web-security", "--disable-dev-shm-usage"]
    }
    }
    };
    const client = webdriverio.remote(options);

    beforeEach(async () => {
    await client.init();
    }, 30000) // <-- This is what you need. not the timeout in the actual test

    test('Google Search for WebdriverIO has correct title', async () => {
    jest.setTimeout(30000); // you can keep this if you think is needed,
    // but I'm pretty sure it's not
    await client.url('https://www.google.com/ncr');
    await client.setValue('input[name=q]', 'WebdriverIO');
    await client.click('input[value="Google Search"]');
    const title = await client.getTitle();
    expect(title).toBe('WebdriverIO - Google Search');
    });

    afterEach(async () => {
    await client.end();
    });
    Here's an example of an old run ,失败是因为内存数据库在超时之前没有完成下载。即使数据库尚未准备好使用,这也会导致测试开始。
    将超时添加到 my beforeEach functions 后,它停止发生。
    如果您在建议的修复后仍然面临问题,请随时对此答案发表评论。如果这是正确答案,请不要忘记标记答案:-)

    关于javascript - JEST : "Async callback was not invoked within the 5000ms timeout specified by jest.setTimeout.", 尽管已经配置,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/51048119/

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