如何解决量角器中的承诺

Question

我在量角器上创建了一个简单的脚本，但对我来说，该脚本运行不正确。请找到代码并输出

 it('Test#5.5 - Select top 5 Email Dumps', async () => {
    let testId = 5.5;
    let timeKey = 'Select top 5 Email Dumps';
    console.time(timeKey);
    log.info('\n', 'Selecting top 5 Email Dumps one after one')
    // let email_dumps_list = await element.all(by.xpath('//*[contains(@data-selenium,"email_dump_item")]')).count();
    // log.info('list of email dumps are ' + email_dumps_list);
    for (let i = 0; i < 5; i++) {
      let email_dump_item = await element.all(by.xpath('//*[contains(@data-selenium,"email_dump_item")]/div/span')).get(i);
      selectElementAndCheckText(email_dump_item, testId + '_' + i)
}
});

 async function selectElementAndCheckText(obj, testId) {
    // const email_dump_0 = await element.all(by.xpath('//*[contains(@data-selenium,"email_dump_item")]/div/span')).get(element);
    let email_dump_name = await obj.getText()
    log.info('Clicking on ' + email_dump_name + ' email dump')
    obj.click().then(async function(){
    const email_header_name = element(by.css('div[data-testid="data-dump-page"] > * .MuiToolbar-gutters'));
    if (browser.wait(EC.visibilityOf(email_header_name), 5000)) {
      checkText(email_dump_name, await email_header_name.getText(), 'Email details shown doesn\'t match with the selected Dump', testId)
      log.info("Pass")
      return true;
    }
    else {
      log.error('Email dump details not loaded')
      return false;
    }
  });
  }

 async function checkText(actualText, expectedText, errorMessage, testId) {
    try {
      assert.equal(actualText, expectedText, errorMessage, '\n')
    } catch (error) {
      console.log(error);
    }
  }

输出

Selecting top 5 Email Dumps one after one
[1028/234735.013:INFO:CONSOLE(1)] "true SORT", source: https://webapp-dev-raven.ocp-nonprod.com/static/js/main.88ddd1a0.chunk.js (1)

Clicking on Selenium email dump email dump
Clicking on 10k email upload test email dump
Clicking on 191 emails test email dump
Clicking on another 100 emails email dump
Clicking on simulated 100 emails email dump

AssertionError [ERR_ASSERTION] [ERR_ASSERTION]: Email details shown doesn't match with the selected Dump
    at checkText (C:\Users\webapp\test\e2e\email-dumps-test.js:270:14)
    at C:\Users\webapp\test\e2e\email-dumps-test.js:114:7
    at processTicksAndRejections (internal/process/task_queues.js:95:5) {
  generatedMessage: false,
  code: 'ERR_ASSERTION',
  actual: 'Selenium email dump',
  expected: 'simulated 100 emails',
  operator: '=='
}
Pass

AssertionError [ERR_ASSERTION] [ERR_ASSERTION]: Email details shown doesn't match with the selected Dump
    at checkText (C:\Users\webapp\test\e2e\email-dumps-test.js:270:14)
    at C:\Users\webapp\test\e2e\email-dumps-test.js:114:7
    at processTicksAndRejections (internal/process/task_queues.js:95:5) {
  generatedMessage: false,
  code: 'ERR_ASSERTION',
  actual: '10k email upload test',
  expected: 'simulated 100 emails',
  operator: '=='
}
Pass

AssertionError [ERR_ASSERTION] [ERR_ASSERTION]: Email details shown doesn't match with the selected Dump
    at checkText (C:\Users\webapp\test\e2e\email-dumps-test.js:270:14)
    at C:\Users\webapp\test\e2e\email-dumps-test.js:114:7
    at processTicksAndRejections (internal/process/task_queues.js:95:5) {
  generatedMessage: false,
  code: 'ERR_ASSERTION',
  actual: '191 emails test',
  expected: 'simulated 100 emails',
  operator: '=='
}
Pass

如果您注意到输出，for 循环在进入 obj.click() 之前首先执行。然后是函数，因此它会打印日志，然后进行实际测试。如果我在这里做错了什么，你能告诉我吗？

Answer 1

因为你的函数selectElementAndCheckText()和selectElementAndCheckText ()是Async的，所以调用的时候需要加前缀await

await 应添加到以下位置：

for (let i = 0; i < 5; i++) {
   let email_dump_item = await element.all(by.xpath('//*[contains(@data-selenium,"email_dump_item")]/div/span')).get(i);
   await selectElementAndCheckText(email_dump_item, testId + '_' + i)

....

    if (browser.wait(EC.visibilityOf(email_header_name), 5000)) {
      await checkText(email_dump_name, await email_header_name.getText(), 'Email details shown doesn\'t match with the selected Dump', testId)

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