期望抛出“AssertionError：预期 { Object (browser_, then, ...) } to equal true”答案

【问题标题】：expect is throwing an "AssertionError: expected { Object (browser_, then, ...) } to equal true"期望抛出“AssertionError：预期 { Object (browser_, then, ...) } to equal true”
【发布时间】：2020-04-10 05:21:14
【问题描述】：

我的测试中有一个错误

我收到了这个错误

[08:41:37] E/launcher - expected { Object (browser_, then, ...) } to equal true
[08:41:37] E/launcher - AssertionError: expected { Object (browser_, then, ...) } to equal true
    at role.element.getText.then (/Users/jburquez/akamai/ConsoleUI/tests/e2e/console_bdd/steps/manage_agents_steps.js:114:109)
    at elementArrayFinder_.then (/Users/jburquez/akamai/ConsoleUI/node_modules/protractor/built/element.js:804:32)
    at ManagedPromise.invokeCallback_ (/Users/jburquez/akamai/ConsoleUI/node_modules/selenium-webdriver/lib/promise.js:1376:14)
    at TaskQueue.execute_ (/Users/jburquez/akamai/ConsoleUI/node_modules/selenium-webdriver/lib/promise.js:3084:14)
    at TaskQueue.executeNext_ (/Users/jburquez/akamai/ConsoleUI/node_modules/selenium-webdriver/lib/promise.js:3067:27)
    at asyncRun (/Users/jburquez/akamai/ConsoleUI/node_modules/selenium-webdriver/lib/promise.js:2927:27)
    at /Users/jburquez/akamai/ConsoleUI/node_modules/selenium-webdriver/lib/promise.js:668:7
    at process._tickCallback (internal/process/next_tick.js:68:7)
[08:41:37] E/launcher - Process exited with error code 199
[08:41:37] '<anonymous>' errored after 1.42 min
[08:41:37] Error in plugin "gulp-protractor"
Message:
    protractor exited with code 199
Details:
    domain: [object Object]
    domainThrown: true

这是我在步骤中的代码

  Then('Validate role {editrole} is selected', { timeout:30 * 1000 }, (editrole) => {
    var agentRoles = element.all(by.repeater('ctrl.roles'));
    agentRoles.each((role) => {
      return role.element(by.xpath(".//div[@class='md-whiteframe-1dp outset inset']/md-checkbox")).getText()
      .then((roleSelected) => {
        if (editrole === roleSelected) {
          expect(element(".//div[@class='md-whiteframe-1dp outset inset']/md-checkbox").isSelected()).to.be.equal(true);
        }
      });
    });
  });

我要做的是验证是否检查了一个元素，所以阅读另一个建议我看到.isSelected() 是最好的选择，但我不确定为什么会抛出这个错误。

希望你能帮助我！！

【问题讨论】：

标签： automation protractor chai

【解决方案1】：

您似乎正在尝试将对象与布尔值进行比较。如果您使用 'chai' 作为断言库，您必须做出承诺，否则使用 'eventually'。示例如下：

expect(element(".//div[@class='md-whiteframe-1dp outset inset']/md-checkbox").isSelected()).to.eventually.equal(true);

或者

element(".//div[@class='md-whiteframe-1dp outset inset']/md-checkbox").isSelected().then(function (select) {
    expect(select).to.be.true;
});

需要一点时间才能找出将期望与 promise 结合使用的正确方法。

【讨论】：

【解决方案2】：

我建议查看 async/await 语法。你也可以在这里尝试使用browser.wait(ExpectedConditions.elementToBeSelected)

Then('Validate role {editrole} is selected', { timeout:30 * 1000 }, async (editrole) => {
    const agentRoles = element.all(by.repeater('ctrl.roles'))
    expect(await agentRoles.count()).not.to.be(0)
    await browser.wait(ExpectedConditions.elementToBeSelected(
        element(by.cssContainingText('div.md-whiteframe-1dp.outset.inset md-checkbox', editrole))
    ), 10000, `Expected ${editrole} to be selected`);
});

【讨论】：