宁静/JS:为什么See.if中的断言有时返回空字符串？

Question

我在See.if()中遇到了一个问题，它有时会返回空字符串。

使用的技术堆栈：

1. 黄瓜和量角器的宁静/JS
2. P-咆哮-初级咆哮组分
3. 柴氏承诺-期待方法

以下是错误：断言错误:期望“”包含“操作成功”

steps.ts

this.Then(/^he should see the user (.*) success message$/, (severity) => {

    browser.waitForAngularEnabled(false); // Workaround fix for p-growl

    return stage.theActorInTheSpotlight().attemptsTo(
        Messages.called(severity)
    );
});

Task.ts

import { PerformsTasks, Task, Enter, Click, See, Is, Wait, Text } from 'serenity-js/protractor';

import { expect } from '../utils/expect';
import { ListUI } from '../components/ui';

export class Messages implements Task {

  constructor(private severity: string) { }

  static called(severity: string) {
    return new Messages(severity);
  }

  performAs(actor: PerformsTasks): PromiseLike<void> {
    if (this.severity.toLowerCase() === 'success') {
        return actor.attemptsTo(
            Wait.until(ListUI.message, Is.present()),
            See.if(
                Text.of(ListUI.message),
                actual => expect(actual).to.eventually.include('Operation Success')
            ),
            Click.on(ListUI.messageCloseWidget)
        );
    }
  }
}

ui.ts

import { Target, Text } from 'serenity-js/protractor';
import { by } from 'protractor';

export class ListUI {

  static message = Target.the('Message Widget')
    .located(by.id('messages'));

  static messageCloseWidget = Target.the('Message Close Widget')
    .located(by.css('#messages .ui-growl-icon-close'));
}

请帮帮我。提前谢谢。

Answer 1

尝试使用Wait.for(Duration.ofSeconds(5))，在wait.until()之前

Wait.for(Duration.ofSeconds(5)),
Wait.until(ListUI.message, Is.present()),

Answer 2

我通过提供原始咆哮信息选择器来解决这个问题。

为消息提供准确的选择器(#messages ..ui咆哮-消息)。

以下代码是固定的：

import { Target, Text } from 'serenity-js/protractor';
import { by } from 'protractor';

export class ListUI {

  static message = Target.the('Message Widget')
    .located(by.css('#messages .ui-growl-message'));

  static messageCloseWidget = Target.the('Message Close Widget')
    .located(by.css('#messages .ui-growl-icon-close'));
}