Protractor Serenity/JS：为什么See.if中的断言有时返回空字符串？

我面临See.if（）的问题-它有时返回空字符串

使用的技术堆栈：

宁静/JS配黄瓜和量角器

P-Growl-启动咆哮组件

柴如约-期望法

以下是错误：断言错误：预期“”包含“操作成功”

步骤。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)
    );
});

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)
        );
    }
  }
}

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'));
}

任务。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)
    );
});

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)
        );
    }
  }
}

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。提前感谢。

在Wait.until（）之前，尝试Wait.for（持续时间为秒（5））

---

我通过提供primeng咆哮消息选择器解决了这个问题

为消息（#messages.ui咆哮消息）提供了精确的选择器

以下代码已修复：

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'));
}

---

如果我去等待，那么等待在内部做什么？