量角器比较字符串数字 [英] Protractor compare string numbers

问题描述

今天，我遇到了一个有趣的问题：创建测试用于很简单的行为：'最近的'排序。所有测试需要知道的：

1. 每个项目都有ID


2. 上一个ID少于下一个在这种情况下排序

方法：将ID写入item的属性，

问题： getAttribute（） c $ c> getAttribute（） promise产生的字符串值和Jasmine不能比较（从框中）字符串数字。

想要找到优雅的方式来与 toBeLessThan（）比较，而不是使用少量的链 .then（）将与比较这些事情完成。

无类型定义邪恶的根源

感谢家人< 3

解决方案

我忘了promise的本质，但tnx给Michael Radionov我记得我想做什么。

  expect（first.then（r => （r）））.toBe（next.then（r => Number（r）））; 
  

我猜这笔划很简单。

UPDATE

ES6：

 它应该测试数字，async函数（）{
 let first = Number（await $（'＃first'）。getText（））; 
 let second = Number（await $（'第二个）getText（））; 
 expect（first）.toBeGreaterThan（second）; 
}）
  

$ b b

Today I've faced interesting problem of create test for pretty simple behavior: 'Most recent' sorting. All what test need to know:

1. Every item have ID
2. Previous ID is less then next in this case of sorting

Approach: writing ID in to attribute of item, getting that id from first item with getAttribute() and either way for second.

Problem: getAttribute() promise resulting with string value and Jasmine is not able to compare (from the box) string numbers.

I would like to find elegant way to compare them with toBeLessThan() instead of using chains of few .then() that will be finished with comparing that things.

Root of no-type-definition evil

Thanks guys <3

解决方案

I forgot of native nature of promises but tnx to Michael Radionov I've remembered what I want to do.

expect(first.then( r => Number(r) )).toBe(next.then( r => Number(r) ));

I guess this stroke looks simple.

UPDATE

ES6:

it('should test numbers', async function () {
    let first = Number(await $('#first').getText());
    let second = Number(await $('#second').getText());
    expect(first).toBeGreaterThan(second);
})

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