我已经在这里待了两个小时了,但无法弄清楚我在做什么错。我有以下jest + puppeteer测试:
import {convert} from '../__helpers__/number';
const getAmount = async (page) => {
const element = await page.waitForSelector('.my-element');
return element.evaluate((node) => convert(node.innerText));
}
这非常简单直接。但它始终失败,并显示以下错误:
Error: Evaluation failed: ReferenceError: _number is not defined
at __puppeteer_evaluation_script__:2:15
at ExecutionContext._evaluateInternal (node_modules/puppeteer/lib/ExecutionContext.js:122:13)
-- ASYNC --
at ExecutionContext.<anonymous> (node_modules/puppeteer/lib/helper.js:111:15)
at ElementHandle.evaluate (node_modules/puppeteer/lib/JSHandle.js:55:42)
at ElementHandle.evaluate (node_modules/puppeteer/lib/helper.js:112:23)
at _callee$ (__tests__/e2e/test.spec.js:13:27)
at tryCatch (node_modules/@babel/polyfill/node_modules/regenerator-runtime/runtime.js:45:40)
at Generator.invoke [as _invoke] (node_modules/@babel/polyfill/node_modules/regenerator-runtime/runtime.js:271:22)
at Generator.prototype.(anonymous function) [as next] (node_modules/@babel/polyfill/node_modules/regenerator-runtime/runtime.js:97:21)
at asyncGeneratorStep (__tests__/e2e/test.spec.js:30:103)
at _next (__tests__/e2e/test.spec.js:32:194)
上面的行号与源代码不匹配。从错误中看,似乎是由于转码失败。所以我去了jest-transform-cache
位置,看了一下文件,行号也不匹配。它们全都减1。转译的代码也具有更新的输出并具有以下行:
var _number = require('../__helpers__/number');
我尝试了所有可以想到的方式进行调试:
也尝试过:
// import {convert} from '../__helpers__/number';
const convert = (text) => magic(text); // for simplicity's sake
const getAmount = async (page) => {
const element = await page.waitForSelector('.my-element');
return element.evaluate((node) => convert(node.innerText));
}
现在它失败并出现以下错误:
Evaluation failed: ReferenceError: convert is not defined
at __puppeteer_evaluation_script__:2:15
at ExecutionContext._evaluateInternal (node_modules/puppeteer/lib/ExecutionContext.js:122:13)
.
:
我想把它扔在这里,看看是否有人遇到这种怪异现象。它不应该以任何规范失败,我根本无法弄清楚。请帮我!任何想法/方向将不胜感激。
谢谢!
答案 0 :(得分:0)
您需要像下面这样传递转换函数作为elementHandle.evaluate(pageFunction[, ...args])的参数:
INSERT OVERWRITE TABLE mydb.orders_fact partition (order_date)
SELECT order_id, ...
order_date
FROM some_other_table;
答案 1 :(得分:0)
好的,自从我问了这个问题一周后,我才选择了测试来解决这个问题。我只是没有想到下面的代码。我想盯着代码看几个小时,无缘无故就可以解决这个问题。
在评估后只需进行转换即可。
import {convert} from '../__helpers__/number';
const getAmount = async (page) => {
const element = await page.waitForSelector('.my-element');
const amountString = await element.evaluate((node) => node.innerText);
return convert(amountString);
}
谢谢@plat123456789 for your answer,非常感谢!