在第三方库上执行
"use strict";
const MongoClient = require('mongodb').MongoClient;
function createDb() {
return new Promise((resolve, reject) => { // return createDb a promise
MongoClient.connect("mongodb://167.114.36.160:27017/testlambda2",
{ useNewUrlParser: true, useUnifiedTopology: true },
function (err, db) {
if (err) {
return reject(err);
};
console.log("Database created!");
resolve(db); // like return :)
});
})
}
module.exports.consumo_monofasico = async (event, context) => {
let result = {};
try {
var db = await createDb(); // now you can get a response what has been "pushed" in `resolve`
// TODO: Do some things with db instance
// success response
result = {
statusCode: 200,
body: JSON.stringify(
{
message: 'Test mongo!',
resultado: "Connected!"
},
null,
2
),
};
// close db connection
db.close();
} catch (err) { // err is a error what has been pushed in `reject` :|
// error response
result = {
statusCode: 500, // http error code
body: JSON.stringify(
{
message: 'Test mongo!',
resultado: err
},
null,
2
),
};
}
return result;
};
时遇到以下错误。有问题的库是jest.Mock。
react-email-editor jest.mock("react-email-editor", () => {
return {
Editor: <div>Email Editor</div>,
};
});
出现错误
jest.mock如果我将其更改为 file.js: babel-plugin-jest-hoist: The module factory of `jest.mock()` is not allowed to reference any out-of-scope variables.
Invalid variable access: React
Whitelisted objects: Array, ArrayBuffer, Boolean, DataView, Date, Error, EvalError, Float32Array, Float64Array, Function, Generator, GeneratorFunction, Infinity, Int16Array, Int32Array, Int8Array, InternalError, Intl, JSON, Map, Math, NaN, Number, Object, Promise, Proxy, RangeError, ReferenceError, Reflect, RegExp, Set, String, Symbol, SyntaxError, TypeError, URIError, Uint16Array, Uint32Array, Uint8Array, Uint8ClampedArray, WeakMap, WeakSet, arguments, expect, jest, require, undefined, console, DTRACE_NET_SERVER_CONNECTION, DTRACE_NET_STREAM_END, DTRACE_HTTP_SERVER_REQUEST, DTRACE_HTTP_SERVER_RESPONSE, DTRACE_HTTP_CLIENT_REQUEST, DTRACE_HTTP_CLIENT_RESPONSE, COUNTER_NET_SERVER_CONNECTION, COUNTER_NET_SERVER_CONNECTION_CLOSE, COUNTER_HTTP_SERVER_REQUEST, COUNTER_HTTP_SERVER_RESPONSE, COUNTER_HTTP_CLIENT_REQUEST, COUNTER_HTTP_CLIENT_RESPONSE, global, process, Buffer, clearImmediate, clearInterval, clearTimeout, setImmediate, setInterval, setTimeout.
Note: This is a precaution to guard against uninitialized mock variables. If it is ensured that the mock is required lazily, variable names prefixed with `mock` are permitted.
，我会得到：
doMock注意：由于我使用的是Typescript，而react email编辑器没有类型定义，因此必须在项目根Warning: React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined. You likely forgot to export your component from the file it's defined in, or you might have mixed up default and named imports.
中创建一个存根定义文件，如下所示：
.types/react-email-editor/index.d.ts
编辑：在调用jest.mock之前的导入列表
declare module "react-email-editor";答案 0 :(得分：0)
我认为应该是：
jest.mock("react-email-editor", () => () => <div>Email Editor</div>);