How to use the pino.mockImplementation function in pino
To help you get started, we’ve selected a few pino examples, based on popular ways it is used in public projects.
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moleculerjs / moleculer / test / unit / loggers / pino.spec.js View on Github 
"use strict";
jest.mock("pino");
const Pino = require("pino");
const childFakeLogger = { warn: jest.fn() };
const fakeLogger = {
child: jest.fn(() => childFakeLogger)
};
Pino.mockImplementation(() => fakeLogger);
const PinoLogger = require("../../../src/loggers/pino");
const ServiceBroker = require("../../../src/service-broker");
const LoggerFactory = require("../../../src/logger-factory");
const broker = new ServiceBroker({ logger: false });
describe("Test Pino logger class", () => {
describe("Test Constructor", () => {
it("should create with default options", () => {
const logger = new PinoLogger();
expect(logger.opts).toEqual({
pino: {
