import { Logger } from '@nestjs/common'; beforeAll(() => { // Keep successful test runs quiet by silencing Nest logger output. Logger.overrideLogger(false); jest.spyOn(Logger.prototype, 'log').mockImplementation(() => undefined); jest.spyOn(Logger.prototype, 'error').mockImplementation(() => undefined); jest.spyOn(Logger.prototype, 'warn').mockImplementation(() => undefined); jest.spyOn(Logger.prototype, 'debug').mockImplementation(() => undefined); jest.spyOn(Logger.prototype, 'verbose').mockImplementation(() => undefined); });