mistykey/packages/backend/test/misc/MockLoggerService.ts

74 lines
1.9 KiB
TypeScript

/*
* SPDX-FileCopyrightText: hazelnoot and other Sharkey contributors
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { jest } from '@jest/globals';
import { Injectable } from '@nestjs/common';
import type { KEYWORD } from 'color-convert/conversions.js';
import type { Config } from '@/config.js';
import Logger, { type Console } from '@/logger.js';
import { LoggerService } from '@/core/LoggerService.js';
import { bindThis } from '@/decorators.js';
/**
* Mocked implementation of LoggerService.
* Suppresses all log output to prevent console spam, and records calls for assertions.
*/
@Injectable()
export class MockLoggerService extends LoggerService {
/**
* Mocked Console implementation.
* All logs from all logger instances will be sent here.
*/
public readonly console: jest.Mocked<Console> = {
error: jest.fn(),
warn: jest.fn(),
info: jest.fn(),
log: jest.fn(),
debug: jest.fn(),
};
/**
* Controls the verbose flag for logger instances.
* Defaults to false (not verbose).
*/
public verbose: boolean;
constructor(config?: Config) {
config ??= { logging: { verbose: false } } as Config;
super(config);
}
/**
* Resets the instance to initial state.
* Mocks are reset, and verbose flag is cleared.
*/
@bindThis
public reset() {
this.console.error.mockReset();
this.console.warn.mockReset();
this.console.info.mockReset();
this.console.log.mockReset();
this.console.debug.mockReset();
this.verbose = false;
}
/**
* Asserts that no errors and/or warnings have been logged.
*/
@bindThis
public assertNoErrors(opts?: { orWarnings?: boolean }): void {
expect(this.console.error).not.toHaveBeenCalled();
if (opts?.orWarnings) {
expect(this.console.warn).not.toHaveBeenCalled();
}
}
@bindThis
getLogger(domain: string, color?: KEYWORD | undefined): Logger {
return new Logger(domain, color, this.verbose, this.console);
}
}