@bbc/spartacus/lib/utilities/loggers/logger.web.test.js

SPArtacus

'use strict';

var loggerWeb = require('./logger.web');

var message = 'test message';
global.console = {
  error: jest.fn(),
  warn: jest.fn(),
  info: jest.fn(),
  debug: jest.fn(),
  log: jest.fn()
};

var expectNotCalled = function expectNotCalled(object, keys) {
  keys.forEach(function (key) {
    expect(object[key]).not.toHaveBeenCalled();
  });
};

describe('Logger Web - for the client-side', function () {
  afterEach(function () {
    jest.clearAllMocks();
  });

  it('logger.error should run console.error', function () {
    var loggerInstance = loggerWeb('');
    loggerInstance.error(message);
    expect(global.console.error).toHaveBeenCalledWith('error - ' + message);
    expectNotCalled(global.console, ['debug', 'info', 'log', 'warn']);
  });

  it('logger.warn should run console.warn', function () {
    var loggerInstance = loggerWeb('');
    loggerInstance.warn(message);

    expect(global.console.warn).toHaveBeenCalledWith('warn - ' + message);
    expectNotCalled(global.console, ['debug', 'error', 'info', 'log']);
  });

  it('logger.info should run console.info', function () {
    var loggerInstance = loggerWeb('');
    loggerInstance.info(message);

    expect(global.console.info).toHaveBeenCalledWith('info - ' + message);
    expectNotCalled(global.console, ['debug', 'error', 'log', 'warn']);
  });

  it('logger.debug should run console.debug', function () {
    var loggerInstance = loggerWeb('');
    loggerInstance.debug(message);

    expect(global.console.debug).toHaveBeenCalledWith('debug - ' + message);
    expectNotCalled(global.console, ['error', 'info', 'log', 'warn']);
  });

  it('logger.verbose should run console.log', function () {
    var loggerInstance = loggerWeb('');
    loggerInstance.verbose(message);

    expect(global.console.log).toHaveBeenCalledWith('verbose - ' + message);
    expectNotCalled(global.console, ['debug', 'error', 'info', 'warn']);
  });

  it('logger.silly should run console.log', function () {
    var loggerInstance = loggerWeb('');
    loggerInstance.silly(message);

    expect(global.console.log).toHaveBeenCalledWith('silly - ' + message);
    expectNotCalled(global.console, ['debug', 'error', 'info', 'warn']);
  });
});