jslib/node/spec/cli/consoleLog.service.spec.ts

import { ConsoleLogService } from "src/cli/services/consoleLog.service";

const originalConsole = console;
let caughtMessage: any;

declare var console: any;

export function interceptConsole(interceptions: any): object {
  console = {
    // tslint:disable-next-line
    log: function () {
      interceptions.log = arguments;
    },
    // tslint:disable-next-line
    warn: function () {
      interceptions.warn = arguments;
    },
    // tslint:disable-next-line
    error: function () {
      interceptions.error = arguments;
    },
  };
  return interceptions;
}

export function restoreConsole() {
  console = originalConsole;
}

describe("CLI Console log service", () => {
  let logService: ConsoleLogService;
  beforeEach(() => {
    caughtMessage = {};
    interceptConsole(caughtMessage);
    logService = new ConsoleLogService(true);
  });

  afterAll(() => {
    restoreConsole();
  });

  it("should redirect all console to error if BW_RESPONSE env is true", () => {
    process.env.BW_RESPONSE = "true";

    logService.debug("this is a debug message");
    expect(caughtMessage).toEqual({
      error: jasmine.arrayWithExactContents(["this is a debug message"]),
    });
  });

  it("should not redirect console to error if BW_RESPONSE != true", () => {
    process.env.BW_RESPONSE = "false";

    logService.debug("debug");
    logService.info("info");
    logService.warning("warning");
    logService.error("error");

    expect(caughtMessage).toEqual({
      log: jasmine.arrayWithExactContents(["info"]),
      warn: jasmine.arrayWithExactContents(["warning"]),
      error: jasmine.arrayWithExactContents(["error"]),
    });
  });
});