wwwterm/test/logging.spec.js

const expect = require('chai').expect
var debug = require('debug');

describe('Tests for app/logging module', function(){
  beforeEach(function(){
    if (!this.debug){
      var debugcb = this.sandbox.spy();
      debugcb.namespace = "";
      debugcb.enabled = true;
      debugcb.destroy = function(){};

      //console.log(require.cache[require.resolve('debug')]);

      this.debugcb = debugcb;
      this.debug = this.sandbox.stub(require.cache[require.resolve('debug')], 'exports').callsFake(function(ns){
        debugcb.namespace = ns;
        return debugcb;
      });
    }
  });


  it('Create Log instance', function(){
    let log = (require('../app/logging')).createLog("test");
    expect(this.debug.called).to.eql(true);
  });

  it('Log instance persists.', function(){
    expect((require('../app/logging')).length).to.eql(1);
  });

  it('No duplicates when same namespace used.', function(){
    let lsys = require('../app/logging');
    let log = lsys.createLog("test");
    expect(lsys.length).to.eql(1);
  });

  it('Clear all current logs.', function(){
    let lsys = require('../app/logging');
    lsys.clear();
    expect(lsys.length).to.eql(0);
  });

  describe('Testing core log methods', function(){
    after(function(){
      (require('../app/logging')).clear();
    });

    it('.info()', function(){
      let log = (require('../app/logging')).createLog("test");
      let msg = "Test Burger";
      log.info(msg);

      expect(this.debugcb.calledWith("[ INFO ]: " + msg)).to.eql(true);
    });

    it('.debug()', function(){
      let log = (require('../app/logging')).createLog("test");
      let msg = "Test Burger";
      log.debug(msg);

      expect(this.debugcb.calledWith("[ DEBUG ]: " + msg)).to.eql(true);
    });

    it('.warning()', function(){
      let log = (require('../app/logging')).createLog("test");
      let msg = "Test Burger";
      log.warning(msg);

      expect(this.debugcb.calledWith("[ WARNING ]: " + msg)).to.eql(true);
    });

    it('.error()', function(){
      let log = (require('../app/logging')).createLog("test");
      let msg = "Test Burger";
      log.error(msg);

      expect(this.debugcb.calledWith("[ ERROR ]: " + msg)).to.eql(true);
    });

    it('.critical()', function(){
      let log = (require('../app/logging')).createLog("test");
      let msg = "Test Burger";
      log.critical(msg);

      expect(this.debugcb.calledWith("[ CRITICAL ]: " + msg)).to.eql(true);
    });
  });
});