express-status-monitor/test/helpers/validate.spec.js

Realtime Monitoring for Express-based Node applications

/* eslint-disable no-unused-expressions */
const chai = require('chai');

chai.should();

const defaultConfig = require('../../src/helpers/default-config');
const validate = require('../../src/helpers/validate');

describe('validate', () => {
  describe('when config is null or undefined', () => {
    const config = validate();

    it(`then title === ${defaultConfig.title}`, () => {
      config.title.should.equal(defaultConfig.title);
    });

    it(`then path === ${defaultConfig.path}`, () => {
      config.path.should.equal(defaultConfig.path);
    });

    it(`then spans === ${JSON.stringify(defaultConfig.spans)}`, () => {
      config.spans.should.equal(defaultConfig.spans);
    });

    it('then port === null', () => {
      chai.expect(config.port).to.be.null;
    });

    it('then websocket === null', () => {
      chai.expect(config.websocket).to.be.null;
    });
  });

  describe('when config is invalid', () => {
    const config = validate({ title: true, path: false, spans: 'not-an-array', port: 'abc', websocket: false });

    it(`then title === ${defaultConfig.title}`, () => {
      config.title.should.equal(defaultConfig.title);
    });

    it(`then path === ${defaultConfig.path}`, () => {
      config.path.should.equal(defaultConfig.path);
    });

    it(`then spans === ${JSON.stringify(defaultConfig.spans)}`, () => {
      config.spans.should.equal(defaultConfig.spans);
    });

    it('then port === null', () => {
      chai.expect(config.port).to.be.null;
    });

    it('then websocket === null', () => {
      chai.expect(config.websocket).to.be.null;
    });
  });

  describe('when config is valid', () => {
    const customConfig = { title: 'Custom title', path: '/custom-path', spans: [{}, {}, {}], port: 9999, websocket: {} };
    const config = validate(customConfig);

    it(`then title === ${customConfig.title}`, () => {
      config.title.should.equal(customConfig.title);
    });

    it(`then path === ${customConfig.path}`, () => {
      config.path.should.equal(customConfig.path);
    });

    it(`then spans === ${JSON.stringify(customConfig.spans)}`, () => {
      config.spans.should.equal(customConfig.spans);
    });

    it('then websocket === {}', () => {
      config.websocket.should.deep.equal({});
    });

    it(`then port === ${customConfig.port}`, () => {
      config.port.should.equal(customConfig.port);
    });
  });
});