cylon-crazyflie/spec/helper.js

Cylon adaptor/drivers for Crazyflie nanocopter

"use strict";

// allow production modules to expose internal
// functions and properties for testing
process.env.NODE_ENV = "test";

var path = require("path");
var chai = require("chai");
var sinonChai = require("sinon-chai");

var Cylon = require("cylon");
Cylon.config({ logging: { logger: false } });

global.chai = chai;
global.should = chai.should();
global.expect = chai.expect;
global.assert = chai.assert;
global.AssertionError = chai.AssertionError;
global.sinon = require("sinon");
global.spy = sinon.spy;
global.stub = sinon.stub;

// can be used by test modules to require production modules,
// relative to the base path (where the Gruntfile.js also lives)
global.lib = function(src) {
  var resource = path.normalize("../lib/" + src);
  return require(resource);
};

// can be used when you expect a function to throw an error
global.err = function(fn, msg) {
  try {
    fn();
    throw new chai.AssertionError({ message: "Expected an error" });
  } catch (err) {
    if (typeof msg === "string") {
      chai.expect(err.message).to.equal(msg);
    } else {
      chai.expect(err.message).to.match(msg);
    }
  }
};

chai.use(sinonChai);

// if you want a detailed error stack output
// chai.Assertion.includeStack = true;