@incdevco/framework/mock/expectation/spec.js

node.js lambda framework

var Expect = require('chai').expect;
var Mock = require('../index');

var Expectation = require('./index');

describe('mock/expectation', function () {
  'use strict';
  
  it('should set _will to "executeCallback" and store submitted arguments in _callbackArguments', function () {
    
    var arg1 = 'arg1', arg2 = 'arg2', expectation = new Expectation();
    
    expectation.willExecuteCallback(arg1, arg2);
    
    Expect(expectation._will).to.equal('executeCallback', 'expectation._will');
    Expect(expectation._callbackArguments).to.deep.equal([
      arg1,
      arg2
    ], 'expectation._callbackArguments');
    
  });
  
  it('should set _reflect to submitted value', function() {
    
    var value = 'value', expectation = new Expectation();
    
    expectation.willReflect(value);
    
    Expect(expectation._reflect).to.equal(value, 'expectation._reflect');
    
  });
  
  describe('willReturnAwsPromiseReject', function() {
    
    it('should call willReturn with an object with a promise function that rejects with the submitted value', function (done) {
      
      var value = 'value', expectation = new Expectation();
      
      expectation.willReturnAwsPromiseReject(value);
      
      Expect(expectation._will).to.equal('return', '_will');
      
      expectation._return.promise()
      .then(function () {
        
        throw new Error('resolved');
        
      })
      .catch(function (actual) {
        
        Expect(actual).to.equal(value, 'rejected value');
        
        return done();
        
      })
      .catch(done);
      
    });
    
  });
  
});