gerich-home/it-depends

var expect = require('chai').expect;
var itDepends = require('../out/build/it-depends.js');

describe('promise value', function () {
    var callbacks = [];
    var promiseValue;
    var initialValue = 'Hello';
    
    var resolvePromise = function(newValue) {
        for(var i = 0; i < callbacks.length; i++) {
            callbacks[i](newValue);
        }
    };

    beforeEach(function(){
        var promise = {
            then: function(callback) {
                callbacks.push(callback);
            }
        };
        
        promiseValue = itDepends.promiseValue(promise, initialValue);
    });

    it('should be initialized with given value', function () {
        expect(promiseValue()).to.equal(initialValue);
    });

    it('should be changed to new value after promise was resolved', function () {
        resolvePromise('Bye');
        expect(promiseValue()).to.equal('Bye');
    });
});