Chutzpah Error: Object doesn't support property or method 'filter'

Question

I'm trying to run jasmine tests on my knockout viewmodels, written in typescript via chutzpah but this doesn't seem possible due to the following error:

Chutzpah Error: Object doesn't support property or method 'filter'

This error gets thrown whenever I access a knockout observable and can be recreated via the following simple example.

/// <reference path="../../typings/jquery/jquery.d.ts" />
/// <reference path="../../typings/knockout/knockout.d.ts" />
/// <reference path="../../typings/jasmine/jasmine.d.ts" />

module Example {
    export class KnockoutClass {
        public anObservable = ko.observable<string>();

        public aComputed = ko.computed<boolean>(() => {
            return this.anObservable().length() > 5;
        });
    }
}

describe("This", () => {
    it(" will throw an error", () => {        

        var temp: Example.KnockoutClass = new Example.KnockoutClass();

    });
});

Am I doing something fundamentally wrong here or is chutzpah not compatible with the knockout/typescript combination?

UPDATE

So I've managed to get chutzpah to run my tests by doing the following:

1. Remove the 'Jasmine Test Framework' NuGet package from my project and replace it with the 'jasmine.js' NuGet package instead.
2. Add a jasmine specrunner.html file to my tests directory that references my tests and their dependencies
3. In Tools->Options->Chutzpah->Unit Test Explorer set Testing Mode to HTML
4. Run tests from the Test Explorer window

This gets my tests running successfully but I still get the same exception when I try to run by right click->'Run JS Tests' and I can't debug tests either.

The issue seems to be that none of my references are resolved (the filter method is defined within jquery) so maybe I need to use require.js or some other module loader to resolve my dependencies?

Answer 1

This is resolved by upgrading to the latest version of Chutzpah.