"Q js is undefined." while trying to resolve promise from aurelia-breeze in test method(karma+jasmine)

Question

I am consistently getting an error while trying to resolve a promise from aurelia-breeze in a test method for an aurelia(typescript + breeze) application.

Testing framework used is karma+jasmine.

Version of the aurelia-breeze package is 1.0.0

Aurelia breeze makes use of es promise resolver instead of Q.js, but the test method is searching for Q.js to resolve the promise returned from breeze.

I have tried to add the Q library to the window object from the spec file. But the breeze.debug.js is trying to access the Q js from the window object before it is set in the spec file.

this didn't resolve the issue.

Please help me to solve this issue.

Answer 1

Something like this should work:

import {configure as configureAureliaBreeze} from 'aurelia-breeze/index';
import {Container} from 'aurelia-dependency-injection';

const container = new Container();
configureAureliaBreeze({ container, globalResources: () => {} });

// ... tests ...

Breeze depends on Q for promises and jQuery for ajax. Aurelia-breeze shims both of those dependencies with ES6 promises and the aurelia http-client respectively. The code above effectively simulates what would happen in a .plugin('aurelia-breeze') call when running your aurelia application.

https://github.com/jdanyow/aurelia-breeze/blob/master/src/index.js#L15-L16