ember-test-helpers-extra

Install

yarn add --dev ember-test-helpers-extra

Usage

getService

Retreives a service by name.

let store = getService('store');

stubService

Stubs a service by name, using either an object or Service class definition

stubService('my-service', {
  foo() {
    return false;
  }
});

stubService('my-service', Service.extend({
  foo() {
    return false;
  }
}));

setupServiceStub

This helper is for a special situation in which you need to stub a service that has already been registered and accessed, which prevents you from re-registering a service stub.

This stems from (instance) initializers accessing the services. Generally, it's best practice to avoid initializers -- but sometimes legacy code has utilized their ability to reduce repetition, or run some boot-time code.

Related issue reported in ember-cli-qunit: ember-cli/ember-cli-qunit#203 (comment)

module('Integration | Component | my-component', function(hooks) {
  setupRenderingTest(hooks);
  setupServiceStub(hooks, 'my-service', {
    foo() {
      false;
    }
  })
});