Could not find the "presence" validator with Ember Validations addon - ember.js

Question

I'm trying to use the Ember Validations addon and I can't get it working. In the Chrome console, I see: WARNING: Could not find the "presence" validator.
Here is my model:
import Ember from 'ember';
import DS from 'ember-data';
import EmberValidations from 'ember-validations';
export default DS.Model.extend(EmberValidations.Mixin, {
name: DS.attr('string'),
validations: {
name: {
presence: true
}
}
});
And here is the my test:
import Ember from 'ember';
import EmberValidations from 'ember-validations';
import { moduleForModel, test } from 'ember-qunit';
moduleForModel('person', 'Unit | Model | person', {
// Specify the other units that are required for this test.
needs: ['ember-validations#validator:local/presence'],
afterEach: function() {
window.sessionStorage.clear();
}
});
test('isValid should be false if name is not set', function(assert) {
stop();
var model = this.subject();
console.log(model);
Ember.run(function() {
sinon.spy(model, 'save');
model.validate().then(function() {
start();
assert.equal(model.get('isValid'), false);
});
});
});
The result of this test is:
Died on test #1 at Object.test (http://localhost:4200/assets/test-support.js:1644:11)
at http://localhost:4200/assets/myproj.js:14450:15
at mod.state (http://localhost:4200/assets/vendor.js:150:29)
at tryFinally (http://localhost:4200/assets/vendor.js:30:14)
at requireModule (http://localhost:4200/assets/vendor.js:148:5)
at Object.TestLoader.require (http://localhost:4200/assets/test-loader.js:29:9)
at Object.TestLoader.loadModules (http://localhost:4200/assets/test-loader.js:21:18): <(unknown mixin):ember848>

Answer 1

You need to add dependencies to test suite as defined in ember-validations docs in testing part. However, take notice that these docs are a little bit outdated. The proper needs should include only the validators you use (presence) and look like this:
needs: ['ember-validations#validator:local/presence']
Do not indclude service:validations.
I posted an issue quite a while ago but it's not discussed yet.