moduleForVSmoduleForComponent

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  
  _isZero: Ember.computed('numberparam', function(){
    return this.get('numberparam') === 0;
  })

});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
{{my-component numberparam=0 }}
{{my-component numberparam=1 }}
<br>
{{outlet}}
<br>
<br>

templates.components.my-component.hbs

{{yield}}
{{_isZero}}

tests.helpers.resolver.js

import Resolver from '../../resolver';
import config from '../../config/environment';

const resolver = Resolver.create();

resolver.namespace = {
  modulePrefix: config.modulePrefix,
  podModulePrefix: config.podModulePrefix
};

export default resolver;

tests.test-helper.js

import resolver from './helpers/resolver';
import {
  setResolver
} from 'ember-qunit';

setResolver(resolver);

tests.unit.components.my-component-test.js

import { moduleForComponent, test } from 'ember-qunit';

moduleForComponent('my-component', 'unit: my-component', {
  // Specify the other units that are required for this test.
  // needs: ['controller:foo']
});

// Replace this with your real tests.
test('it exists', function(assert) {
  let component = this.subject();
  assert.ok(component);
  component.set('numberparam', 0);
  assert.ok(component.get('_isZero'));
});

tests.unit.components.my-component-test2.js

import { moduleFor, test } from 'ember-qunit';

moduleFor('component:my-component', 'unit: my-component', {
  // Specify the other units that are required for this test.
  // needs: ['controller:foo']
});

// Replace this with your real tests.
test('it exists', function(assert) {
  let component = this.subject();
  assert.ok(component);
  component.set('numberparam', 0);
  assert.ok(component.get('_isZero'));
});

twiddle.json

{
  "version": "0.13.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": true
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.16.2",
    "ember-template-compiler": "2.16.2",
    "ember-testing": "2.16.2"
  },
  "addons": {
    "ember-data": "2.16.3"
  }
}