How to use the @xviz/parser.XVIZObjectCollection function in @xviz/parser

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//
//     http://www.apache.org/licenses/LICENSE-2.0
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// limitations under the License.

import test from 'tape-catch';

import {XVIZObject, XVIZObjectCollection} from '@xviz/parser';

/* set default collection */
XVIZObject.setDefaultCollection(new XVIZObjectCollection());

test('XVIZObjectCollection#observe, get, getAll', t => {
  const collection = new XVIZObjectCollection();

  const object0 = collection.get('A');
  t.notOk(object0, 'should not return XVIZ object');

  collection.observe('A', 1000);
  const object1 = collection.get('A');
  t.ok(object1 instanceof XVIZObject, 'gets XVIZ object');
  t.is(object1.id, 'A', 'XVIZ object id is correct');

  collection.observe('A', 1001);
  const object11 = collection.get('A');
  t.is(object1, object11, 'gets the same XVIZ object');

test('XVIZObjectCollection#prune', t => {
  const collection = new XVIZObjectCollection();

  collection.observe('A', 1000);
  collection.observe('B', 1001);
  collection.observe('C', 1002);

  collection.prune(1001, 1003);
  t.is(collection.objects.size, 2, 'has correct number of objects');
  const objects = collection.getAll();
  t.deepEquals(Object.keys(objects), ['B', 'C'], 'dropped the correct object');

  t.end();
});

test('XVIZObjectCollection#resetAll, getAllInCurrentFrame', t => {
  const collection = new XVIZObjectCollection();

  collection.observe('A', 1000);
  collection.observe('B', 1000);

  const object1 = collection.get('A');
  const object2 = collection.get('B');

  object1._addFeature('/a', {center: [0, 1]});
  t.deepEquals(
    collection.getAllInCurrentFrame(),
    {A: object1},
    'returns all XVIZ objects in current frame'
  );

  collection.resetAll();
  t.deepEquals(collection.getAllInCurrentFrame(), {}, 'returns all XVIZ objects in current frame');

test('XVIZObjectCollection#observe, get, getAll', t => {
  const collection = new XVIZObjectCollection();

  const object0 = collection.get('A');
  t.notOk(object0, 'should not return XVIZ object');

  collection.observe('A', 1000);
  const object1 = collection.get('A');
  t.ok(object1 instanceof XVIZObject, 'gets XVIZ object');
  t.is(object1.id, 'A', 'XVIZ object id is correct');

  collection.observe('A', 1001);
  const object11 = collection.get('A');
  t.is(object1, object11, 'gets the same XVIZ object');

  collection.observe('B', 1001);
  const object2 = collection.get('B');
  t.not(object1, object2, 'gets different XVIZ object');