@bigtest/mirage/tests/integration/orm/has-many/3-reflexive/accessor-test.js

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import Helper, { states } from './_helper';
import { module, test } from 'qunit';

module('Integration | ORM | Has Many | Reflexive | accessor', {
  beforeEach() {
    this.helper = new Helper();
  }
});

states.forEach((state) => {
  test(`the references of a ${state} are correct`, function(assert) {
    let [ tag, tags ] = this.helper[state]();

    assert.equal(tag.tags.models.length, tags.length, 'the parent has the correct number of children');
    assert.equal(tag.tagIds.length, tags.length, 'the parent has the correct number of children ids');

    tags.forEach((t, i) => {
      assert.deepEqual(tag.tags.models[i], t, 'each child is in parent.children array');

      if (t.isSaved()) {
        assert.ok(tag.tagIds.indexOf(t.id) > -1, 'each saved child id is in parent.childrenIds array');
      }

      // Check the inverse
      assert.ok(t.tags.includes(tag));
    });
  });
});