core-js/tests/unit-pure/esnext.weak-map.of.js

import WeakMap from 'core-js-pure/full/weak-map';

QUnit.test('WeakMap.of', assert => {
  const { of } = WeakMap;
  assert.isFunction(of);
  assert.name(of, 'of');
  assert.arity(of, 0);
  const array = [];
  assert.true(of() instanceof WeakMap);
  assert.same(of([array, 2]).get(array), 2);
});