text: import from from 'core-js-pure/es/array/from';
  import Map from 'core-js-pure/features/map';
  
  QUnit.test('Map.of', assert => {
    const { of } = Map;
    assert.isFunction(of);
    assert.arity(of, 0);
    assert.true(Map.of() instanceof Map);
    assert.deepEqual(from(Map.of([1, 2])), [[1, 2]]);
    assert.deepEqual(from(Map.of([1, 2], [2, 3], [1, 4])), [[1, 4], [2, 3]]);
    assert.throws(() => of(1));
    let arg = null;
    function F(it) {
      return arg = it;
    }
    of.call(F, 1, 2, 3);
    assert.deepEqual(arg, [1, 2, 3]);
  });
  