core-js/tests/unit-pure/es.number.epsilon.js

import EPSILON from 'core-js-pure/es/number/epsilon';

QUnit.test('Number.EPSILON', assert => {
  assert.same(EPSILON, 2 ** -52, 'Is 2^-52');
  assert.notSame(1 + EPSILON, 1, '1 is not 1 + EPSILON');
  assert.same(1 + EPSILON / 2, 1, '1 is 1 + EPSILON / 2');
});