text: // Copyright (C) 2022 Igalia, S.L. All rights reserved.
  // This code is governed by the BSD license found in the LICENSE file.
  
  /*---
  esid: sec-temporal.plainyearmonth.prototype.since
  description: Negative zero, as an extended year, is rejected
  features: [Temporal, arrow-function]
  ---*/
  
  const invalidStrings = [
    "-000000-10-31",
    "-000000-10-31T17:45",
    "-000000-10-31T17:45Z",
    "-000000-10-31T17:45+01:00",
    "-000000-10-31T17:45+00:00[UTC]",
  ];
  const instance = new Temporal.PlainYearMonth(2000, 5);
  invalidStrings.forEach((arg) => {
    assert.throws(
      RangeError,
      () => instance.since(arg),
      "reject minus zero as extended year"
    );
  });
  