// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// @dart = 2.9

/// @assertion num pow(num x, num exponent)
/// Returns x to the power of exponent.
/// @description Checks that this method throws an Error if either [x] or
/// [exponent] is null (not a number).
/// @author msyabro
/// @reviewer pagolubev
/// @needsreview undocumented


import "dart:math" as Math;
import "../../Utils/expect.dart";

check(var a1, var a2) {
  Expect.throws(() {
    Math.pow(a1, a2);
  });
}

main() {
  check(null, 1);
  check(1, null);
  check(0, null);
  check(null, 0);
  check(double.infinity, null);
  check(null, double.infinity);
  check(null, double.nan);
  check(double.nan, null);
  check(double.negativeInfinity, null);
  check(null, double.negativeInfinity);
  check(null, null);
}