LibTest/math/atan2_A04_t01.dart

/*
 * 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.
 */
/**
 * @assertion double atan2(num a, num b)
 * Returns NaN if either argument is NaN.
 * @description Checks result if one of arguments is NaN.
 * @author msyabro
 * @reviewer pagolubev
 * @needsreview undocumented
 */
import "../../Utils/expect.dart";

import "dart:math" as Math;

main() {
  Expect.isTrue(Math.atan2(double.NAN, double.INFINITY).isNaN);
  Expect.isTrue(Math.atan2(double.NAN, double.NEGATIVE_INFINITY).isNaN);
  Expect.isTrue(Math.atan2(double.NAN, 1).isNaN);
  Expect.isTrue(Math.atan2(double.INFINITY, double.NAN).isNaN);
  Expect.isTrue(Math.atan2(double.NEGATIVE_INFINITY, double.NAN).isNaN);
  Expect.isTrue(Math.atan2(1, double.NAN).isNaN);
  Expect.isTrue(Math.atan2(double.NAN, double.NAN).isNaN);
}