public void IsNaN()
{
Assert.DoesNotThrow(() => Assert.IsNaN(float.NaN));
Assert.DoesNotThrow(() => Assert.IsNaN(double.NaN));
Assert.ThrowsExact <AssertionException>(() => Assert.IsNaN(float.PositiveInfinity));
Assert.ThrowsExact <AssertionException>(() => Assert.IsNaN(float.NegativeInfinity));
Assert.ThrowsExact <AssertionException>(() => Assert.IsNaN(1.34f));
Assert.ThrowsExact <AssertionException>(() => Assert.IsNaN(double.PositiveInfinity));
Assert.ThrowsExact <AssertionException>(() => Assert.IsNaN(double.NegativeInfinity));
Assert.ThrowsExact <AssertionException>(() => Assert.IsNaN(1.34d));
}