public void FillInt64Array_ShouldProduceDesiredResults_ForUnboundedInvocation()
{
// Arrange.
var arrayLength = 270;
var array = new Int64[arrayLength];
using (var randomNumberGenerator = RandomNumberGenerator.Create())
{
// Act.
randomNumberGenerator.FillInt64Array(array);
// Assert.
array.Length.Should().Be(arrayLength);
array.GroupBy(value => value).Any(group => group.Count() > 2).Should().BeFalse();
}
}