public void Count_With_ValidData_Must_Succeed(int[] source)
{
// Arrange
var wrapped = Wrap
.AsValueReadOnlyList(source);
var expected =
System.Linq.Enumerable.Count(source);
// Act
var result = ReadOnlyList
.Count <Wrap.ValueReadOnlyList <int>, int>(wrapped);
// Assert
_ = result.Must()
.BeEqualTo(expected);
}