public void Any_Predicate_With_ValidData_Must_Succeed(int[] source, Func <int, bool> predicate)
        {
            // Arrange
            var wrapped  = Wrap.AsValueEnumerable(source);
            var expected =
                System.Linq.Enumerable.Any(source, predicate);

            // Act
            var result = ValueEnumerableExtensions
                         .Any <Wrap.ValueEnumerableWrapper <int>, Wrap.Enumerator <int>, int>(wrapped, predicate);

            // Assert
            _ = result.Must()
                .BeEqualTo(expected);
        }
        public void Any_PredicateAt_With_Null_Must_Throw()
        {
            // Arrange
            var source    = new int[0];
            var wrapped   = Wrap.AsValueEnumerable(source);
            var predicate = (PredicateAt <int>)null;

            // Act
            Action action = () => _ = ValueEnumerableExtensions
                                      .Any <Wrap.ValueEnumerableWrapper <int>, Wrap.Enumerator <int>, int>(wrapped, predicate);

            // Assert
            _ = action.Must()
                .Throw <ArgumentNullException>()
                .EvaluateTrue(exception => exception.ParamName == "predicate");
        }