public async void FirstAsync_With_Empty_Must_Return_None(int[] source)
{
// Arrange
var wrapped = Wrap
.AsAsyncValueEnumerable(source);
// Act
var result = await AsyncValueEnumerableExtensions
.FirstAsync <Wrap.AsyncValueEnumerableWrapper <int>, Wrap.AsyncEnumerator <int>, int>(wrapped);
// Assert
_ = result.Must()
.BeOfType <Option <int> >()
.EvaluateTrue(option => option.IsNone);
}
public async ValueTask FirstAsync_With_ValidData_Must_Return_Some(int[] source)
{
// Arrange
var wrapped = Wrap
.AsAsyncValueEnumerable(source);
var expected = Enumerable
.First(source);
// Act
var result = await AsyncValueEnumerableExtensions
.FirstAsync <Wrap.AsyncValueEnumerableWrapper <int>, Wrap.AsyncEnumerator <int>, int>(wrapped);
// Assert
_ = result.Match(
value => value.Must().BeEqualTo(expected),
() => throw new Exception());
}