public void ConsumeTest()
{
var embeddedSideEffectResult = 0;
System.Collections.Generic.IEnumerable <int> expression = from dummy in Some(unit)
from i in List(2, 3, 5)
let _ = fun(() => embeddedSideEffectResult += i)()
select i;
Assert.Equal(0, embeddedSideEffectResult);
expression.Consume();
Assert.Equal(2 + 3 + 5, embeddedSideEffectResult);
}