private void Validate_IsProperSubsetOf(PooledSet <T> set, Span <T> span)
{
bool setContainsValueNotInEnumerable = false;
bool enumerableContainsValueNotInSet = false;
IEqualityComparer <T> comparer = set.Comparer;
foreach (T value in set) // Every value in Set must be in Enumerable
{
if (!SpanContains(span, value, comparer))
{
setContainsValueNotInEnumerable = true;
break;
}
}
foreach (T value in span) // Enumerable must contain at least one value not in Set
{
if (!set.Contains(value))
{
enumerableContainsValueNotInSet = true;
break;
}
}
Assert.Equal(!setContainsValueNotInEnumerable && enumerableContainsValueNotInSet, set.IsProperSubsetOf(span));
}