public ContractsTests(ISeries <K, V> testSeries,
SortedMap <K, V> materializedSeries,
SortedMap <K, V> ephemeralSeries = null)
{
_testSeries = testSeries ?? throw new ArgumentNullException(nameof(testSeries));
_materializedSeries = materializedSeries ?? throw new ArgumentNullException(nameof(materializedSeries));
_ephemeralSeries = ephemeralSeries;
if (!ReferenceEquals(null, ephemeralSeries))
{
var eqc = EqualityComparer <V> .Default;
// TODO (UX) Spreads signature conflicts with LINQ, easy to fix but not very convenient
var intersect = materializedSeries.Zip(ephemeralSeries, (l, r) =>
{
if (!eqc.Equals(l, r))
{
throw new ArgumentException("materializedSeries and ephemeralSeries contain different values for the same keys");
}
else
{
return(l);
}
});
if (intersect.First.IsMissing)
{
foreach (var kvp in materializedSeries.Take(10))
{
ephemeralSeries.Set(kvp.Key, kvp.Value);
}
}
}
}