public void EncodingIsOrderPreserving()
{
RandUtils randUtils = new RandUtils();
List <ulong> listOfNumbers = new List <ulong>();
List <string> listOfEncodings = new List <string>();
// Generate 100,000 ulongs and insert them in a list
for (int i = 0; i < NumUlongs; i += 1)
{
listOfNumbers.Add(randUtils.GenerateRandomUlong());
}
// Sort the list of numbers
listOfNumbers.Sort();
// Encode the numbers one by one and insert them in the list in order
for (int i = 0; i < NumUlongs; i += 1)
{
listOfEncodings.Add(new string(Base64OrderPreservingAzureCompatEncoding.Encode(listOfNumbers[i], Base64OrderPreservingAzureCompatEncoding.SortOrders.Ordinal)));
}
// Check that the list of encoding numbers is already sorted
List <string> orderedListOfEncodings = listOfEncodings.OrderBy(x => x, StringComparer.Ordinal).ToList();
CollectionAssert.AreEqual(listOfEncodings, orderedListOfEncodings);
}
public void EncodeDecode()
{
RandUtils randUtils = new RandUtils();
// The Assert is placed in the for-loop so that if we fail, we fail early
for (int i = 0; i < NumUlongs; i += 1)
{
ulong current = randUtils.GenerateRandomUlong();
char[] ordinalEncoding = Base64OrderPreservingAzureCompatEncoding.Encode(current, Base64OrderPreservingAzureCompatEncoding.SortOrders.Ordinal);
Assert.AreEqual(current, Base64OrderPreservingAzureCompatEncoding.Decode(ordinalEncoding, Base64OrderPreservingAzureCompatEncoding.SortOrders.Ordinal));
char[] lexiEncoding = Base64OrderPreservingAzureCompatEncoding.Encode(current, Base64OrderPreservingAzureCompatEncoding.SortOrders.Lexicographic);
Assert.AreEqual(current, Base64OrderPreservingAzureCompatEncoding.Decode(lexiEncoding, Base64OrderPreservingAzureCompatEncoding.SortOrders.Lexicographic));
}
}
