public void testGenerateRandomBasedUUIDWithRandom()
{
// this test will attempt to check for reasonable behavior of the
// generateRandomBasedUUID method
// we need a instance to use
UUIDGenerator uuid_gen = UUIDGenerator.Current;
// first, check that a null passed in causes the appropriate exception
try
{
UUID uuid = uuid_gen.GenerateRandomBasedUUID((Random)null);
fail("Expected exception not thrown");
}
catch (NullReferenceException)
{
// expected exception caught, do nothing
}
catch (Exception ex)
{
fail("unexpected exception caught: " + ex);
}
// for the random UUID generator, we will generate a bunch of
// random UUIDs using a (Secure)Random instance we generated
Random secure_random = new Random();
UUID[] uuid_array = new UUID[SIZE_OF_TEST_ARRAY];
// now create the array of uuids
for (int i = 0; i < uuid_array.Length; i++)
{
uuid_array[i] = uuid_gen.GenerateRandomBasedUUID(secure_random);
}
// check that none of the UUIDs are null
checkUUIDArrayForNonNullUUIDs(uuid_array);
// check that all the uuids were correct variant and version (type-4)
checkUUIDArrayForCorrectVariantAndVersion(
uuid_array, UUID.TYPE_RANDOM_BASED);
// check that all uuids were unique
// NOTE: technically, this test 'could' fail, but statistically
// speaking it should be extremely unlikely unless the
// implementation of SecureRandom is bad
checkUUIDArrayForUniqueness(uuid_array);
}
public void testGenerateRandomBasedUUID()
{
// this test will attempt to check for reasonable behavior of the
// generateRandomBasedUUID method
// we need a instance to use
UUIDGenerator uuid_gen = UUIDGenerator.Current;
// for the random UUID generator, we will generate a bunch of
// random UUIDs
UUID[] uuid_array = new UUID[SIZE_OF_TEST_ARRAY];
// now create the array of uuids
for (int i = 0; i < uuid_array.Length; i++)
{
uuid_array[i] = uuid_gen.GenerateRandomBasedUUID();
}
// check that none of the UUIDs are null
checkUUIDArrayForNonNullUUIDs(uuid_array);
// check that all the uuids were correct variant and version (type-4)
checkUUIDArrayForCorrectVariantAndVersion(
uuid_array, UUID.TYPE_RANDOM_BASED);
// check that all uuids were unique
// NOTE: technically, this test 'could' fail, but statistically
// speaking it should be extremely unlikely unless the implementation
// of (Secure)Random is bad
checkUUIDArrayForUniqueness(uuid_array);
}