public override void PerformTest()
{
AlgorithmIdentifier algId = new AlgorithmIdentifier(new DerObjectIdentifier("1.2.2.3"));
byte[] digest = new byte[20];
CertHash certID = new CertHash(algId, digest);
checkConstruction(certID, algId, digest);
certID = CertHash.GetInstance(null);
if (certID != null)
{
Fail("null GetInstance() failed.");
}
try
{
CertHash.GetInstance(new Object());
Fail("GetInstance() failed to detect bad object.");
}
catch (ArgumentException)
{
// expected
}
}
private void checkValues(
CertHash certHash,
AlgorithmIdentifier algId,
byte[] digest)
{
checkMandatoryField("algorithmHash", algId, certHash.HashAlgorithm);
checkMandatoryField("certificateHash", digest, certHash.CertificateHash);
}
private void checkConstruction(
CertHash certHash,
AlgorithmIdentifier algId,
byte[] digest)
{
checkValues(certHash, algId, digest);
certHash = CertHash.GetInstance(certHash);
checkValues(certHash, algId, digest);
Asn1InputStream aIn = new Asn1InputStream(certHash.ToAsn1Object().GetEncoded());
Asn1Sequence seq = (Asn1Sequence) aIn.ReadObject();
certHash = CertHash.GetInstance(seq);
checkValues(certHash, algId, digest);
}