public void GetMetadata_Alias()
{
var info = HashingAlgorithm.GetAlgorithmMetadata("id");
Assert.IsNotNull(info);
Assert.AreEqual("identity", info.Name);
Assert.AreEqual(0, info.Code);
Assert.AreEqual(0, info.DigestSize);
Assert.IsNotNull(info.Hasher);
}
public void GetMetadata()
{
var info = HashingAlgorithm.GetAlgorithmMetadata("sha3-256");
Assert.IsNotNull(info);
Assert.AreEqual("sha3-256", info.Name);
Assert.AreEqual(0x16, info.Code);
Assert.AreEqual(256 / 8, info.DigestSize);
Assert.IsNotNull(info.Hasher);
}
public void GetHasher()
{
using (var hasher = HashingAlgorithm.GetAlgorithm("sha3-256"))
{
Assert.IsNotNull(hasher);
var input = new byte[] { 0xe9 };
var expected = "f0d04dd1e6cfc29a4460d521796852f25d9ef8d28b44ee91ff5b759d72c1e6d6".ToHexBuffer();
var actual = hasher.ComputeHash(input);
CollectionAssert.AreEqual(expected, actual);
}
}
/// <summary>
/// Remove an IPFS hashing algorithm from the registry.
/// </summary>
/// <param name="algorithm">
/// The <see cref="HashingAlgorithm"/> to remove.
/// </param>
public static void Deregister(HashingAlgorithm algorithm)
{
Names.Remove(algorithm.Name);
Codes.Remove(algorithm.Code);
}
public void HashingAlgorithm_Alias_Target_Is_Bad()
{
ExceptionAssert.Throws <ArgumentException>(() => HashingAlgorithm.RegisterAlias("foo", " "));
}
public void HashingAlgorithm_Alias_Target_Does_Not_Exist()
{
ExceptionAssert.Throws <ArgumentException>(() => HashingAlgorithm.RegisterAlias("foo", "sha1-x"));
}
public void HashingAlgorithm_Alias_Already_Exists()
{
ExceptionAssert.Throws <ArgumentException>(() => HashingAlgorithm.RegisterAlias("id", "identity"));
}
public void HashingAlgorithm_Bad_Alias()
{
ExceptionAssert.Throws <ArgumentNullException>(() => HashingAlgorithm.RegisterAlias(null, "sha1"));
ExceptionAssert.Throws <ArgumentNullException>(() => HashingAlgorithm.RegisterAlias("", "sha1"));
ExceptionAssert.Throws <ArgumentNullException>(() => HashingAlgorithm.RegisterAlias(" ", "sha1"));
}
public void HashingAlgorithm_Number_Already_Exists()
{
ExceptionAssert.Throws <ArgumentException>(() => HashingAlgorithm.Register("sha1-x", 0x11, 1));
}
public void HashingAlgorithm_Bad_Name()
{
ExceptionAssert.Throws <ArgumentNullException>(() => HashingAlgorithm.Register(null, 1, 1));
ExceptionAssert.Throws <ArgumentNullException>(() => HashingAlgorithm.Register("", 1, 1));
ExceptionAssert.Throws <ArgumentNullException>(() => HashingAlgorithm.Register(" ", 1, 1));
}
public void GetMetadata_Unknown()
{
ExceptionAssert.Throws <KeyNotFoundException>(() => HashingAlgorithm.GetAlgorithmMetadata("unknown"));
}
