public void TestGetProof()
{
var r = new ExtensionNode();
r.Key = "0a0c".HexToBytes();
var b = new BranchNode();
var l1 = new ExtensionNode();
l1.Key = new byte[] { 0x01 };
var l2 = new ExtensionNode();
l2.Key = new byte[] { 0x09 };
var v1 = new LeafNode();
v1.Value = "abcd".HexToBytes();
var v2 = new LeafNode();
v2.Value = "2222".HexToBytes();
var v3 = new LeafNode();
v3.Value = Encoding.ASCII.GetBytes("hello");
var h1 = new HashNode();
h1.Hash = v3.GetHash();
var l3 = new ExtensionNode();
l3.Next = h1;
l3.Key = "0e".HexToBytes();
r.Next = b;
b.Children[0] = l1;
l1.Next = v1;
b.Children[9] = l2;
l2.Next = v2;
b.Children[10] = l3;
var mpt = new MPTTrie(rootHash, mptdb);
Assert.AreEqual(r.GetHash().ToString(), mpt.GetRoot().ToString());
var result = mpt.GetProof("ac01".HexToBytes(), out HashSet <byte[]> proof);
Assert.IsTrue(result);
Assert.AreEqual(4, proof.Count);
Assert.IsTrue(proof.Contains(b.Encode()));
Assert.IsTrue(proof.Contains(r.Encode()));
Assert.IsTrue(proof.Contains(l1.Encode()));
Assert.IsTrue(proof.Contains(v1.Encode()));
}
public void TestGetProof()
{
var b = new BranchNode();
var r = new ExtensionNode {
Key = "0a0c".HexToBytes(), Next = b
};
var v1 = new LeafNode {
Value = "abcd".HexToBytes()
};
var v2 = new LeafNode {
Value = "2222".HexToBytes()
};
var v3 = new LeafNode {
Value = Encoding.ASCII.GetBytes("hello")
};
var h1 = new HashNode(v3.Hash);
var l1 = new ExtensionNode {
Key = new byte[] { 0x01 }, Next = v1
};
var l2 = new ExtensionNode {
Key = new byte[] { 0x09 }, Next = v2
};
var l3 = new ExtensionNode {
Key = "0e".HexToBytes(), Next = h1
};
b.Children[0] = l1;
b.Children[9] = l2;
b.Children[10] = l3;
var mpt = new MPTTrie <TestKey, TestValue>(mptdb.GetSnapshot(), root.Hash);
Assert.AreEqual(r.Hash.ToString(), mpt.Root.Hash.ToString());
HashSet <byte[]> proof = mpt.GetProof("ac01".HexToBytes());
Assert.AreEqual(4, proof.Count);
Assert.IsTrue(proof.Contains(b.Encode()));
Assert.IsTrue(proof.Contains(r.Encode()));
Assert.IsTrue(proof.Contains(l1.Encode()));
Assert.IsTrue(proof.Contains(v1.Encode()));
proof = mpt.GetProof(Array.Empty <byte>());
Assert.IsNull(proof);
}