public void Diff_is_not_same()
{
byte[] bytesA = new byte[32];
new Random(42).NextBytes(bytesA);
byte[] bytesB = new byte[32];
Hash32 a = new Hash32(bytesA);
Hash32 b = new Hash32(bytesB);
Assert.AreNotEqual(a, b);
Assert.False(a.Equals(b));
Assert.False(b.Equals(a));
Assert.False(a == b);
Assert.False(!(a != b));
Assert.False(a.Equals((object)b));
Assert.False(a.Equals(b));
Assert.AreNotEqual(a.GetHashCode(), b.GetHashCode());
Assert.AreNotEqual(a.ToString(), b.ToString());
}
public void Same_is_same()
{
byte[] bytesA = new byte[32];
new Random(42).NextBytes(bytesA);
byte[] bytesB = new byte[32];
bytesA.AsSpan().CopyTo(bytesB);
Hash32 a = new Hash32(bytesA);
Hash32 b = new Hash32(bytesB);
Assert.AreEqual(a, b);
Assert.True(a.Equals(b));
Assert.True(b.Equals(a));
Assert.True(a == b);
Assert.True(!(a != b));
Assert.True(a.Equals((object)b));
Assert.True(a.Equals(b));
Assert.AreEqual(a.GetHashCode(), b.GetHashCode());
Assert.AreEqual(a.ToString(), b.ToString());
Assert.AreEqual(0, a.CompareTo(b));
}
/// <summary>
/// Check if 'leaf' at 'index' verifies against the Merkle 'root' and 'branch'
/// </summary>
public bool IsValidMerkleBranch(Hash32 leaf, IReadOnlyList<Hash32> branch, int depth, ulong index, Hash32 root)
{
Hash32 value = leaf;
for (int testDepth = 0; testDepth < depth; testDepth++)
{
Hash32 branchValue = branch[testDepth];
ulong indexAtDepth = index / ((ulong) 1 << testDepth);
if (indexAtDepth % 2 == 0)
{
// Branch on right
value = _cryptographyService.Hash(value, branchValue);
}
else
{
// Branch on left
value = _cryptographyService.Hash(branchValue, value);
}
}
return value.Equals(root);
}