private static void CalculateHash_ValidateDeterminism(HashingAlgorithmSpecification algorithm, SaltingMode saltingMode, Boolean shouldBeDeterministic)
{
using (var randomnessProvider = RandomNumberGenerator.Create())
{
// Arrange.
var target = new HashingStringProcessor(randomnessProvider);
var plaintextObject = "䆟`ಮ䷆ʘ‣⦸⏹ⰄͶa✰ṁ亡Zᨖ0༂⽔9㗰";
// Act.
var firstHashValue = target.CalculateHash(plaintextObject, algorithm, saltingMode);
// Assert.
firstHashValue.Should().NotBeNullOrEmpty();
firstHashValue.Count(value => value == 0x00).Should().NotBe(firstHashValue.Length);
// Act.
var secondHashValue = target.CalculateHash(plaintextObject, algorithm, saltingMode);
// Assert.
secondHashValue.Should().NotBeNullOrEmpty();
secondHashValue.Length.Should().Be(firstHashValue.Length);
secondHashValue.Count(value => value == 0x00).Should().NotBe(secondHashValue.Length);
if (shouldBeDeterministic)
{
// Assert.
firstHashValue.ComputeThirtyTwoBitHash().Should().Be(secondHashValue.ComputeThirtyTwoBitHash());
}
else
{
// Assert.
firstHashValue.ComputeThirtyTwoBitHash().Should().NotBe(secondHashValue.ComputeThirtyTwoBitHash());
}
}
}
private static void Constructor_ShouldProduceDesiredResults(Int32 blockCount, HashingAlgorithmSpecification algorithm)
{
using (var randomnessProvider = RandomNumberGenerator.Create())
{
// Arrange.
var hashingProcessor = new HashingStringProcessor(randomnessProvider);
var blocks = new String[blockCount];
randomnessProvider.FillStringArray(blocks, 1, 8, false, true, true, true, false, false, false);
// Act.
var target = new HashTree <String>(hashingProcessor, algorithm, blocks);
var duplicate = new HashTree <String>(hashingProcessor, algorithm, blocks);
// Assert.
target.LeafCount.Should().Be(blockCount);
target.RootNode.Should().NotBeNull();
target.RootNode.Value.Should().NotBeNull();
target.RootNode.Value.ComputeThirtyTwoBitHash().Should().Be(duplicate.RootNode.Value.ComputeThirtyTwoBitHash());
target.RootNode.ToString().Should().Be(Convert.ToBase64String(target.RootNode.Value));
ValidateDigestLength(blockCount, target.RootNode.Value, algorithm);
ValidateTreeHeight(blockCount, target.RootNode.Height);
}
}
