private void AssertElementHash(Model model, string relativeUri, string expectedHash)
{
var element = model.Resolve(new Uri(relativeUri, UriKind.Relative));
var elementHash = Convert.ToBase64String(ModelHasher.CreateHash(element));
Assert.AreEqual(expectedHash, elementHash);
}
public void Hash_ComputedCorrectly()
{
var model = LoadRailwayModel(new ModelRepository());
var referenceModel = LoadRailwayModel(new ModelRepository());
var hash1 = Convert.ToBase64String(ModelHasher.CreateHash(model));
var hash2 = Convert.ToBase64String(ModelHasher.CreateHash(referenceModel));
Assert.AreEqual(hash1, hash2);
Assert.AreEqual(hash1, "9AveIiH2st2d6elHogWwTPQQXGtPVrtkRcSffb9J+LGtXjJIS+EoKxCiTDKD2QjZpLd/cLX1DIS2lFYYEfZiVg==");
AssertElementHash(model.Model, "#//@invalids.0/@definedBy.24/@elements.5", "iEjxOMgHlUQ4DVraE6OLqtB6YejmpRQBnzUJoYCLyENqTrjX8Grpln2C38v0VGppvwSGcWy2ORQdAdTiEl4Wng==");
AssertElementHash(model.Model, "#//@invalids.0/@definedBy.24", "JIxRgzBllkPg7Y3sYxRSP8NQ40xwLuRVhfFUNw8tNN7ngOjVT/km6nT0KGhitqX61txCKjmN/469hD14Ewb3TA==");
AssertElementHash(model.Model, "#//@invalids.0/@follows.1", "trtBI8OljhfVs4oLQ/ZQwsSs5sxxhe4kbx1ABXOEc+PYjj8pWWxwqpysvcJEeq+nPGGvvNUJULNNAm2FMu+ThA==");
AssertElementHash(model.Model, "#//@invalids.0", "28ycfeifjclgD25XnW/BKpka6ueUbBHZxWW8/E+i4EMf7AtylXqAgHvfIj3V2pQg06mHjfUhKj2XT1TjlSiPLg==");
var sw = model.Invalids.OfType <Switch>().FirstOrDefault();
sw.CurrentPosition = sw.CurrentPosition + 1;
var hash3 = Convert.ToBase64String(ModelHasher.CreateHash(model));
Assert.AreNotEqual(hash1, hash3);
}
public void Hash_Debug_ComputedCorrectly()
{
var model = LoadDebugModel(new ModelRepository());
var referenceModel = LoadDebugModel(new ModelRepository());
var hash1 = Convert.ToBase64String(ModelHasher.CreateHash(model));
var hash2 = Convert.ToBase64String(ModelHasher.CreateHash(referenceModel));
Assert.AreEqual(hash1, hash2);
Assert.AreEqual(hash1, "Mvm7t+x8xMt23q8LYGI1UXtCUjb3toQVYQpzDcn0OZewW77JcTLyWb0X9qt8sgC1660s22VluIADXZ45AKx4Xw==");
}
public void DynamicDeserializeAndHash_DebugModel_SameHashcodeAsStronglyTypedModel()
{
var baseUri = "http://github.com/NMFCode/NMF/Models/Models.Test/railway.railway";
var repository = new ModelRepository();
var metamodel = repository.Resolve($"debug.nmf");
var serializer = new DynamicModelSerializer(metamodel.RootElements[0] as INamespace);
var instance = serializer.Deserialize($"debug.debug") as IModelElement;
var model = new Model();
model.ModelUri = new Uri(baseUri);
model.RootElements.Add(instance);
var hash = Convert.ToBase64String(ModelHasher.CreateHash(instance));
Assert.AreEqual("Mvm7t+x8xMt23q8LYGI1UXtCUjb3toQVYQpzDcn0OZewW77JcTLyWb0X9qt8sgC1660s22VluIADXZ45AKx4Xw==", hash);
}
private void TestLoadAndSerializeSucceeds(string baseName)
{
var repository = new ModelRepository();
var metamodel = repository.Resolve($"{baseName}.nmf");
var serializer = new DynamicModelSerializer(metamodel.RootElements[0] as INamespace);
var instance = serializer.Deserialize($"{baseName}.{baseName}") as IModelElement;
var originalHash = Convert.ToBase64String(ModelHasher.CreateHash(instance));
using (var ms = new MemoryStream())
{
serializer.Serialize(instance, ms);
ms.Position = 0;
var newInstance = serializer.Deserialize(ms) as IModelElement;
var newHash = Convert.ToBase64String(ModelHasher.CreateHash(newInstance));
Assert.AreEqual(originalHash, newHash);
}
}
public void DynamicDeserializeAndHash_RailwayModel_SameHashcodeAsStronglyTypedModel()
{
var baseUri = "http://github.com/NMFCode/NMF/Models/Models.Test/railway.railway";
var repository = new ModelRepository();
var metamodel = repository.Resolve($"railway.nmf");
var serializer = new DynamicModelSerializer(metamodel.RootElements[0] as INamespace);
var instance = serializer.Deserialize($"railway.railway") as IModelElement;
var model = new Model();
model.ModelUri = new Uri(baseUri);
model.RootElements.Add(instance);
AssertElementHash(model, "#//@invalids.0/@definedBy.24/@elements.5", "iEjxOMgHlUQ4DVraE6OLqtB6YejmpRQBnzUJoYCLyENqTrjX8Grpln2C38v0VGppvwSGcWy2ORQdAdTiEl4Wng==");
AssertElementHash(model, "#//@invalids.0/@definedBy.24", "JIxRgzBllkPg7Y3sYxRSP8NQ40xwLuRVhfFUNw8tNN7ngOjVT/km6nT0KGhitqX61txCKjmN/469hD14Ewb3TA==");
AssertElementHash(model, "#//@invalids.0/@follows.1", "trtBI8OljhfVs4oLQ/ZQwsSs5sxxhe4kbx1ABXOEc+PYjj8pWWxwqpysvcJEeq+nPGGvvNUJULNNAm2FMu+ThA==");
AssertElementHash(model, "#//@invalids.0", "28ycfeifjclgD25XnW/BKpka6ueUbBHZxWW8/E+i4EMf7AtylXqAgHvfIj3V2pQg06mHjfUhKj2XT1TjlSiPLg==");
var hash = Convert.ToBase64String(ModelHasher.CreateHash(instance));
Assert.AreEqual("9AveIiH2st2d6elHogWwTPQQXGtPVrtkRcSffb9J+LGtXjJIS+EoKxCiTDKD2QjZpLd/cLX1DIS2lFYYEfZiVg==", hash);
}
