public void Detects_primary_key_change()
{
var model = BuildModel();
var configuration = TestHelpers.CreateContextConfiguration(model);
var stateManager = configuration.Services.StateManager;
var entityType = model.GetEntityType(typeof(Category));
var keyProperty = entityType.GetProperty("Id");
var category = new Category {
Id = -1
};
var principalEntry = stateManager.StartTracking(stateManager.GetOrCreateEntry(category));
principalEntry.RelationshipsSnapshot[keyProperty] = -1;
principalEntry.EntityState = EntityState.Added;
var notifierMock = new Mock <StateEntryNotifier>();
var changeDetector = new ChangeDetector(configuration, notifierMock.Object);
Assert.Same(principalEntry, stateManager.TryGetEntry(new SimpleEntityKey <int>(entityType, -1)));
category.Id = 1;
changeDetector.PropertyChanged(principalEntry, keyProperty);
notifierMock.Verify(m => m.PrincipalKeyPropertyChanged(principalEntry, keyProperty, -1, 1));
Assert.Equal(1, principalEntry.RelationshipsSnapshot[keyProperty]);
Assert.Same(principalEntry, stateManager.TryGetEntry(new SimpleEntityKey <int>(entityType, 1)));
}
public void Ignores_non_principal_key_change()
{
var model = BuildModel();
var configuration = TestHelpers.CreateContextConfiguration(model);
var stateManager = configuration.Services.StateManager;
var entityType = model.GetEntityType(typeof(Category));
var property = entityType.GetProperty("Name");
var category = new Category {
Id = -1, Name = "Blue"
};
var principalEntry = stateManager.StartTracking(stateManager.GetOrCreateEntry(category));
principalEntry.RelationshipsSnapshot[property] = "Blue";
principalEntry.EntityState = EntityState.Added;
var notifierMock = new Mock <StateEntryNotifier>();
var changeDetector = new ChangeDetector(configuration, notifierMock.Object);
Assert.Same(principalEntry, stateManager.TryGetEntry(new SimpleEntityKey <int>(entityType, -1)));
category.Name = "Red";
changeDetector.PropertyChanged(principalEntry, property);
notifierMock.Verify(m => m.PrincipalKeyPropertyChanged(
It.IsAny <StateEntry>(), It.IsAny <IProperty>(), It.IsAny <object>(), It.IsAny <object>()), Times.Never);
Assert.Equal("Blue", principalEntry.RelationshipsSnapshot[property]);
Assert.Same(principalEntry, stateManager.TryGetEntry(new SimpleEntityKey <int>(entityType, -1)));
}
public void Ignores_no_change_to_principal_key_in_sidecar()
{
var model = BuildModel();
var configuration = TestHelpers.CreateContextConfiguration(model);
var stateManager = configuration.Services.StateManager;
var entityType = model.GetEntityType(typeof(Category));
var keyProperty = entityType.GetProperty("PrincipalId");
var category = new Category {
Id = -1, PrincipalId = 77
};
var principalEntry = stateManager.StartTracking(stateManager.GetOrCreateEntry(category));
principalEntry.RelationshipsSnapshot[keyProperty] = 77;
principalEntry.EntityState = EntityState.Added;
var notifierMock = new Mock <StateEntryNotifier>();
var changeDetector = new ChangeDetector(configuration, notifierMock.Object);
Assert.Same(principalEntry, stateManager.TryGetEntry(new SimpleEntityKey <int>(entityType, -1)));
principalEntry.AddSidecar(new StoreGeneratedValuesFactory().Create(principalEntry))[keyProperty] = 77;
changeDetector.PropertyChanged(principalEntry, keyProperty);
notifierMock.Verify(m => m.PrincipalKeyPropertyChanged(
It.IsAny <StateEntry>(), It.IsAny <IProperty>(), It.IsAny <object>(), It.IsAny <object>()), Times.Never);
Assert.Equal(77, principalEntry.RelationshipsSnapshot[keyProperty]);
Assert.Same(principalEntry, stateManager.TryGetEntry(new SimpleEntityKey <int>(entityType, -1)));
}
public void Ignores_no_change_to_principal_key()
{
var notifierMock = new Mock <StateEntryNotifier>();
var model = BuildModel();
var contextServices = CreateContextServices(notifierMock.Object, model);
var stateManager = contextServices.GetRequiredService <StateManager>();
var entityType = model.GetEntityType(typeof(Category));
var keyProperty = entityType.GetProperty("PrincipalId");
var category = new Category {
Id = -1, PrincipalId = 77
};
var principalEntry = stateManager.StartTracking(stateManager.GetOrCreateEntry(category));
principalEntry.RelationshipsSnapshot[keyProperty] = 77;
principalEntry.EntityState = EntityState.Added;
var changeDetector = new ChangeDetector(new DbContextService <IModel>(model));
Assert.Same(principalEntry, stateManager.TryGetEntry(new SimpleEntityKey <int>(entityType, -1)));
changeDetector.PropertyChanged(principalEntry, keyProperty);
notifierMock.Verify(m => m.PrincipalKeyPropertyChanged(
It.IsAny <StateEntry>(), It.IsAny <IProperty>(), It.IsAny <object>(), It.IsAny <object>()), Times.Never);
Assert.Equal(77, principalEntry.RelationshipsSnapshot[keyProperty]);
Assert.Same(principalEntry, stateManager.TryGetEntry(new SimpleEntityKey <int>(entityType, -1)));
}