public void Removed_Added_Items_Should_Be_Marked_As_Unchanged()
{
// Arrange
var database = new MockNorthwind();
var changeTracker = new ChangeTrackingCollection<Product>();
changeTracker.Tracking = true;
var product = new Product
{
ProductId = 100,
ProductName = "Test Beverage",
CategoryId = 1,
Category = database.Categories[0],
UnitPrice = 10M
};
// Act
changeTracker.Add(product);
product.UnitPrice++;
changeTracker.Remove(product);
// Assert
Assert.AreEqual(TrackingState.Unchanged, product.TrackingState);
}
public void Removed_Added_Modified_Items_Should_Not_Have_ModifiedProperties()
{
// Arrange
var database = new MockNorthwind();
var changeTracker = new ChangeTrackingCollection<Product>(true);
var product = new Product
{
ProductId = 100,
ProductName = "Test Beverage",
CategoryId = 1,
Category = database.Categories[0],
UnitPrice = 10M
};
// Act
changeTracker.Add(product);
product.UnitPrice++;
changeTracker.Remove(product);
// Assert
Assert.IsTrue(product.ModifiedProperties == null
|| product.ModifiedProperties.Count == 0);
}
public void Added_Items_With_Enumerable_Ctor_Should_Be_Marked_As_Added()
{
// Arrange
var database = new MockNorthwind();
var products = new List<Product> { database.Products[0] };
var changeTracker = new ChangeTrackingCollection<Product>(products);
var product = new Product
{
ProductId = 100,
ProductName = "Test Beverage",
CategoryId = 1,
Category = database.Categories[0],
UnitPrice = 10M
};
// Act
changeTracker.Add(product);
// Assert
Assert.AreEqual(TrackingState.Added, product.TrackingState);
}
