public void Can_remove_foreign_keys()
{
var customerType = new EntityType(typeof(Customer), new Model());
var customerKey = customerType.GetOrAddKey(customerType.GetOrAddProperty(Customer.IdProperty));
var orderType = new EntityType(typeof(Order), new Model());
var customerFk1 = orderType.GetOrAddProperty(Order.CustomerIdProperty);
var customerFk2 = orderType.GetOrAddProperty("IdAgain", typeof(int), shadowProperty: true);
Assert.Equal(
Strings.ForeignKeyNotFound("{'" + Order.CustomerIdProperty.Name + "'}", typeof(Order).FullName),
Assert.Throws<ModelItemNotFoundException>(() => orderType.GetForeignKey(customerFk1)).Message);
Assert.Null(orderType.RemoveForeignKey(new ForeignKey(new[] { customerFk2 }, customerKey)));
var fk1 = orderType.AddForeignKey(customerFk1, customerKey);
var fk2 = orderType.AddForeignKey(customerFk2, customerKey);
Assert.Equal(new[] { fk1, fk2 }, orderType.ForeignKeys.ToArray());
Assert.Same(fk1, orderType.RemoveForeignKey(fk1));
Assert.Null(orderType.RemoveForeignKey(fk1));
Assert.Equal(
Strings.ForeignKeyNotFound("{'" + Order.CustomerIdProperty.Name + "'}", typeof(Order).FullName),
Assert.Throws<ModelItemNotFoundException>(() => orderType.GetForeignKey(customerFk1)).Message);
Assert.Equal(new[] { fk2 }, orderType.ForeignKeys.ToArray());
Assert.Same(fk2, orderType.RemoveForeignKey(new ForeignKey(new[] { customerFk2 }, customerKey)));
Assert.Empty(orderType.ForeignKeys);
}
public void Can_get_or_add_a_foreign_key()
{
var customerType = new EntityType(typeof(Customer), new Model());
var idProperty = customerType.GetOrAddProperty(Customer.IdProperty);
var customerKey = customerType.GetOrAddKey(idProperty);
var orderType = new EntityType(typeof(Order), new Model());
var customerFk1 = orderType.GetOrAddProperty(Order.CustomerIdProperty);
var customerFk2 = orderType.GetOrAddProperty("IdAgain", typeof(int), shadowProperty: true);
var fk1 = orderType.AddForeignKey(customerFk1, customerKey);
var fk2 = orderType.GetOrAddForeignKey(customerFk2, customerKey);
Assert.NotNull(fk2);
Assert.NotEqual(fk1, fk2);
Assert.Same(fk2, orderType.GetForeignKey(customerFk2));
Assert.Same(fk2, orderType.FindForeignKey(customerFk2));
Assert.Equal(new[] { fk1, fk2 }, orderType.ForeignKeys.ToArray());
Assert.Same(fk2, orderType.GetOrAddForeignKey(customerFk2, customerKey));
Assert.Equal(new[] { fk1, fk2 }, orderType.ForeignKeys.ToArray());
}