public void Can_add_weak_entity_types()
{
IMutableModel model = new Model();
var customerType = model.AddEntityType(typeof(Customer));
var idProperty = customerType.GetOrAddProperty(Customer.IdProperty);
var customerKey = customerType.AddKey(idProperty);
var dependentOrderType = model.AddEntityType(typeof(Order), nameof(Customer.Orders), customerType);
var fkProperty = dependentOrderType.AddProperty("ShadowId", typeof(int));
var orderKey = dependentOrderType.AddKey(fkProperty);
var fk = dependentOrderType.AddForeignKey(fkProperty, customerKey, customerType);
var index = dependentOrderType.AddIndex(fkProperty);
Assert.Same(fkProperty, dependentOrderType.GetProperties().Single());
Assert.Same(orderKey, dependentOrderType.GetKeys().Single());
Assert.Same(fk, dependentOrderType.GetForeignKeys().Single());
Assert.Same(index, dependentOrderType.GetIndexes().Single());
Assert.Equal(new[] { customerType, dependentOrderType }, model.GetEntityTypes());
Assert.True(model.HasEntityTypeWithDefiningNavigation(typeof(Order)));
Assert.True(model.HasEntityTypeWithDefiningNavigation(typeof(Order).DisplayName()));
Assert.Same(
dependentOrderType,
model.FindEntityType(typeof(Order).DisplayName(), nameof(Customer.Orders), customerType));
Assert.Same(
dependentOrderType,
model.FindEntityType(typeof(Order).DisplayName(), nameof(Customer.Orders), (IEntityType)customerType));
Assert.Equal(
CoreStrings.ClashingWeakEntityType(typeof(Order).DisplayName(fullName: false)),
Assert.Throws <InvalidOperationException>(() => model.AddEntityType(typeof(Order))).Message);
Assert.Equal(
CoreStrings.ClashingNonWeakEntityType(
nameof(Customer) + "." + nameof(Customer.Orders) + "#"
+ nameof(Order) + "." + nameof(Order.Customer) + "#" + nameof(Customer)),
Assert.Throws <InvalidOperationException>(
() => model.AddEntityType(typeof(Customer), nameof(Order.Customer), dependentOrderType)).Message);
Assert.Equal(
CoreStrings.ForeignKeySelfReferencingDependentEntityType(
nameof(Customer) + "." + nameof(Customer.Orders) + "#" + nameof(Order)),
Assert.Throws <InvalidOperationException>(
() => dependentOrderType.AddForeignKey(fkProperty, orderKey, dependentOrderType)).Message);
Assert.Equal(
CoreStrings.EntityTypeInUseByForeignKey(
nameof(Customer) + "." + nameof(Customer.Orders) + "#" + nameof(Order),
nameof(Customer), fk.Properties.Format()),
Assert.Throws <InvalidOperationException>(() => model.RemoveEntityType(dependentOrderType)).Message);
dependentOrderType.RemoveForeignKey(fk.Properties, fk.PrincipalKey, fk.PrincipalEntityType);
Assert.Same(
dependentOrderType, model.RemoveEntityType(
typeof(Order), nameof(Customer.Orders), customerType));
Assert.Null(((EntityType)dependentOrderType).Builder);
Assert.Null(model.RemoveEntityType(dependentOrderType));
}
