Running my test I get the following error:
System.Data.Entity.ModelConfiguration.ModelValidationException : One or more validation errors were detected during model generation:
Castle.Proxies.ApplicationUserLogin: : EntityType 'ApplicationUserLogin' has no key defined. Define the key for this EntityType. Castle.Proxies.ApplicationUserRole: : EntityType 'ApplicationUserRole' has no key defined. Define the key for this EntityType. ApplicationUserLogins: EntityType: EntitySet 'ApplicationUserLogins' is based on type 'ApplicationUserLogin' that has no keys defined. ApplicationUserRoles: EntityType: EntitySet 'ApplicationUserRoles' is based on type 'ApplicationUserRole' that has no keys defined.
I have located the test to fail on a override for SaveChanges and specifically ChangeTracker.Entries().
I found the following thread suggesting to call OnModelCreating that would solve the problem but this did not work for me.
https://stackoverflow.com/a/34786782/3850405
The error is only occurring when I test the code, running it from a Controller works fine.
Test source:
https://msdn.microsoft.com/en-us/library/dn314429(v=vs.113).aspx#code-snippet-4
NUnit test:
[Test]
public void CreateCustomerNumber_saves_a_CustomerNumber_via_context()
{
var mockSet = new Mock<DbSet<CustomerNumber>>();
var mockContext = new Mock<ApplicationDbContext>();
//mockContext.Object.TestModelCreation(new DbModelBuilder());
mockContext.Setup(c => c.CustomerNumbers).Returns(mockSet.Object);
var service = new CustomerNumberService(mockContext.Object);
service.Add(new CustomerNumberViewModel(){CustomerNumber = "AAA"});
mockSet.Verify(m => m.Add(It.IsAny<CustomerNumber>()), Times.Once());
mockContext.Verify(m => m.SaveChanges(), Times.Once());
}
Service, works fine calling directly:
public void Add(CustomerNumberViewModel model)
{
var customerNumber = new CustomerNumber()
{
CustomerNumber = model.CustomerNumber,
};
db.CustomerNumbers.Add(customerNumber);
//SaveChanges fails
db.SaveChanges();
}
ApplicationDbContext:
//If the override is removed, everything works
public sealed override int SaveChanges()
{
OnBeforeSave();
return base.SaveChanges();
}
//Did not make any difference
//public void TestModelCreation(DbModelBuilder model)
//{
// OnModelCreating(model);
//}
protected void OnBeforeSave()
{
var now = DateTime.Now;
//This line causes the exception
foreach (var changedEntity in ChangeTracker.Entries())
{
var entity = changedEntity.Entity as IEntity;
if (entity != null)
{
switch (changedEntity.State)
{
case EntityState.Added:
entity.Created = now;
entity.Updated = now;
break;
case EntityState.Modified:
Entry(entity).Property(x => x.Created).IsModified = false;
entity.Updated = now;
break;
}
}
}
}
