private void Principal_nav_set_bidirectional_impl(EntityState entityState, bool?graph)
{
using (var context = new FixupContext())
{
var principal = new Parent {
Id = 77
};
if (graph == null)
{
context.Entry(principal).State = entityState;
}
var dependent = new Child {
Name = "1"
};
principal.Child1 = dependent;
if (graph == null)
{
context.ChangeTracker.DetectChanges();
}
else if (graph == true)
{
context.ChangeTracker.TrackGraph(principal, e => e.Entry.State = entityState);
}
else
{
switch (entityState)
{
case EntityState.Added:
context.Add(principal);
break;
case EntityState.Unchanged:
context.Attach(principal);
break;
case EntityState.Modified:
context.Update(principal);
break;
}
}
Assert.Equal(2, context.ChangeTracker.Entries().Count());
AssertFixup(
context,
() =>
{
Assert.Equal(principal.Id, context.Entry(dependent).Property("ParentId").CurrentValue);
Assert.Same(dependent, principal.Child1);
Assert.Same(principal, dependent.Parent);
Assert.Equal(entityState, context.Entry(principal).State);
Assert.Equal(graph == null ? EntityState.Added : entityState, context.Entry(dependent).State);
});
}
}
private void Principal_nav_set_unidirectional_impl(EntityState entityState, bool?graph)
{
using (var context = new FixupContext())
{
var principal = new ParentPN {
Id = 77
};
if (graph == null)
{
context.Entry(principal).State = entityState;
}
var dependent = new ChildPN {
Name = "1"
};
principal.Child1 = dependent;
var subDependent = new SubChildPN {
Name = "1S"
};
dependent.SubChild = subDependent;
if (graph == null)
{
context.ChangeTracker.DetectChanges();
}
else if (graph == true)
{
context.ChangeTracker.TrackGraph(principal, e => e.Entry.State = entityState);
}
else
{
switch (entityState)
{
case EntityState.Added:
context.Add(principal);
break;
case EntityState.Unchanged:
context.Attach(principal);
break;
case EntityState.Modified:
context.Update(principal);
break;
}
}
Assert.Equal(3, context.ChangeTracker.Entries().Count());
AssertFixup(
context,
() =>
{
Assert.Equal(entityState, context.Entry(principal).State);
Assert.Same(dependent, principal.Child1);
Assert.Null(principal.Child2);
var dependentEntry = context.Entry(dependent);
Assert.Equal(principal.Id, dependentEntry.Property("ParentId").CurrentValue);
Assert.Equal(graph == null ? EntityState.Added : entityState, dependentEntry.State);
Assert.Equal(nameof(ParentPN.Child1), dependentEntry.Metadata.DefiningNavigationName);
Assert.Same(subDependent, dependent.SubChild);
var subDependentEntry = context.Entry(subDependent);
Assert.Equal(principal.Id, subDependentEntry.Property("ChildId").CurrentValue);
Assert.Equal(graph == null ? EntityState.Added : entityState, subDependentEntry.State);
Assert.Equal(nameof(ChildPN.SubChild), subDependentEntry.Metadata.DefiningNavigationName);
});
}
}
