IEnumerable<Child> CreateGrandChildren(string childName)
{
var grandChild1Name = childName + "-" + "GrandChild1";
var grandChild1 = new Child(grandChild1Name)
{
Children = new List<Child>
{
new Child(grandChild1Name + "-" + "GrandGrandChild1"),
new Child(grandChild1Name + "-" + "GrandGrandChild2"),
new Child(grandChild1Name + "-" + "GrandGrandChild3")
}
};
var grandChild2Name = childName + "-" + "GrandChild2";
var grandChild2 = new Child(grandChild2Name)
{
Children = new List<Child>
{
new Child(grandChild2Name + "-" + "GrandGrandChild1"),
new Child(grandChild2Name + "-" + "GrandGrandChild2"),
new Child(grandChild2Name + "-" + "GrandGrandChild3")
}
};
var grandChild3Name = childName + "-" + "GrandChild3";
var grandChild3 = new Child(grandChild3Name)
{
Children = new List<Child>
{
new Child(grandChild3Name + "-" + "GrandGrandChild1"),
new Child(grandChild3Name + "-" + "GrandGrandChild2"),
new Child(grandChild3Name + "-" + "GrandGrandChild3")
}
};
var result = new List<Child> {grandChild1, grandChild2, grandChild3};
return result;
}
public MockFamily()
{
var child1 = new Child("Child1") { Children = new List<Child>(CreateGrandChildren("Child1")) };
var child2 = new Child("Child2") { Children = new List<Child>(CreateGrandChildren("Child2")) };
var child3 = new Child("Child3") { Children = new List<Child>(CreateGrandChildren("Child3")) };
Parent = new Parent("Parent")
{
Children = new List<Child> { child1, child2, child3 }
};
}
public void Apply_Changes_Should_Mark_Parent_With_Added_Modified_Deleted_Children()
{
// Arrange
var context = TestsHelper.CreateFamilyDbContext(CreateFamilyDbOptions);
var child1 = new Child("Child1");
var child2 = new Child("Child2");
var child3 = new Child("Child3");
var parent = new Parent("Parent")
{
Children = new List<Child> { child1, child2, child3 }
};
child1.TrackingState = TrackingState.Added;
child2.TrackingState = TrackingState.Modified;
child3.TrackingState = TrackingState.Deleted;
// Act
context.ApplyChanges(parent);
// Assert
Assert.AreEqual(EntityState.Unchanged, context.Entry(parent).State);
Assert.AreEqual(EntityState.Added, context.Entry(child1).State);
Assert.AreEqual(EntityState.Modified, context.Entry(child2).State);
Assert.AreEqual(EntityState.Deleted, context.Entry(child3).State);
}
