public void CanChangeOwnedPropety()
{
var delivery1 = new Delivery();
var a1 = new Address {
Street = "Street 1"
};
var a2 = new Address {
Street = "Street 2"
};
int a1Id = 0;
int a2Id = 0;
var addresses = new List <Address> {
a1, a2
};
delivery1.Addresses = addresses;
using (var ctx = new AppContextTest(true))
{
ctx.Deliveries.Add(delivery1);
ctx.SaveChanges();
a1Id = (int)ctx.Entry(delivery1.Addresses[0]).Property("Id").CurrentValue;
a2Id = (int)ctx.Entry(delivery1.Addresses[1]).Property("Id").CurrentValue;
}
Assert.NotEqual(default, delivery1.DeliveryId);
public void CanOperationWithoutLoad()
{
var student1 = new Student {
Name = "Student 1"
};
var student2 = new Student {
Name = "Student 2"
};
var student31 = new Student {
Name = "Student 31"
};
var school = new School {
Name = "School 1", Students = new List <Student> {
student1, student2, student31
}
};
var person = new Person {
Name = "Person 1"
};
using (var ctx = new AppContextTest(true))
{
ctx.Schools.Add(school);
ctx.People.Add(person);
ctx.SaveChanges();
}
School savedSchool = null;
using (var ctx = new AppContextTest())
{
savedSchool = ctx.Schools.Where(s => s.Id == school.Id).Single();
savedSchool.Students = null;
var countStudents = ctx.Entry(savedSchool).Collection(s => s.Students).Query().Where(s => s.Name.Contains("1")).Count();
Assert.Equal(2, countStudents);
Assert.Empty(savedSchool.Students);//При операциях явной загрузки без загрузки данных(например Count), коллекция будет создана без элемнтов
}
using (var ctx = new AppContextTest())
{
savedSchool = ctx.Schools.Where(s => s.Id == school.Id).Single();
savedSchool.Students = null;
var countStudents = ctx.People.Count();
Assert.NotEqual(default, countStudents);