public void QueryNestedPropertyWithProxy()
{
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
var p1 = new Person { Name = "Hallo" };
p1.Addresses.Add(new Adresse()
{
Name = "Myaddress"
});
ctx.Persons.Add(p1);
ctx.SaveChanges();
}
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
var p = ctx.Persons.FirstOrDefault();
Assert.That(p.Addresses.Count, Is.EqualTo(1));
}
}
public void QueryTwoDifferentTables()
{
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
var p1 = new Person { Name = "Hallo" };
p1.Addresses.Add(new Adresse()
{
Name = "Myaddress"
});
ctx.Persons.Add(p1);
ctx.SaveChanges();
}
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
var p = ctx.Persons.FirstOrDefault();
var adr = ctx.Adresses.FirstOrDefault();
Assert.That(p.Addresses.First() == adr);
}
}
public void FirstOrDefaultNestedProperty()
{
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
ctx.TestData.Add(new TestData()
{
NestedData = new TestData()
{
Number = 42
}
});
ctx.SaveChanges();
}
using (var ctx = new MyTestDbContext())
{
ctx.Configuration.ProxyCreationEnabled = false;
ctx.SetupAsTestDbContext();
var data = ctx.TestData.FirstOrDefault(x => x.NestedData.Number == 42);
Assert.That(data, Is.Not.Null);
}
}
public void SameInstancesInContext()
{
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
var p1 = new Person { Name = "Jürgen" };
ctx.Persons.Add(p1);
ctx.SaveChanges();
}
using (var ctx = new MyTestDbContext())
{
ctx.Configuration.ProxyCreationEnabled = false;
ctx.SetupAsTestDbContext();
var p1 = ctx.Persons.FirstOrDefault();
var p2 = ctx.Persons.FirstOrDefault();
Assert.That(p1 == p2);
}
}
public void AddItemWithRequiredParentAndExpectException()
{
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
ctx.Adresses.Add(new Adresse
{
Name = "test",
Person = null //Das dar nicht sein!
});
Assert.Throws<DbEntityValidationException>(() => ctx.SaveChanges());
}
}
public void DeleteItem()
{
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
var p1 = new Person { Name = "Jürgen" };
ctx.Persons.Add(p1);
ctx.SaveChanges();
var p = ctx.Persons.FirstOrDefault(x => x.Id == 1);
ctx.Persons.Remove(p);
ctx.SaveChanges();
Assert.That(ctx.Persons.Count(), Is.EqualTo(0));
}
}
public void FindMethod()
{
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
var p1 = new Person { Name = "Jürgen" };
ctx.Persons.Add(p1);
ctx.SaveChanges();
var p = ctx.Persons.Find(1);
Assert.That(p.Name, Is.EqualTo(p1.Name));
}
}
public void Performance()
{
for (int i = 0; i < 100; i++)
{
using (var ctx5 = new MyTestDbContext())
{
ctx5.SetupAsTestDbContext();
var p3 = ctx5.Persons.FirstOrDefault(x => x.Id == 1);
}
}
}
public void SetInternalProperty()
{
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
ctx.TestData.Add(new TestData());
ctx.SaveChanges();
}
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
var p = ctx.TestData.FirstOrDefault();
Assert.That(p.Id, Is.EqualTo(1));
}
}
public void GetItemTwice()
{
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
var person = new Person
{
Name = "Eintrag"
};
ctx.Persons.Add(person);
ctx.SaveChanges();
var dbEntry = ctx.Persons.FirstOrDefault(x => x.Id == 1);
Assert.That(person, Is.SameAs(dbEntry));
Assert.That(person.Id, Is.EqualTo(dbEntry.Id));
}
}
public void QueryNestedPropertyWithNoProxyAndIncludeTwoLevel()
{
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
var p1 = new Person
{
Name = "Hallo1",
ChildPerson = new Person
{
Name = "Hallo2",
Addresses = new List<Adresse>()
{
new Adresse()
{
Name = "Adr"
}
},
ChildPerson = new Person
{
Name = "Hallo3"
}
}
};
ctx.Persons.Add(p1);
ctx.SaveChanges();
}
using (var ctx = new MyTestDbContext())
{
ctx.Configuration.ProxyCreationEnabled = false;
ctx.SetupAsTestDbContext();
var p = ctx.Persons.Include(x => x.ChildPerson.Addresses).FirstOrDefault();
Assert.That(p.ChildPerson.Addresses.Count, Is.EqualTo(1));
}
}
public void QueryNestedPropertyWithNoProxyAndIncludeOneLevel()
{
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
var p1 = new Person
{
Name = "Hallo1",
ChildPerson = new Person
{
Name = "Hallo2",
ChildPerson = new Person
{
Name = "Hallo3"
}
}
};
ctx.Persons.Add(p1);
ctx.SaveChanges();
}
using (var ctx = new MyTestDbContext())
{
ctx.Configuration.ProxyCreationEnabled = false;
ctx.SetupAsTestDbContext();
var p = ctx.Persons.Include(x => x.ChildPerson).FirstOrDefault();
Assert.That(p.ChildPerson, Is.Not.Null);
}
}
public void QueryNestedPropertyWithNoProxyAndInclude()
{
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
var p1 = new Person { Name = "Hallo" };
p1.Addresses.Add(new Adresse()
{
Name = "Myaddress"
});
ctx.Persons.Add(p1);
ctx.SaveChanges();
}
using (var ctx = new MyTestDbContext())
{
ctx.Configuration.ProxyCreationEnabled = false;
ctx.SetupAsTestDbContext();
var p = ctx.Persons.Include(x => x.Addresses).FirstOrDefault();
Assert.That(p.Addresses.Count, Is.EqualTo(1));
}
}
public void QueryNoProxyEnsureId()
{
int id = 0;
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
var p1 = new Person { Name = "Hallo" };
p1.Addresses.Add(new Adresse()
{
Name = "Myaddress"
});
ctx.Persons.Add(p1);
ctx.SaveChanges();
id = p1.Addresses.FirstOrDefault().Id;
}
using (var ctx = new MyTestDbContext())
{
ctx.Configuration.ProxyCreationEnabled = false;
ctx.SetupAsTestDbContext();
var p = ctx.Persons.Include(x => x.Addresses).FirstOrDefault();
Assert.That(p.Addresses.FirstOrDefault().Id, Is.EqualTo(id));
}
}
public void ChangePropertyAndSave()
{
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
ctx.Persons.Add(new Person()
{
Name = "Name"
});
ctx.SaveChanges();
}
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
var p = ctx.Persons.FirstOrDefault();
p.Name = p.Name.ToUpper();
ctx.SaveChanges();
}
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
var p = ctx.Persons.FirstOrDefault();
Assert.That(p.Name, Is.EqualTo("NAME"));
}
}
public void TestJoinOperation()
{
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
var person = new Person
{
Name = "Eintrag"
};
foreach (var adr in Enumerable.Range(0, 10).Select(x => new Adresse { Name = x.ToString() }))
person.Addresses.Add(adr);
ctx.Persons.Add(person);
ctx.SaveChanges();
var query = from p in ctx.Persons
from a in ctx.Adresses
where p.Id == a.Id
select a;
Assert.That(ctx.Persons.Count(), Is.EqualTo(1));
Assert.That(ctx.Adresses.Count(), Is.EqualTo(10));
Assert.That(query.Count(), Is.EqualTo(1));
}
}
public void AddTwoUniqueEntries()
{
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
var p1 = new Person { Name = "Hallo" };
ctx.Persons.Add(p1);
ctx.SaveChanges();
var p2 = new Person { Name = "Jürgen" };
ctx.Persons.Add(p2);
ctx.SaveChanges();
Assert.That(p1.Id, Is.EqualTo(1));
Assert.That(p2.Id, Is.EqualTo(2));
}
}
public void UseTwoDifferentContexts()
{
using (var ctx1 = new MyTestDbContext())
{
ctx1.SetupAsTestDbContext();
var p1 = new Person { Name = "Jürgen" };
p1.Addresses.Add(new Adresse { Name = "AlterWert1" });
p1.Addresses.Add(new Adresse { Name = "AlterWert2" });
ctx1.Persons.Add(p1);
ctx1.SaveChanges();
}
using (var ctx2 = new MyTestDbContext())
{
ctx2.SetupAsTestDbContext();
var persons = ctx2.Persons;
Assert.AreEqual(2, persons.First().Addresses.Count());
}
Person p2;
using (var ctx3 = new MyTestDbContext())
{
ctx3.SetupAsTestDbContext();
p2 = ctx3.Persons.FirstOrDefault(x => x.Id == 1);
p2.Name = "ÜberschriebenerWert";
p2.Addresses.First().Name = "Hallo";
}
using (var ctx4 = new MyTestDbContext())
{
ctx4.SetupAsTestDbContext();
ctx4.Entry(p2).State = EntityState.Modified;
ctx4.SaveChanges();
}
using (var ctx5 = new MyTestDbContext())
{
ctx5.SetupAsTestDbContext();
var p3 = ctx5.Persons.FirstOrDefault(x => x.Id == 1);
Assert.That(p2, Is.Not.EqualTo(p3));
Assert.That(p3.Name, Is.EqualTo("ÜberschriebenerWert"));
Assert.That(p3.Addresses.First().Name, Is.EqualTo("AlterWert1"));
}
}
public void AddPersonWithAddressesSelectMany()
{
using (var ctx = new MyTestDbContext())
{
ctx.SetupAsTestDbContext();
var p1 = new Person { Name = "Hallo" };
for (int i = 0; i < 3; i++)
{
p1.Addresses.Add(new Adresse()
{
Name = "Myaddress" + i
});
}
ctx.Persons.Add(p1);
ctx.SaveChanges();
}
using (var ctx = new MyTestDbContext())
{
ctx.Configuration.ProxyCreationEnabled = false;
ctx.SetupAsTestDbContext();
var adr = ctx.Persons
.AsNoTracking()
.Where(x => x.Id > 0)
.Where(x => x.Id < 1000)
.SelectMany(x => x.Addresses)
.FirstOrDefault(x => x.Id == 2);
Assert.That(adr, Is.Not.Null);
}
}