public void TestLinqLongCount()
{
var connectionString = GetConnectionString("TestLinqLongCount");
var context = new MyEntityContext(connectionString);
for (var i = 0; i < 100; i++)
{
var entity = context.TestEntities.Create();
entity.SomeString = "Entity " + i;
}
context.SaveChanges();
var count = context.TestEntities.LongCount();
Assert.IsNotNull(count);
Assert.AreEqual(100, count);
}