public void Can_EfCore_Initialize_The_Strings_IEnumerable_Properly()
{
var provider = new InMemorySqliteProvider();
var strings = new Strings(1);
strings.AddString("1");
strings.AddString("2");
strings.AddString("1");
strings.AddString("2");
Assert.Equal(2, strings.Stringies.Count());
try
{
using (var ctx = new HashsetContext(provider.DbOptions))
{
ctx.Add(strings);
ctx.SaveChanges();
}
using (var ctx = new HashsetContext(provider.DbOptions))
{
//throws: System.InvalidCastException :
//Unable to cast object of type 'System.Collections.Generic.List`1[System.String]' to type 'System.Collections.Generic.HashSet`1[System.String]'.
var efStrings = ctx.Strings.First();
}
}
finally
{
provider.DestroyDb();
}
}
public void Ensure_Duplicate_Free_Features_After_Manual_HashSet_Instantiation()
{
var provider = new InMemorySqliteProvider();
var vehicleInitialized = new VehicleInitialized("vehicle1");
vehicleInitialized.AddFeature(new Feature(1));
vehicleInitialized.AddFeature(new Feature(2));
vehicleInitialized.AddFeature(new Feature(1));
vehicleInitialized.AddFeature(new Feature(2));
Assert.Equal(2, vehicleInitialized.Features.Count());
try
{
using (var ctx = new HashsetContext(provider.DbOptions))
{
ctx.Add(vehicleInitialized);
ctx.SaveChanges();
}
using (var ctx = new HashsetContext(provider.DbOptions))
{
var efVehicle = ctx.VehiclesWithHashSetInitialized.Include(e => e.Features).First();
Assert.True(efVehicle.Features.Count() == 2);
efVehicle.AddFeature(new Feature(1));
efVehicle.AddFeature(new Feature(2));
//succeeds:
Assert.Equal(2, efVehicle.Features.Count());
}
}
finally
{
provider.DestroyDb();
}
}
public void Ensure_Duplicate_Free_Features_When_Features_Collection_Instantiation_leftTo_EfCore()
{
var provider = new InMemorySqliteProvider();
var vehicle = new Vehicle("vehicle1");
vehicle.AddFeature(new Feature(1));
vehicle.AddFeature(new Feature(2));
vehicle.AddFeature(new Feature(1));
vehicle.AddFeature(new Feature(2));
Assert.Equal(2, vehicle.Features.Count());
try
{
using (var ctx = new HashsetContext(provider.DbOptions))
{
ctx.Add(vehicle);
ctx.SaveChanges();
}
using (var ctx = new HashsetContext(provider.DbOptions))
{
var efVehicle = ctx.Vehicles.Include(e => e.Features).First();
Assert.True(efVehicle.Features.Count() == 2);
efVehicle.AddFeature(new Feature(1));
efVehicle.AddFeature(new Feature(2));
//fails:
Assert.Equal(2, efVehicle.Features.Count());
}
}
finally
{
provider.DestroyDb();
}
}
