public void ShouldDeleteACategoryWithTimestampData()
{
var category = CreateCategoryInstance("Foo");
_db.Categories.Add(category);
_db.SaveChanges();
var db2 = new SpyStoreContext();
var catToDelete = new Category { Id = category.Id, TimeStamp = category.TimeStamp};
db2.Entry(catToDelete).State = EntityState.Deleted;
var affected = db2.SaveChanges();
Assert.Equal(1,affected);
}
public void ShouldNotDeleteACategoryWithoutTimestampData()
{
var category = CreateCategoryInstance("Foo");
_db.Categories.Add(category);
_db.SaveChanges();
var db2 = new SpyStoreContext();
var catToDelete = new Category { Id = category.Id};
db2.Categories.Remove(catToDelete);
var ex = Assert.Throws<DbUpdateConcurrencyException>(() =>db2.SaveChanges());
Assert.Equal(1,ex.Entries.Count);
Assert.Equal(2,((Category)ex.Entries[0].Entity).Id);
}