public void Setup()
{
_db = new TestContext();
_randomizer = new BookRandomizer();
Database.SetInitializer(new DatabaseInitialiser());
_db.Database.Initialize(true);
}
[Test] // For proof of concept
public void EntityFrameworkAndSqlBulkToolsTogether_RollsbackGracefully()
{
BulkOperations bulk = new BulkOperations();
_db.Books.RemoveRange(_db.Books.ToList());
_db.SaveChanges();
string testIsbn = "1234567";
try
{
using (TransactionScope tx = new TransactionScope())
{
using (SqlConnection conn = new SqlConnection(ConfigurationManager
.ConnectionStrings["SqlBulkToolsTest"].ConnectionString))
{
// Use the same connection for EntityFramework
using (TestContext testContext = new TestContext(conn, contextOwnsConnection: false))
{
testContext.Books.Add(new Book()
{
BestSeller = true,
Description = "I am a valid insert",
Title = "Hello World",
ISBN = testIsbn,
Price = 23.99M
});
/* This is a valid insert. Nothing wrong with it but if any transaction within TransactionScope fails,
* we want to undo this transaction. */
testContext.SaveChanges();
}
bulk.Setup <Book>()
.ForObject(new Book()
{
BestSeller = true,
Description = "I'm not a valid insert, therefore everything should rollback",
Title = "Hello World",
ISBN = testIsbn,
Price = 23.99M
})
.WithTable("Books")
.AddAllColumns()
.Upsert()
.SetIdentityColumn(x => x.Id, ColumnDirectionType.InputOutput)
//.MatchTargetOn(x => x.Id) This will throw an exception (intentionally). MatchTargetOn can't be null.
.Commit(conn);
}
// We will never reach this statement.
tx.Complete();
}
}
catch (NullReferenceException e)
{
Assert.AreEqual("MatchTargetOn is a mandatory for upsert operation", e.Message);
Assert.IsNull(_db.Books.SingleOrDefault(x => x.ISBN == testIsbn));
}
}
