public void TestCommandTimeout()
{
Random rnd = RandomInstance;
DataStressConnection conn = null;
try
{
// Use a transaction 50% of the time
if (rnd.NextBool())
{
}
// Create a select command
conn = Factory.CreateConnection(rnd);
if (!OpenConnection(conn))
{
return;
}
DataStressFactory.TableMetadata table = Factory.GetRandomTable(rnd);
DbCommand com = Factory.GetSelectCommand(rnd, table, conn);
// Setup timeout. We want to see various possibilities of timeout happening before, after, or at the same time as when the result comes in.
int delay = rnd.Next(0, 10); // delay is from 0 to 9 seconds inclusive
int timeout = rnd.Next(1, 10); // timeout is from 1 to 9 seconds inclusive
com.CommandText += string.Format("; WAITFOR DELAY '00:00:0{0}'", delay);
com.CommandTimeout = timeout;
// Execute command and catch timeout exception
try
{
CommandExecute(rnd, com, true);
}
catch (DbException e)
{
if (e is SqlException && ((SqlException)e).Number == 3989)
{
throw DataStressErrors.ProductError("Timing issue between OnTimeout and ReadAsyncCallback results in SqlClient's packet parsing going out of sync", e);
}
else if (!e.Message.ToLower().Contains("timeout"))
{
throw;
}
}
}
finally
{
if (conn != null)
{
conn.Dispose();
}
}
}
