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// file : qt/common/smart-ptr/driver.cxx
// copyright : Copyright (c) 2009-2015 Code Synthesis Tools CC
// license : GNU GPL v2; see accompanying LICENSE file
// Test Qt smart pointers.
//
#include <memory> // std::auto_ptr
#include <cassert>
#include <iostream>
#include <QtCore/QSharedPointer>
#include <QtCore/QCoreApplication>
#include <odb/database.hxx>
#include <odb/session.hxx>
#include <odb/transaction.hxx>
#include <common/common.hxx>
#include "test.hxx"
#include "test-odb.hxx"
using namespace std;
using namespace odb::core;
// Force instantiation of all QLazySharedPointer and QLazyWeakPointer
// class template members.
//
template class QLazySharedPointer<cont>;
template class QLazyWeakPointer<cont>;
int
main (int argc, char* argv[])
{
QCoreApplication app (argc, argv);
try
{
auto_ptr<database> db (create_database (argc, argv));
QSharedPointer<cont> c1 (new cont (1));
QSharedPointer<cont> c2 (new cont (2));
// Test boolean conversion operator.
//
{
assert (!QLazySharedPointer<cont> ());
assert (!QLazyWeakPointer<cont> ());
assert (QLazySharedPointer<cont> (c1));
assert (QLazySharedPointer<cont> (*db, 1));
assert (QLazyWeakPointer<cont> (c1));
assert (QLazyWeakPointer<cont> (*db, 1));
}
// Test loaded () implementation.
//
{
assert (QLazySharedPointer<cont> ().loaded ());
assert (!QLazySharedPointer<cont> (c1).loaded ());
assert (!QLazySharedPointer<cont> (*db, 1).loaded ());
assert (QLazySharedPointer<cont> (*db, c1).loaded ());
assert (QLazyWeakPointer<cont> ().loaded ());
assert (!QLazyWeakPointer<cont> (c1).loaded ());
assert (!QLazyWeakPointer<cont> (*db, 1).loaded ());
assert (QLazyWeakPointer<cont> (*db, c1).loaded ());
}
// Test comparison operators.
//
{
// Transient QLazySharedPointer.
//
assert (QLazySharedPointer<cont> () == QLazySharedPointer<cont> ());
assert (QLazySharedPointer<cont> () != QLazySharedPointer<cont> (c1));
assert (QLazySharedPointer<cont> (c1) != QLazySharedPointer<cont> (c2));
assert (QLazySharedPointer<cont> (c2) == QLazySharedPointer<cont> (c2));
// Persistent QLazySharedPointer.
//
QLazySharedPointer<cont> ls1 (*db, 1), ls2 (*db, c2);
assert (ls1 != QLazySharedPointer<cont> ());
assert (ls1 != QLazySharedPointer<cont> (c1));
assert (ls1 == QLazySharedPointer<cont> (*db, c1));
assert (ls1 != ls2);
assert (ls2 == QLazySharedPointer<cont> (c2));
// Transient QLazyWeakPointer.
//
assert (QLazyWeakPointer<cont> () == QLazyWeakPointer<cont> ());
assert (QLazyWeakPointer<cont> () != QLazyWeakPointer<cont> (c1));
assert (QLazyWeakPointer<cont> (c1) != QLazyWeakPointer<cont> (c2));
assert (QLazyWeakPointer<cont> (c2) == QLazyWeakPointer<cont> (c2));
assert (QLazyWeakPointer<cont> () == QLazySharedPointer<cont> ());
assert (QLazyWeakPointer<cont> () != QLazySharedPointer<cont> (c1));
assert (QLazyWeakPointer<cont> (c1) != QLazySharedPointer<cont> (c2));
assert (QLazyWeakPointer<cont> (c2) == QLazySharedPointer<cont> (c2));
// Persistent QLazyWeakPointer.
//
QLazyWeakPointer<cont> lw1 (*db, 1), lw2 (*db, c2);
assert (lw1 != QLazyWeakPointer<cont> ());
assert (lw1 != QLazyWeakPointer<cont> (c1));
assert (lw1 == QLazyWeakPointer<cont> (*db, c1));
assert (lw1 != lw2);
assert (lw2 == QLazyWeakPointer<cont> (c2));
assert (ls1 == lw1);
assert (ls1 != QLazyWeakPointer<cont> (c1));
assert (ls1 == QLazyWeakPointer<cont> (*db, c1));
assert (ls1 != lw2);
assert (ls2 == QLazyWeakPointer<cont> (c2));
}
// Test swap.
//
{
QLazySharedPointer<cont> lx (*db, 1), ly;
swap (lx, ly);
assert (lx.isNull ());
assert (ly == QLazySharedPointer<cont> (*db, c1));
}
// Persist.
//
QSharedPointer<obj> o1 (new obj (1));
QSharedPointer<obj> o2 (new obj (2));
QSharedPointer<obj> o3 (new obj (3));
QSharedPointer<obj> o4 (new obj (4));
o1->c = c1;
o2->c = c1;
o3->c = c2;
o4->c = c2;
{
transaction t (db->begin ());
db->persist (c1);
db->persist (o1);
db->persist (o2);
db->persist (o3);
db->persist (o4);
db->persist (c2);
t.commit ();
}
// Load.
//
{
session s;
transaction t (db->begin ());
QSharedPointer<cont> c (db->load<cont> (1));
QSharedPointer<obj> o (db->load<obj> (1));
// Ensure that lazy pointers are present but not loaded.
//
assert (c->o.size () == 2);
assert (!c->o[0].loaded ());
assert (!c->o[1].loaded ());
assert (!o->c.loaded ());
// Ensure that the correct object IDs were loaded.
//
assert (c->o[0].objectId<obj> () == 1);
assert (c->o[1].objectId<obj> () == 2);
assert (o->c.objectId<obj> () == 1);
// Load the lazy pointer targets ensuring that the loaded
// targets correspond to the cached session objects.
//
QSharedPointer<cont> cl (o->c.load ());
QSharedPointer<obj> ol (c->o[0].load ());
assert (c->o[0].loaded ());
assert (o->c.loaded ());
assert (cl == c);
assert (ol == o);
t.commit ();
}
// Test lazy weak locking and reloading.
//
{
// No session.
//
transaction t (db->begin ());
QSharedPointer<cont> c (db->load<cont> (1));
// Lock.
//
assert (!c->o[1].loaded ());
QLazySharedPointer<obj> l (c->o[1].toStrongRef ());
assert (!l.loaded ());
assert (l.objectId<obj> () == c->o[1].objectId<obj> ());
// Reload.
//
assert (!c->o[1].loaded ());
QSharedPointer<obj> ol (c->o[1].load ());
assert (c->o[1].loaded ());
ol.clear ();
assert (!c->o[1].loaded ());
ol = c->o[1].load ();
assert (c->o[1].loaded ());
t.commit ();
}
//
// Test QSharedPointer as a value wrapper.
//
{
obj2 o1 (1);
obj2 o2 (2);
o2.num = QSharedPointer<unsigned long> (new unsigned long (123));
transaction t (db->begin ());
db->persist (o1);
db->persist (o2);
t.commit ();
}
{
transaction t (db->begin ());
QSharedPointer<obj2> o1 (db->load<obj2> (1));
QSharedPointer<obj2> o2 (db->load<obj2> (2));
t.commit ();
assert (!o1->num);
assert (o2->num && *o2->num == 123);
}
}
catch (const odb::exception& e)
{
cerr << e.what () << endl;
return 1;
}
}
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