void tst_QPluginLoader::deleteinstanceOnUnload()
{
for (int pass = 0; pass < 2; ++pass) {
QPluginLoader loader1;
loader1.setFileName( sys_qualifiedLibraryName("theplugin")); //a plugin
if (pass == 0)
loader1.load(); // not recommended, instance() should do the job.
PluginInterface *instance1 = qobject_cast<PluginInterface*>(loader1.instance());
QVERIFY(instance1);
QCOMPARE(instance1->pluginName(), QLatin1String("Plugin ok"));
QPluginLoader loader2;
loader2.setFileName( sys_qualifiedLibraryName("theplugin")); //a plugin
if (pass == 0)
loader2.load(); // not recommended, instance() should do the job.
PluginInterface *instance2 = qobject_cast<PluginInterface*>(loader2.instance());
QCOMPARE(instance2->pluginName(), QLatin1String("Plugin ok"));
QSignalSpy spy1(loader1.instance(), SIGNAL(destroyed()));
QSignalSpy spy2(loader2.instance(), SIGNAL(destroyed()));
if (pass == 0) {
QCOMPARE(loader2.unload(), false); // refcount not reached 0, not really unloaded
QCOMPARE(spy1.count(), 0);
QCOMPARE(spy2.count(), 0);
}
QCOMPARE(instance1->pluginName(), QLatin1String("Plugin ok"));
QCOMPARE(instance2->pluginName(), QLatin1String("Plugin ok"));
QVERIFY(loader1.unload()); // refcount reached 0, did really unload
QCOMPARE(spy1.count(), 1);
QCOMPARE(spy2.count(), 1);
}
}
void tst_QPluginLoader::preloadedPlugin_data()
{
QTest::addColumn<bool>("doLoad");
QTest::addColumn<QString>("libname");
QTest::newRow("create-plugin") << false << sys_qualifiedLibraryName("theplugin");
QTest::newRow("load-plugin") << true << sys_qualifiedLibraryName("theplugin");
QTest::newRow("create-non-plugin") << false << sys_qualifiedLibraryName("tst_qpluginloaderlib");
QTest::newRow("load-non-plugin") << true << sys_qualifiedLibraryName("tst_qpluginloaderlib");
}
void tst_QPluginLoader::loadHints()
{
QPluginLoader loader;
QCOMPARE(loader.loadHints(), (QLibrary::LoadHints)0); //Do not crash
loader.setLoadHints(QLibrary::ResolveAllSymbolsHint);
loader.setFileName( sys_qualifiedLibraryName("theplugin")); //a plugin
QCOMPARE(loader.loadHints(), QLibrary::ResolveAllSymbolsHint);
}
void tst_QLibrary::fileName_data()
{
QTest::addColumn<QString>("libName");
QTest::addColumn<QString>("expectedFilename");
QTest::newRow( "ok02" ) << sys_qualifiedLibraryName(QLatin1String("mylib"))
<< sys_qualifiedLibraryName(QLatin1String("mylib"));
#ifdef Q_OS_WIN
#ifndef Q_OS_WINCE
QTest::newRow( "ok03" ) << "user32"
<< "USER32.dll";
#else
QTest::newRow( "ok03" ) << "coredll"
<< "coredll.dll";
#endif
#endif
}
void tst_QPluginLoader::cleanup()
{
// check if the library/plugin was leaked
// we can't use QPluginLoader::isLoaded here because on some platforms the plugin is always loaded by QPluginLoader.
// Also, if this test fails once, it will keep on failing because we can't force the unload,
// so we report it only once.
static bool failedAlready = false;
if (!failedAlready) {
QLibrary lib(sys_qualifiedLibraryName("theplugin"));
failedAlready = true;
QVERIFY2(!lib.isLoaded(), "Plugin was leaked - will not check again");
failedAlready = false;
}
}
void tst_QPluginLoader::reloadPlugin()
{
QPluginLoader loader;
loader.setFileName( sys_qualifiedLibraryName("theplugin")); //a plugin
loader.load(); // not recommended, instance() should do the job.
PluginInterface *instance = qobject_cast<PluginInterface*>(loader.instance());
QVERIFY(instance);
QCOMPARE(instance->pluginName(), QLatin1String("Plugin ok"));
QSignalSpy spy(loader.instance(), SIGNAL(destroyed()));
QVERIFY(spy.isValid());
QVERIFY(loader.unload()); // refcount reached 0, did really unload
QCOMPARE(spy.count(), 1);
// reload plugin
QVERIFY(loader.load());
QVERIFY(loader.isLoaded());
PluginInterface *instance2 = qobject_cast<PluginInterface*>(loader.instance());
QVERIFY(instance2);
QCOMPARE(instance2->pluginName(), QLatin1String("Plugin ok"));
QVERIFY(loader.unload());
}
void tst_QPluginLoader::errorString()
{
#if defined(Q_OS_WINCE)
// On WinCE we need an QCoreApplication object for current dir
int argc = 0;
QCoreApplication app(argc,0);
#endif
const QString unknown(QLatin1String("Unknown error"));
{
QPluginLoader loader; // default constructed
bool loaded = loader.load();
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QCOMPARE(loaded, false);
QCOMPARE(loader.errorString(), unknown);
QObject *obj = loader.instance();
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QCOMPARE(obj, static_cast<QObject*>(0));
QCOMPARE(loader.errorString(), unknown);
bool unloaded = loader.unload();
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QCOMPARE(unloaded, false);
QCOMPARE(loader.errorString(), unknown);
}
{
QPluginLoader loader( sys_qualifiedLibraryName("tst_qpluginloaderlib")); //not a plugin
bool loaded = loader.load();
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QCOMPARE(loaded, false);
QVERIFY(loader.errorString() != unknown);
QObject *obj = loader.instance();
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QCOMPARE(obj, static_cast<QObject*>(0));
QVERIFY(loader.errorString() != unknown);
bool unloaded = loader.unload();
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QCOMPARE(unloaded, false);
QVERIFY(loader.errorString() != unknown);
}
{
QPluginLoader loader( sys_qualifiedLibraryName("nosuchfile")); //not a file
bool loaded = loader.load();
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QCOMPARE(loaded, false);
QVERIFY(loader.errorString() != unknown);
QObject *obj = loader.instance();
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QCOMPARE(obj, static_cast<QObject*>(0));
QVERIFY(loader.errorString() != unknown);
bool unloaded = loader.unload();
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QCOMPARE(unloaded, false);
QVERIFY(loader.errorString() != unknown);
}
#if !defined Q_OS_WIN && !defined Q_OS_MAC && !defined Q_OS_HPUX && !defined Q_OS_SYMBIAN && !defined Q_OS_QNX
{
QPluginLoader loader( sys_qualifiedLibraryName("almostplugin")); //a plugin with unresolved symbols
loader.setLoadHints(QLibrary::ResolveAllSymbolsHint);
QCOMPARE(loader.load(), false);
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QVERIFY(loader.errorString() != unknown);
QCOMPARE(loader.instance(), static_cast<QObject*>(0));
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QVERIFY(loader.errorString() != unknown);
QCOMPARE(loader.unload(), false);
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QVERIFY(loader.errorString() != unknown);
}
#endif
{
QPluginLoader loader( sys_qualifiedLibraryName("theplugin")); //a plugin
QCOMPARE(loader.load(), true);
QCOMPARE(loader.errorString(), unknown);
QVERIFY(loader.instance() != static_cast<QObject*>(0));
QCOMPARE(loader.errorString(), unknown);
// Make sure that plugin really works
PluginInterface* theplugin = qobject_cast<PluginInterface*>(loader.instance());
QString pluginName = theplugin->pluginName();
QCOMPARE(pluginName, QLatin1String("Plugin ok"));
QCOMPARE(loader.unload(), true);
QCOMPARE(loader.errorString(), unknown);
}
}
