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/*
Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
// Functions and macros that really need to be in QTestLib
#if 0
#pragma qt_no_master_include
#endif
#include <QEventLoop>
#include <QSignalSpy>
#include <QTimer>
#include <qwebenginepage.h>
#if __cplusplus >= 201103L
#include <functional>
using std::ref;
#else
#include <tr1/functional>
using std::tr1::ref;
#endif
#if !defined(TESTS_SOURCE_DIR)
#define TESTS_SOURCE_DIR ""
#endif
/**
* Starts an event loop that runs until the given signal is received.
* Optionally the event loop
* can return earlier on a timeout.
*
* \return \p true if the requested signal was received
* \p false on timeout
*/
static inline bool waitForSignal(QObject* obj, const char* signal, int timeout = 10000)
{
QEventLoop loop;
QObject::connect(obj, signal, &loop, SLOT(quit()));
QTimer timer;
QSignalSpy timeoutSpy(&timer, SIGNAL(timeout()));
if (timeout > 0) {
QObject::connect(&timer, SIGNAL(timeout()), &loop, SLOT(quit()));
timer.setSingleShot(true);
timer.start(timeout);
}
loop.exec();
return timeoutSpy.isEmpty();
}
/**
* Just like QSignalSpy but facilitates sync and async
* signal emission. For example if you want to verify that
* page->foo() emitted a signal, it could be that the
* implementation decides to emit the signal asynchronously
* - in which case we want to spin a local event loop until
* emission - or that the call to foo() emits it right away.
*/
class SignalBarrier : private QSignalSpy
{
public:
SignalBarrier(const QObject* obj, const char* aSignal)
: QSignalSpy(obj, aSignal)
{ }
bool ensureSignalEmitted()
{
bool result = count() > 0;
if (!result)
result = wait();
clear();
return result;
}
};
template<typename T>
class CallbackSpy {
public:
// Tells tr1::ref the result of void operator()(const T &result) when decltype isn't available.
typedef void result_type;
CallbackSpy() {
timeoutTimer.setSingleShot(true);
QObject::connect(&timeoutTimer, SIGNAL(timeout()), &eventLoop, SLOT(quit()));
}
T waitForResult() {
timeoutTimer.start(10000);
eventLoop.exec();
return result;
}
void operator()(const T &result) {
this->result = result;
eventLoop.quit();
}
private:
Q_DISABLE_COPY(CallbackSpy)
QTimer timeoutTimer;
QEventLoop eventLoop;
T result;
};
static inline QString toPlainText(QWebEnginePage *page)
{
CallbackSpy<QString> spy;
page->toPlainText(ref(spy));
return spy.waitForResult();
}
static inline QString toHtml(QWebEnginePage *page)
{
CallbackSpy<QString> spy;
page->toHtml(ref(spy));
return spy.waitForResult();
}
#define W_QSKIP(a, b) QSKIP(a)
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