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-rw-r--r--tests/webkitwidgets/util.h79
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diff --git a/tests/webkitwidgets/util.h b/tests/webkitwidgets/util.h
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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>
+
+#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;
+ }
+};