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https://github.com/crystalidea/qt6windows7.git
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105 lines
2.7 KiB
C++
105 lines
2.7 KiB
C++
// Copyright (C) 2022 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
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#include <QTest>
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#include <QTestEventLoop>
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#include <QtCore/QTimer>
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// Tests for QTestEventLoop (and some QTRY_* details)
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class tst_EventLoop: public QObject
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{
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Q_OBJECT
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bool m_inTestFunction = false;
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private slots:
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void cleanup();
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void fail();
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void skip();
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void pass();
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};
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class DeferredFlag : public QObject // Can't be const.
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{
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Q_OBJECT
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bool m_flag;
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public:
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// A boolean that either starts out true or decays to true after 50 ms.
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// However, that decay will only happen when the event loop is run.
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explicit DeferredFlag(bool initial = false) : m_flag(initial)
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{
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if (!initial)
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QTimer::singleShot(50, this, &DeferredFlag::onTimeOut);
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}
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explicit operator bool() const { return m_flag; }
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bool operator!() const { return !m_flag; }
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friend bool operator==(const DeferredFlag &a, const DeferredFlag &b)
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{
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return bool(a) == bool(b);
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}
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public slots:
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void onTimeOut() { m_flag = true; }
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};
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char *toString(const DeferredFlag &val)
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{
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return qstrdup(bool(val) ? "DeferredFlag(true)" : "DeferredFlag(false)");
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}
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void tst_EventLoop::cleanup()
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{
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// QTBUG-104441: looping didn't happen in cleanup() if test failed or skipped.
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{
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DeferredFlag flag;
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auto &loop = QTestEventLoop::instance();
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loop.enterLoopMSecs(100);
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QVERIFY2(loop.timeout(), "QTestEventLoop exited prematurely in cleanup()");
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QVERIFY(flag);
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}
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{
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DeferredFlag flag;
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QTRY_VERIFY2(flag, "QTRY_* loop exited prematurely in cleanup()");
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}
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m_inTestFunction = false;
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}
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void tst_EventLoop::fail()
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{
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QVERIFY2(!std::exchange(m_inTestFunction, true), "Earlier test failed to clean up");
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QFAIL("Failing test should still clean up");
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}
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void tst_EventLoop::skip()
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{
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QVERIFY2(!std::exchange(m_inTestFunction, true), "Earlier test failed to clean up");
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QSKIP("Skipping test should still clean up");
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}
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void tst_EventLoop::pass()
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{
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QVERIFY2(!std::exchange(m_inTestFunction, true), "Earlier test failed to clean up");
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{
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DeferredFlag flag;
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auto &loop = QTestEventLoop::instance();
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loop.enterLoopMSecs(100);
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QVERIFY(loop.timeout());
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QVERIFY(flag);
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}
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{
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DeferredFlag flag;
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QTRY_VERIFY(flag);
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}
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DeferredFlag flag;
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QTestEventLoop loop(this);
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QVERIFY(!flag);
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loop.enterLoopMSecs(1);
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QVERIFY(loop.timeout());
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QVERIFY(!flag);
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loop.enterLoopMSecs(100);
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QVERIFY(loop.timeout());
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QVERIFY(flag);
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}
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QTEST_MAIN(tst_EventLoop)
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#include "tst_eventloop.moc"
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