diff options
author | Sérgio Martins <sergio.martins@kdab.com> | 2017-09-24 20:45:09 +0100 |
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committer | Simon Hausmann <simon.hausmann@qt.io> | 2018-07-21 17:47:35 +0000 |
commit | 9229452e574e603aa86fd5adb28da33cf5879db9 (patch) | |
tree | 6cd8f36cb60a438377f07519c3e01cf6aad95ba8 /tests/auto/corelib/tools/qscopeguard | |
parent | 89bca67499c6316ef63c9d788c5508ce6a79b27c (diff) |
Introduce QScopeGuard
A RAII style class which calls a function at end of scope.
Example usage:
auto cleanup = qScopeGuard([] { <my cleanup code> ; });
[ChangeLog][QtCore] Introduced QScopeGuard.
Task-number: QTBUG-62894
Change-Id: Ife67f5c76255a1fafbae03367263da0bac9a0070
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Diffstat (limited to 'tests/auto/corelib/tools/qscopeguard')
-rw-r--r-- | tests/auto/corelib/tools/qscopeguard/qscopeguard.pro | 4 | ||||
-rw-r--r-- | tests/auto/corelib/tools/qscopeguard/tst_qscopeguard.cpp | 85 |
2 files changed, 89 insertions, 0 deletions
diff --git a/tests/auto/corelib/tools/qscopeguard/qscopeguard.pro b/tests/auto/corelib/tools/qscopeguard/qscopeguard.pro new file mode 100644 index 0000000000..070d4b077c --- /dev/null +++ b/tests/auto/corelib/tools/qscopeguard/qscopeguard.pro @@ -0,0 +1,4 @@ +CONFIG += testcase +TARGET = tst_qscopeguard +QT = core testlib +SOURCES = tst_qscopeguard.cpp diff --git a/tests/auto/corelib/tools/qscopeguard/tst_qscopeguard.cpp b/tests/auto/corelib/tools/qscopeguard/tst_qscopeguard.cpp new file mode 100644 index 0000000000..f95d48f042 --- /dev/null +++ b/tests/auto/corelib/tools/qscopeguard/tst_qscopeguard.cpp @@ -0,0 +1,85 @@ +/**************************************************************************** +** +** Copyright (C) 2018 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Sérgio Martins <sergio.martins@kdab.com> +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the test suite of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:GPL-EXCEPT$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 as published by the Free Software +** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtTest/QtTest> +#include <QtCore/QScopeGuard> + +/*! + \class tst_QScopedGuard + \internal + \since 5.11 + \brief Tests class QScopedCleanup and function qScopeGuard + + */ +class tst_QScopedGuard : public QObject +{ + Q_OBJECT + +private Q_SLOTS: + void leavingScope(); + void exceptions(); +}; + +static int s_globalState = 0; + +void tst_QScopedGuard::leavingScope() +{ + auto cleanup = qScopeGuard([] { s_globalState++; QCOMPARE(s_globalState, 3); }); + QCOMPARE(s_globalState, 0); + + { + auto cleanup = qScopeGuard([] { s_globalState++; }); + QCOMPARE(s_globalState, 0); + } + + QCOMPARE(s_globalState, 1); + s_globalState++; +} + +void tst_QScopedGuard::exceptions() +{ + s_globalState = 0; + bool caught = false; + QT_TRY + { + auto cleanup = qScopeGuard([&caught] { s_globalState++; }); + QT_THROW(std::bad_alloc()); //if Qt compiled without exceptions this is noop + s_globalState = 100; + } + QT_CATCH(...) + { + caught = true; + QCOMPARE(s_globalState, 1); + } + + QVERIFY((caught && s_globalState == 1) || (!caught && s_globalState == 101)); + +} + +QTEST_MAIN(tst_QScopedGuard) +#include "tst_qscopeguard.moc" |