diff options
Diffstat (limited to 'tests/auto/quick/qquickcanvasitem/data/tst_invalidContext.qml')
-rw-r--r-- | tests/auto/quick/qquickcanvasitem/data/tst_invalidContext.qml | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/tests/auto/quick/qquickcanvasitem/data/tst_invalidContext.qml b/tests/auto/quick/qquickcanvasitem/data/tst_invalidContext.qml new file mode 100644 index 0000000000..dd14aef433 --- /dev/null +++ b/tests/auto/quick/qquickcanvasitem/data/tst_invalidContext.qml @@ -0,0 +1,86 @@ +/**************************************************************************** +** +** Copyright (C) 2019 The Qt Company Ltd. +** 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +import QtQuick 2.4 +import QtTest 1.1 + +Item { + id: root + width: 500 + height: 500 + + Timer { + id: timer + interval: 1 + running: true + repeat: true + onTriggered: { + if (myCanvas.parent == root) { + myCanvas.parent = null + } else { + myCanvas.parent = root + } + } + } + + Canvas { + id: myCanvas + anchors.fill: parent + property var paintContext: null + + function paint() { + paintContext.fillStyle = Qt.rgba(1, 0, 0, 1); + paintContext.fillRect(0, 0, width, height); + requestAnimationFrame(paint); + } + + onAvailableChanged: { + if (available) { + paintContext = getContext("2d") + requestAnimationFrame(paint); + } + } + } + + TestCase { + name: "invalidContext" + when: myCanvas.parent === null && myCanvas.paintContext !== null + + function test_paintContextInvalid() { + verify(myCanvas.paintContext); + var caught = false; + try { + console.log(myCanvas.paintContext.fillStyle); + } catch(e) { + caught = true; + } + verify(caught); + timer.running = false + } + } +} |