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/* GCompris - GImageGrabberTest.cpp
*
* SPDX-FileCopyrightText: 2025 Timothée Giet <animtim@gmail.com>
*
* Authors:
* Timothée Giet <animtim@gmail.com>
*
* SPDX-License-Identifier: GPL-3.0-or-later
*/
#include <QTest>
#include <QObject>
#include "src/core/GImageGrabber.h"
class GImageGrabberTest : public QObject
{
public:
Q_OBJECT
private Q_SLOTS:
void SetMaxUndoTest();
void DoUndoTest();
void DoRedoTest();
};
void GImageGrabberTest::SetMaxUndoTest()
{
GImageGrabber grabber;
grabber.setMaxUndo(-1);
QCOMPARE(grabber.maxUndo(), 1);
// set maxUndo to 20
grabber.setMaxUndo(20);
QCOMPARE(grabber.maxUndo(), 20);
// get 21 undo steps
for(int i = 0; i < 21; i++ ) {
grabber.safeGrab(QSize(1, 1));
}
// move 5 undo to redoList
for(int j = 0; j < 5; j++) {
grabber.doUndo();
}
QCOMPARE(grabber.undoSize(), 16);
QCOMPARE(grabber.redoSize(), 5);
grabber.setMaxUndo(12);
QCOMPARE(grabber.undoSize(), 13);
QCOMPARE(grabber.redoSize(), 0);
// move again 5 undo to redoList
for(int j = 0; j < 5; j++) {
grabber.doUndo();
}
QCOMPARE(grabber.undoSize(), 8);
QCOMPARE(grabber.redoSize(), 5);
grabber.setMaxUndo(10);
QCOMPARE(grabber.undoSize(), 8);
QCOMPARE(grabber.redoSize(), 3);
}
void GImageGrabberTest::DoUndoTest()
{
GImageGrabber grabber;
// test with nothing to undo (only 1 safeGrab)
grabber.safeGrab(QSize(1, 1));
QCOMPARE(grabber.undoSize(), 1);
QCOMPARE(grabber.redoSize(), 0);
grabber.doUndo();
QCOMPARE(grabber.undoSize(), 1);
QCOMPARE(grabber.redoSize(), 0);
// test with something to undo (after 2nd safeGrab)
grabber.safeGrab(QSize(1, 1));
QCOMPARE(grabber.undoSize(), 2);
QCOMPARE(grabber.redoSize(), 0);
grabber.doUndo();
QCOMPARE(grabber.undoSize(), 1);
QCOMPARE(grabber.redoSize(), 1);
}
void GImageGrabberTest::DoRedoTest()
{
GImageGrabber grabber;
// make 2 safeGrab to have something to undo
grabber.safeGrab(QSize(1, 1));
grabber.safeGrab(QSize(1, 1));
QCOMPARE(grabber.undoSize(), 2);
QCOMPARE(grabber.redoSize(), 0);
// test with nothing to redo
grabber.doRedo();
QCOMPARE(grabber.undoSize(), 2);
QCOMPARE(grabber.redoSize(), 0);
// test with something to redo
grabber.doUndo();
QCOMPARE(grabber.undoSize(), 1);
QCOMPARE(grabber.redoSize(), 1);
grabber.doRedo();
QCOMPARE(grabber.undoSize(), 2);
QCOMPARE(grabber.redoSize(), 0);
}
QTEST_MAIN(GImageGrabberTest)
#include "GImageGrabberTest.moc"
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