Add unit test for KModelIndexProxyMapper.

autotests/CMakeLists.txt

@@ -21,6 +21,7 @@ ecm_add_tests(
   klinkitemselectionmodeltest.cpp
   testmodelqueuedconnections.cpp
   kselectionproxymodeltest.cpp
+  kmodelindexproxymappertest.cpp
   krecursivefilterproxymodeltest.cpp
   krearrangecolumnsproxymodeltest.cpp
   LINK_LIBRARIES KF5::ItemModels Qt5::Test Qt5::Widgets proxymodeltestsuite

autotests/kmodelindexproxymappertest.cpp

@@ -0,0 +1,105 @@
+/*
+    Copyright (c) 2016 Ableton AG <info@ableton.com>
+        Author Stephen Kelly <stephen.kelly@ableton.com>
+
+    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.
+*/
+
+#include <QSignalSpy>
+#include <QTest>
+#include <QStringListModel>
+#include <QIdentityProxyModel>
+#include <QItemSelection>
+
+#include "kmodelindexproxymapper.h"
+
+class ModelIndexProxyMapperTest : public QObject
+{
+    Q_OBJECT
+private Q_SLOTS:
+
+    void init();
+
+    void testIndexMapping();
+    void testSelectionMapping();
+
+private:
+    QStringListModel baseModel;
+
+    QIdentityProxyModel proxy_common1;
+
+    QIdentityProxyModel proxy_left1;
+    QIdentityProxyModel proxy_left2;
+    QIdentityProxyModel proxy_left3;
+
+    QIdentityProxyModel proxy_right1;
+    QIdentityProxyModel proxy_right2;
+    QIdentityProxyModel proxy_right3;
+    QIdentityProxyModel proxy_right4;
+};
+
+void ModelIndexProxyMapperTest::init()
+{
+    baseModel.setStringList({"Monday", "Tuesday", "Wednesday"});
+
+    proxy_common1.setSourceModel(&baseModel);
+
+    proxy_left1.setSourceModel(&proxy_common1);
+    proxy_left2.setSourceModel(&proxy_left1);
+    proxy_left3.setSourceModel(&proxy_left2);
+
+    proxy_right1.setSourceModel(&proxy_common1);
+    proxy_right2.setSourceModel(&proxy_right1);
+    proxy_right3.setSourceModel(&proxy_right2);
+    proxy_right4.setSourceModel(&proxy_right3);
+}
+
+void ModelIndexProxyMapperTest::testIndexMapping()
+{
+    KModelIndexProxyMapper mapper(&proxy_left3, &proxy_right4);
+
+    auto leftIdx = proxy_left3.index(0, 0);
+    auto rightIdx = proxy_right4.index(0, 0);
+
+    QVERIFY(leftIdx.isValid());
+    QVERIFY(rightIdx.isValid());
+
+    QCOMPARE(mapper.mapLeftToRight(leftIdx), rightIdx);
+    QCOMPARE(mapper.mapRightToLeft(rightIdx), leftIdx);
+}
+
+void ModelIndexProxyMapperTest::testSelectionMapping()
+{
+    KModelIndexProxyMapper mapper(&proxy_left3, &proxy_right4);
+
+    auto leftIdx = proxy_left3.index(0, 0);
+    auto rightIdx = proxy_right4.index(0, 0);
+
+    auto leftSel = QItemSelection(leftIdx, leftIdx);
+    auto rightSel = QItemSelection(rightIdx, rightIdx);
+
+    QCOMPARE(leftSel.indexes().size(), 1);
+    QCOMPARE(rightSel.indexes().size(), 1);
+
+    QVERIFY(leftSel.indexes().first().isValid());
+    QVERIFY(rightSel.indexes().first().isValid());
+
+    QCOMPARE(mapper.mapSelectionLeftToRight(leftSel), rightSel);
+    QCOMPARE(mapper.mapSelectionRightToLeft(rightSel), leftSel);
+}
+
+QTEST_MAIN(ModelIndexProxyMapperTest)
+#include "kmodelindexproxymappertest.moc"