src/tests/kitemlistselectionmanagertest.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2011 by Peter Penz <peter.penz19@gmail.com>             *
   3  *   Copyright (C) 2011 by Frank Reininghaus <frank78ac@googlemail.com>    *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include <qtest_kde.h>
  22
  23 #include "kitemviews/kitemmodelbase.h"
  24 #include "kitemviews/kitemlistselectionmanager.h"
  25
  26 class DummyModel : public KItemModelBase
  27 {
  28 public:
  29     DummyModel();
  30     virtual int count() const;
  31     virtual QHash<QByteArray, QVariant> data(int index) const;
  32 };
  33
  34 DummyModel::DummyModel() :
  35     KItemModelBase()
  36 {
  37 }
  38
  39 int DummyModel::count() const
  40 {
  41     return 100;
  42 }
  43
  44 QHash<QByteArray, QVariant> DummyModel::data(int index) const
  45 {
  46     Q_UNUSED(index);
  47     return QHash<QByteArray, QVariant>();
  48 }
  49
  50
  51
  52 class KItemListSelectionManagerTest : public QObject
  53 {
  54     Q_OBJECT
  55
  56 private slots:
  57     void init();
  58     void cleanup();
  59
  60     void testConstructor();
  61
  62     void testCurrentItemAnchorItem();
  63     void testSetSelected_data();
  64     void testSetSelected();
  65     void testItemsInserted();
  66     void testItemsRemoved();
  67     void testAnchoredSelection();
  68     void testChangeSelection_data();
  69     void testChangeSelection();
  70
  71 private:
  72     KItemListSelectionManager* m_selectionManager;
  73 };
  74
  75 void KItemListSelectionManagerTest::init()
  76 {
  77     m_selectionManager = new KItemListSelectionManager();
  78     m_selectionManager->setModel(new DummyModel());
  79 }
  80
  81 void KItemListSelectionManagerTest::cleanup()
  82 {
  83     delete m_selectionManager->model();
  84     delete m_selectionManager;
  85     m_selectionManager = 0;
  86 }
  87
  88 void KItemListSelectionManagerTest::testConstructor()
  89 {
  90     QVERIFY(!m_selectionManager->hasSelection());
  91     QCOMPARE(m_selectionManager->selectedItems().count(), 0);
  92     QCOMPARE(m_selectionManager->currentItem(), 0);
  93     QCOMPARE(m_selectionManager->anchorItem(), -1);
  94 }
  95
  96 void KItemListSelectionManagerTest::testCurrentItemAnchorItem()
  97 {
  98     QSignalSpy spyCurrent(m_selectionManager, SIGNAL(currentChanged(int,int)));
  99     QSignalSpy spyAnchor(m_selectionManager, SIGNAL(anchorChanged(int,int)));
 100
 101     m_selectionManager->setAnchoredSelectionActive(true);
 102     QVERIFY(m_selectionManager->isAnchoredSelectionActive());
 103
 104     // Set current item and check that the selection manager emits the currentChanged(int,int) signal correctly.
 105     m_selectionManager->setCurrentItem(4);
 106     QCOMPARE(m_selectionManager->currentItem(), 4);
 107     QCOMPARE(spyCurrent.count(), 1);
 108     QCOMPARE(qvariant_cast<int>(spyCurrent.at(0).at(0)), 4);
 109     spyCurrent.takeFirst();
 110
 111     // Set anchor item and check that the selection manager emits the anchorChanged(int,int) signal correctly.
 112     m_selectionManager->setAnchorItem(3);
 113     QCOMPARE(m_selectionManager->anchorItem(), 3);
 114     QCOMPARE(spyAnchor.count(), 1);
 115     QCOMPARE(qvariant_cast<int>(spyAnchor.at(0).at(0)), 3);
 116     spyAnchor.takeFirst();
 117
 118     m_selectionManager->setAnchorItem(5);
 119     QCOMPARE(m_selectionManager->anchorItem(), 5);
 120     QCOMPARE(spyAnchor.count(), 1);
 121     QCOMPARE(qvariant_cast<int>(spyAnchor.at(0).at(0)), 5);
 122     QCOMPARE(qvariant_cast<int>(spyAnchor.at(0).at(1)), 3);
 123     spyAnchor.takeFirst();
 124
 125     // Items between current and anchor should be selected now
 126     QCOMPARE(m_selectionManager->selectedItems(), QSet<int>() << 4 << 5);
 127     QVERIFY(m_selectionManager->hasSelection());
 128
 129     // Change current item again and check the selection
 130     m_selectionManager->setCurrentItem(2);
 131     QCOMPARE(m_selectionManager->currentItem(), 2);
 132     QCOMPARE(spyCurrent.count(), 1);
 133     QCOMPARE(qvariant_cast<int>(spyCurrent.at(0).at(0)), 2);
 134     QCOMPARE(qvariant_cast<int>(spyCurrent.at(0).at(1)), 4);
 135     spyCurrent.takeFirst();
 136
 137     QCOMPARE(m_selectionManager->selectedItems(), QSet<int>() << 2 << 3 << 4 << 5);
 138     QVERIFY(m_selectionManager->hasSelection());
 139
 140     // Inserting items should update current item and anchor item.
 141     m_selectionManager->itemsInserted(KItemRangeList() <<
 142                                       KItemRange(0, 1) <<
 143                                       KItemRange(2, 2) <<
 144                                       KItemRange(6, 3));
 145
 146     QCOMPARE(m_selectionManager->currentItem(), 5);
 147     QCOMPARE(spyCurrent.count(), 1);
 148     QCOMPARE(qvariant_cast<int>(spyCurrent.at(0).at(0)), 5);
 149     QCOMPARE(qvariant_cast<int>(spyCurrent.at(0).at(1)), 2);
 150     spyCurrent.takeFirst();
 151
 152     QCOMPARE(m_selectionManager->anchorItem(), 8);
 153     QCOMPARE(spyAnchor.count(), 1);
 154     QCOMPARE(qvariant_cast<int>(spyAnchor.at(0).at(0)), 8);
 155     QCOMPARE(qvariant_cast<int>(spyAnchor.at(0).at(1)), 5);
 156     spyAnchor.takeFirst();
 157
 158     QCOMPARE(m_selectionManager->selectedItems(), QSet<int>() << 5 << 6 << 7 << 8);
 159     QVERIFY(m_selectionManager->hasSelection());
 160
 161     // Removing items should update current item and anchor item.
 162     m_selectionManager->itemsRemoved(KItemRangeList() <<
 163                                      KItemRange(0, 2) <<
 164                                      KItemRange(2, 1) <<
 165                                      KItemRange(9, 2));
 166
 167     QCOMPARE(m_selectionManager->currentItem(), 2);
 168     QCOMPARE(spyCurrent.count(), 1);
 169     QCOMPARE(qvariant_cast<int>(spyCurrent.at(0).at(0)), 2);
 170     QCOMPARE(qvariant_cast<int>(spyCurrent.at(0).at(1)), 5);
 171     spyCurrent.takeFirst();
 172
 173     QCOMPARE(m_selectionManager->anchorItem(), 5);
 174     QCOMPARE(spyAnchor.count(), 1);
 175     QCOMPARE(qvariant_cast<int>(spyAnchor.at(0).at(0)), 5);
 176     QCOMPARE(qvariant_cast<int>(spyAnchor.at(0).at(1)), 8);
 177     spyAnchor.takeFirst();
 178
 179     QCOMPARE(m_selectionManager->selectedItems(), QSet<int>() << 2 << 3 << 4 << 5);
 180     QVERIFY(m_selectionManager->hasSelection());
 181
 182     // Verify that clearSelection() also clears the anchored selection.
 183     m_selectionManager->clearSelection();
 184     QCOMPARE(m_selectionManager->selectedItems(), QSet<int>());
 185     QVERIFY(!m_selectionManager->hasSelection());
 186 }
 187
 188 void KItemListSelectionManagerTest::testSetSelected_data()
 189 {
 190     QTest::addColumn<int>("index");
 191     QTest::addColumn<int>("count");
 192     QTest::addColumn<int>("expectedSelectionCount");
 193
 194     QTest::newRow("Select all") << 0 << 100 << 100;
 195     QTest::newRow("Sub selection 15 items") << 20 << 15 << 15;
 196     QTest::newRow("Sub selection 1 item") << 20 << 1 << 1;
 197     QTest::newRow("Too small index") << -1 << 100 << 0;
 198     QTest::newRow("Too large index") << 100 << 100 << 0;
 199     QTest::newRow("Too large count") << 0 << 100000 << 100;
 200     QTest::newRow("Too small count") << 0 << 0 << 0;
 201 }
 202
 203 void KItemListSelectionManagerTest::testSetSelected()
 204 {
 205     QFETCH(int, index);
 206     QFETCH(int, count);
 207     QFETCH(int, expectedSelectionCount);
 208     m_selectionManager->setSelected(index, count);
 209     QCOMPARE(m_selectionManager->selectedItems().count(), expectedSelectionCount);
 210 }
 211
 212 void KItemListSelectionManagerTest::testItemsInserted()
 213 {
 214     // Select items 10 to 12
 215     m_selectionManager->setSelected(10, 3);
 216     QSet<int> selectedItems = m_selectionManager->selectedItems();
 217     QCOMPARE(selectedItems.count(), 3);
 218     QVERIFY(selectedItems.contains(10));
 219     QVERIFY(selectedItems.contains(11));
 220     QVERIFY(selectedItems.contains(12));
 221
 222     // Insert items 0 to 4 -> selection must be 15 to 17
 223     m_selectionManager->itemsInserted(KItemRangeList() << KItemRange(0, 5));
 224     selectedItems = m_selectionManager->selectedItems();
 225     QCOMPARE(selectedItems.count(), 3);
 226     QVERIFY(selectedItems.contains(15));
 227     QVERIFY(selectedItems.contains(16));
 228     QVERIFY(selectedItems.contains(17));
 229
 230     // Insert 3 items between the selections
 231     m_selectionManager->itemsInserted(KItemRangeList() <<
 232                                       KItemRange(15, 1) <<
 233                                       KItemRange(16, 1) <<
 234                                       KItemRange(17, 1));
 235     selectedItems = m_selectionManager->selectedItems();
 236     QCOMPARE(selectedItems.count(), 3);
 237     QVERIFY(selectedItems.contains(16));
 238     QVERIFY(selectedItems.contains(18));
 239     QVERIFY(selectedItems.contains(20));
 240 }
 241
 242 void KItemListSelectionManagerTest::testItemsRemoved()
 243 {
 244     // Select items 10 to 15
 245     m_selectionManager->setSelected(10, 6);
 246     QSet<int> selectedItems = m_selectionManager->selectedItems();
 247     QCOMPARE(selectedItems.count(), 6);
 248     for (int i = 10; i <= 15; ++i) {
 249         QVERIFY(selectedItems.contains(i));
 250     }
 251
 252     // Remove items 0 to 4 -> selection must be 5 to 10
 253     m_selectionManager->itemsRemoved(KItemRangeList() << KItemRange(0, 5));
 254     selectedItems = m_selectionManager->selectedItems();
 255     QCOMPARE(selectedItems.count(), 6);
 256     for (int i = 5; i <= 10; ++i) {
 257         QVERIFY(selectedItems.contains(i));
 258     }
 259
 260     // Remove the items 6 , 8 and 10
 261     m_selectionManager->itemsRemoved(KItemRangeList() <<
 262                                      KItemRange(6, 1) <<
 263                                      KItemRange(8, 1) <<
 264                                      KItemRange(10, 1));
 265     selectedItems = m_selectionManager->selectedItems();
 266     QCOMPARE(selectedItems.count(), 3);
 267     QVERIFY(selectedItems.contains(5));
 268     QVERIFY(selectedItems.contains(6));
 269     QVERIFY(selectedItems.contains(7));
 270 }
 271
 272 void KItemListSelectionManagerTest::testAnchoredSelection()
 273 {
 274     m_selectionManager->beginAnchoredSelection(5);
 275     QVERIFY(m_selectionManager->isAnchoredSelectionActive());
 276     QCOMPARE(m_selectionManager->anchorItem(), 5);
 277
 278     m_selectionManager->setCurrentItem(6);
 279     QCOMPARE(m_selectionManager->currentItem(), 6);
 280     QCOMPARE(m_selectionManager->selectedItems(), QSet<int>() << 5 << 6);
 281
 282     m_selectionManager->setCurrentItem(4);
 283     QCOMPARE(m_selectionManager->currentItem(), 4);
 284     QCOMPARE(m_selectionManager->selectedItems(), QSet<int>() << 4 << 5);
 285
 286     m_selectionManager->setCurrentItem(7);
 287     QCOMPARE(m_selectionManager->currentItem(), 7);
 288     QCOMPARE(m_selectionManager->selectedItems(), QSet<int>() << 5 << 6 << 7);
 289
 290     // Ending the anchored selection should not change the selected items.
 291     m_selectionManager->endAnchoredSelection();
 292     QVERIFY(!m_selectionManager->isAnchoredSelectionActive());
 293     QCOMPARE(m_selectionManager->selectedItems(), QSet<int>() << 5 << 6 << 7);
 294
 295     // Start a new anchored selection that overlaps the previous one
 296     m_selectionManager->beginAnchoredSelection(9);
 297     QVERIFY(m_selectionManager->isAnchoredSelectionActive());
 298     QCOMPARE(m_selectionManager->anchorItem(), 9);
 299
 300     m_selectionManager->setCurrentItem(6);
 301     QCOMPARE(m_selectionManager->currentItem(), 6);
 302     QCOMPARE(m_selectionManager->selectedItems(), QSet<int>() << 5 << 6 << 7 << 8 << 9);
 303
 304     m_selectionManager->setCurrentItem(10);
 305     QCOMPARE(m_selectionManager->currentItem(), 10);
 306     QCOMPARE(m_selectionManager->selectedItems(), QSet<int>() << 5 << 6 << 7 << 9 << 10);
 307
 308     m_selectionManager->endAnchoredSelection();
 309     QVERIFY(!m_selectionManager->isAnchoredSelectionActive());
 310     QCOMPARE(m_selectionManager->selectedItems(), QSet<int>() << 5 << 6 << 7 << 9 << 10);
 311 }
 312
 313 namespace {
 314     enum ModelChangeType {
 315         NoChange,
 316         InsertItems,
 317         RemoveItems
 318     };
 319 }
 320
 321 Q_DECLARE_METATYPE(QSet<int>);
 322 Q_DECLARE_METATYPE(ModelChangeType);
 323 Q_DECLARE_METATYPE(KItemRangeList);
 324
 325 void KItemListSelectionManagerTest::testChangeSelection_data()
 326 {
 327     QTest::addColumn<QSet<int> >("initialSelection");
 328     QTest::addColumn<int>("anchor");
 329     QTest::addColumn<int>("current");
 330     QTest::addColumn<QSet<int> >("expectedSelection");
 331     QTest::addColumn<ModelChangeType>("changeType");
 332     QTest::addColumn<KItemRangeList>("changedItems");
 333     QTest::addColumn<QSet<int> >("finalSelection");
 334
 335     QTest::newRow("No change")
 336         << (QSet<int>() << 5 << 6)
 337         << 2 << 3
 338         << (QSet<int>() << 2 << 3 << 5 << 6)
 339         << NoChange << KItemRangeList()
 340         << (QSet<int>() << 2 << 3 << 5 << 6);
 341
 342     QTest::newRow("Insert Items")
 343         << (QSet<int>() << 5 << 6)
 344         << 2 << 3
 345         << (QSet<int>() << 2 << 3 << 5 << 6)
 346         << InsertItems << (KItemRangeList() << KItemRange(1, 1) << KItemRange(5, 2) << KItemRange(10, 5))
 347         << (QSet<int>() << 3 << 4 << 8 << 9);
 348
 349     QTest::newRow("Remove Items")
 350         << (QSet<int>() << 5 << 6)
 351         << 2 << 3
 352         << (QSet<int>() << 2 << 3 << 5 << 6)
 353         << RemoveItems << (KItemRangeList() << KItemRange(1, 1) << KItemRange(3, 1) << KItemRange(10, 5))
 354         << (QSet<int>() << 1 << 2 << 3 << 4);
 355 }
 356
 357 void KItemListSelectionManagerTest::testChangeSelection()
 358 {
 359     QFETCH(QSet<int>, initialSelection);
 360     QFETCH(int, anchor);
 361     QFETCH(int, current);
 362     QFETCH(QSet<int> , expectedSelection);
 363     QFETCH(ModelChangeType, changeType);
 364     QFETCH(KItemRangeList, changedItems);
 365     QFETCH(QSet<int> , finalSelection);
 366
 367     QSignalSpy spySelectionChanged(m_selectionManager, SIGNAL(selectionChanged(QSet<int>,QSet<int>)));
 368
 369     // Initial selection should be empty
 370     QVERIFY(!m_selectionManager->hasSelection());
 371     QVERIFY(m_selectionManager->selectedItems().isEmpty());
 372
 373     // Perform the initial selectiion
 374     m_selectionManager->setSelectedItems(initialSelection);
 375     QCOMPARE(m_selectionManager->selectedItems(), initialSelection);
 376     if (initialSelection.isEmpty()) {
 377         QVERIFY(!m_selectionManager->hasSelection());
 378         QCOMPARE(spySelectionChanged.count(), 0);
 379     }
 380     else {
 381         QVERIFY(m_selectionManager->hasSelection());
 382         QCOMPARE(spySelectionChanged.count(), 1);
 383         QList<QVariant> arguments = spySelectionChanged.takeFirst();
 384         QCOMPARE(qvariant_cast<QSet<int> >(arguments.at(0)), initialSelection);
 385         QCOMPARE(qvariant_cast<QSet<int> >(arguments.at(1)), QSet<int>());
 386     }
 387
 388     // Perform an anchored selection.
 389     // Note that current and anchor index are equal first because this is the case in typical uses of the
 390     // selection manager, and because this makes it easier to test the correctness of the signal's arguments.
 391     m_selectionManager->setCurrentItem(anchor);
 392     m_selectionManager->beginAnchoredSelection(anchor);
 393     m_selectionManager->setCurrentItem(current);
 394     QCOMPARE(m_selectionManager->selectedItems(), expectedSelection);
 395     QCOMPARE(m_selectionManager->hasSelection(), !expectedSelection.isEmpty());
 396     if (expectedSelection == initialSelection) {
 397         QCOMPARE(spySelectionChanged.count(), 0);
 398     }
 399     else {
 400         QCOMPARE(spySelectionChanged.count(), 1);
 401         QList<QVariant> arguments = spySelectionChanged.takeFirst();
 402         QCOMPARE(qvariant_cast<QSet<int> >(arguments.at(0)), expectedSelection);
 403         QCOMPARE(qvariant_cast<QSet<int> >(arguments.at(1)), initialSelection);
 404     }
 405
 406     // Change the model by inserting or removing items.
 407     switch (changeType) {
 408     case InsertItems:
 409         m_selectionManager->itemsInserted(changedItems);
 410         break;
 411     case RemoveItems:
 412         m_selectionManager->itemsRemoved(changedItems);
 413         break;
 414     case NoChange:
 415         break;
 416     }
 417
 418     QCOMPARE(m_selectionManager->selectedItems(), finalSelection);
 419     QCOMPARE(m_selectionManager->hasSelection(), !finalSelection.isEmpty());
 420     if (finalSelection == expectedSelection) {
 421         QCOMPARE(spySelectionChanged.count(), 0);
 422     }
 423     else {
 424         QCOMPARE(spySelectionChanged.count(), 1);
 425         QList<QVariant> arguments = spySelectionChanged.takeFirst();
 426         QCOMPARE(qvariant_cast<QSet<int> >(arguments.at(0)), finalSelection);
 427         QCOMPARE(qvariant_cast<QSet<int> >(arguments.at(1)), expectedSelection);
 428     }
 429
 430     // Finally, clear the selection
 431     m_selectionManager->clearSelection();
 432     QCOMPARE(m_selectionManager->selectedItems(), QSet<int>());
 433     QVERIFY(!m_selectionManager->hasSelection());
 434     if (finalSelection.isEmpty()) {
 435         // Selection has been empty already
 436         QCOMPARE(spySelectionChanged.count(), 0);
 437     }
 438     else {
 439         QCOMPARE(spySelectionChanged.count(), 1);
 440         QList<QVariant> arguments = spySelectionChanged.takeFirst();
 441         QCOMPARE(qvariant_cast<QSet<int> >(arguments.at(0)), QSet<int>());
 442         QCOMPARE(qvariant_cast<QSet<int> >(arguments.at(1)), finalSelection);
 443     }
 444 }
 445
 446 QTEST_KDEMAIN(KItemListSelectionManagerTest, NoGUI)
 447
 448 #include "kitemlistselectionmanagertest.moc"