File indexing completed on 2024-05-05 03:53:33

 /*
     This file is part of the KDE libraries
     SPDX-FileCopyrightText: 2007 David Faure <faure@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include <QSignalSpy>
 #include <QTest>
 #include <khistorycombobox.h>
 #include <klineedit.h>
 
 class KTestComboBox : public KComboBox
 {
 public:
     KTestComboBox(bool rw, QWidget *parent = nullptr)
         : KComboBox(rw, parent)
     {
     }
     KCompletionBase *delegate() const
     {
         return KCompletionBase::delegate();
     }
 };
 
 class KComboBox_UnitTest : public QObject
 {
     Q_OBJECT
 
 private:
     void testComboReturnPressed(bool ctorArg)
     {
         KComboBox w(ctorArg /*initial value for editable*/);
         w.setEditable(true);
         w.setCompletionMode(KCompletion::CompletionPopup);
         w.addItem(QStringLiteral("Hello world"));
         QVERIFY(w.lineEdit());
         auto lineEdit = qobject_cast<KLineEdit *>(w.lineEdit());
         QVERIFY(lineEdit);
 
         // set editable again, don't recreate the line edit
         w.setEditable(true);
         QCOMPARE(w.lineEdit(), lineEdit);
         // KLineEdit signals
         QSignalSpy qReturnPressedSpy(w.lineEdit(), &QLineEdit::returnPressed);
 
         QSignalSpy kEditReturnKeyPressedSpy(lineEdit, &KLineEdit::returnKeyPressed);
 
         // KComboBox signals
         QSignalSpy comboReturnPressedStringSpy(&w, qOverload<const QString &>(&KComboBox::returnPressed));
 
         QSignalSpy comboActivatedSpy(&w, &QComboBox::textActivated);
         QTest::keyClick(&w, Qt::Key_Return);
         QCOMPARE(qReturnPressedSpy.count(), 1);
 
         QCOMPARE(kEditReturnKeyPressedSpy.count(), 1);
         QCOMPARE(kEditReturnKeyPressedSpy.at(0).at(0).toString(), QStringLiteral("Hello world"));
 
         QCOMPARE(comboReturnPressedStringSpy.count(), 1);
         QCOMPARE(comboReturnPressedStringSpy[0][0].toString(), QString("Hello world"));
 
         QCOMPARE(comboActivatedSpy.count(), 1);
         QCOMPARE(comboActivatedSpy[0][0].toString(), QString("Hello world"));
     }
 
 private Q_SLOTS:
     void testComboReturnPressed()
     {
         testComboReturnPressed(false);
         testComboReturnPressed(true);
     }
 
     void testHistoryComboReturnPressed()
     {
         KHistoryComboBox w;
         QVERIFY(qobject_cast<KLineEdit *>(w.lineEdit()));
         QSignalSpy comboReturnPressedStringSpy(&w, qOverload<const QString &>(&KComboBox::returnPressed));
         connect(&w, &KHistoryComboBox::textActivated, &w, &KHistoryComboBox::addToHistory);
         QSignalSpy comboActivatedSpy(&w, &QComboBox::textActivated);
         QTest::keyClicks(&w, QStringLiteral("Hello world"));
         QTest::keyClick(&w, Qt::Key_Return);
         qApp->processEvents(); // QueuedConnection in KHistoryComboBox
         QCOMPARE(comboReturnPressedStringSpy.count(), 1);
         QCOMPARE(comboReturnPressedStringSpy[0][0].toString(), QString("Hello world"));
 
         QCOMPARE(comboActivatedSpy.count(), 1);
         QCOMPARE(comboActivatedSpy[0][0].toString(), QString("Hello world"));
     }
 
     void testHistoryComboKeyUp()
     {
         KHistoryComboBox w;
         QStringList items;
         items << QStringLiteral("One") << QStringLiteral("Two") << QStringLiteral("Three") << QStringLiteral("Four");
         w.addItems(items);
         QSignalSpy currentIndexChangedSpy(&w, &QComboBox::currentIndexChanged);
         w.completionObject()->setItems(items);
         QCOMPARE(w.currentIndex(), 0);
         QTest::keyClick(&w, Qt::Key_Up);
         QCOMPARE(w.currentIndex(), 1);
         QCOMPARE(currentIndexChangedSpy.count(), 1);
         QCOMPARE(currentIndexChangedSpy[0][0].toInt(), 1);
     }
 
     void testHistoryComboInsertItems()
     {
         KHistoryComboBox combo;
         // uic generates code like this, let's make sure it compiles
         combo.insertItems(0, QStringList() << QStringLiteral("foo"));
     }
 
     void testHistoryComboReset()
     {
         // It only tests that it doesn't crash
         // TODO: Finish
         KHistoryComboBox combo;
         QStringList items;
         items << QStringLiteral("One") << QStringLiteral("Two");
         combo.addItems(items);
         combo.reset();
     }
 
     void testDeleteLineEdit()
     {
         // Test for KCombo's KLineEdit destruction
         KTestComboBox *testCombo = new KTestComboBox(true, nullptr); // rw, with KLineEdit
         testCombo->setEditable(false); // destroys our KLineEdit, with deleteLater
         qApp->sendPostedEvents(nullptr, QEvent::DeferredDelete);
         QVERIFY(testCombo->KTestComboBox::delegate() == nullptr);
         delete testCombo; // not needed anymore
     }
 
     void testLineEditCompletion()
     {
         QFETCH(bool, editable);
         QPointer<KCompletion> completion;
         QPointer<KLineEdit> lineEdit;
         QPointer<KLineEdit> lineEdit2;
 
         {
             // Test for KCombo's KLineEdit inheriting the completion object of the parent
             KTestComboBox testCombo(editable, nullptr);
 
             // we only have a line edit when we are editable already
             QCOMPARE(static_cast<bool>(testCombo.lineEdit()), editable);
 
             // we can always get a completion object
             // NOTE: for an editable combo, this refers to the completion object of
             // the internal line edit
             // NOTE: for a not-yet-editable combo, this refers to the completion object
             // that belongs to the combo directly
             completion = testCombo.completionObject();
             QVERIFY(completion);
 
             // make editable
             testCombo.setEditable(true);
             QVERIFY(completion); // completion is still alive
 
             // verify that the completion object was set on the line edit
             lineEdit = qobject_cast<KLineEdit *>(testCombo.lineEdit());
             QVERIFY(lineEdit);
             QVERIFY(lineEdit->compObj());
             QCOMPARE(lineEdit->compObj(), completion.data());
             QCOMPARE(testCombo.completionObject(), completion.data());
 
             // don't lose the completion and don't crash when we set a new line edit
             // NOTE: only reuse the completion when it belongs to the combo box
             lineEdit2 = new KLineEdit(&testCombo);
             QVERIFY(!lineEdit2->compObj());
             testCombo.setLineEdit(lineEdit2);
             QVERIFY(!lineEdit); // first line edit got deleted now
             if (editable) {
                 QVERIFY(!completion); // got deleted with the line edit
                 // but we get a new one from the second line edit
                 completion = testCombo.completionObject();
             }
             QVERIFY(completion);
             QCOMPARE(lineEdit2->compObj(), completion.data());
             QCOMPARE(testCombo.completionObject(), completion.data());
         }
 
         // ensure nothing gets leaked
         QVERIFY(!completion);
         QVERIFY(!lineEdit2);
     }
 
     void testLineEditCompletion_data()
     {
         QTest::addColumn<bool>("editable");
         QTest::newRow("deferred-editable") << false;
         QTest::newRow("editable") << true;
     }
 
     void testSelectionResetOnReturn()
     {
         // void QComboBoxPrivate::_q_returnPressed() calls lineEdit->deselect()
         KHistoryComboBox *testCombo = new KHistoryComboBox(true, nullptr);
         QCOMPARE(testCombo->insertPolicy(), QComboBox::NoInsert); // not the Qt default; KHistoryComboBox changes that
         QTest::keyClicks(testCombo, QStringLiteral("Hello world"));
         testCombo->lineEdit()->setSelection(5, 3);
         QVERIFY(testCombo->lineEdit()->hasSelectedText());
         QTest::keyClick(testCombo, Qt::Key_Return);
         // Changed in Qt5: it only does that if insertionPolicy isn't NoInsert.
         // Should we add a lineEdit()->deselect() in KHistoryComboBox? Why does this matter?
         QEXPECT_FAIL("", "Qt5: QComboBox doesn't deselect text anymore on returnPressed", Continue);
         QVERIFY(!testCombo->lineEdit()->hasSelectedText());
     }
 };
 
 QTEST_MAIN(KComboBox_UnitTest)
 
 #include "kcombobox_unittest.moc"