File indexing completed on 2024-12-01 12:38:40

 /*
     This file is part of the Kate project.
     SPDX-FileCopyrightText: 2013 Dominik Haumann <dhaumann@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "katefoldingtest.h"
 
 #include <katebuffer.h>
 #include <kateconfig.h>
 #include <katedocument.h>
 #include <kateglobal.h>
 #include <katetextfolding.h>
 #include <kateview.h>
 
 #include <QJsonDocument>
 #include <QtTestWidgets>
 
 #include <memory>
 
 using namespace KTextEditor;
 
 QTEST_MAIN(KateFoldingTest)
 
 void KateFoldingTest::initTestCase()
 {
     KTextEditor::EditorPrivate::enableUnitTestMode();
 }
 
 void KateFoldingTest::cleanupTestCase()
 {
 }
 
 // This is a unit test for bug 311866 (https://bugs.kde.org/show_bug.cgi?id=311866)
 // It loads 5 lines of C++ code, places the cursor in line 4, and then folds
 // the code.
 // Expected behavior: the cursor should be moved so it stays visible
 // Buggy behavior: the cursor is hidden, and moving the hidden cursor crashes kate
 void KateFoldingTest::testCrash311866()
 {
     KTextEditor::DocumentPrivate doc;
     const QUrl url = QUrl::fromLocalFile(QLatin1String(TEST_DATA_DIR "bug311866.cpp"));
     doc.openUrl(url);
     doc.setHighlightingMode("C++");
     doc.buffer().ensureHighlighted(6);
 
     const std::unique_ptr<ViewPrivate> view{static_cast<KTextEditor::ViewPrivate *>(doc.createView(nullptr))};
     view->show();
     view->resize(400, 300);
     view->setCursorPosition(Cursor(3, 0));
     QTest::qWait(100);
 
     view->slotFoldToplevelNodes();
     doc.buffer().ensureHighlighted(6);
 
     qDebug() << "!!! Does the next line crash?";
     view->up();
 }
 
 // This test makes sure that,
 // - if you have selected text
 // - that spans a folded range,
 // - and the cursor is at the end of the text selection,
 // - and you type a char, e.g. 'x',
 // then the resulting text is correct, and changing region
 // visibility does not mess around with the text cursor.
 //
 // See https://bugs.kde.org/show_bug.cgi?id=295632
 void KateFoldingTest::testBug295632()
 {
     KTextEditor::DocumentPrivate doc;
     QString text =
         "oooossssssss\n"
         "{\n"
         "\n"
         "}\n"
         "ssssss----------";
     doc.setText(text);
 
     // view must be visible...
     const std::unique_ptr<ViewPrivate> view{static_cast<KTextEditor::ViewPrivate *>(doc.createView(nullptr))};
     view->show();
     view->resize(400, 300);
 
     qint64 foldId = view->textFolding().newFoldingRange(KTextEditor::Range(1, 0, 3, 1));
     view->textFolding().foldRange(foldId);
     QVERIFY(view->textFolding().isLineVisible(0));
     QVERIFY(view->textFolding().isLineVisible(1));
     QVERIFY(!view->textFolding().isLineVisible(2));
     QVERIFY(!view->textFolding().isLineVisible(3));
     QVERIFY(view->textFolding().isLineVisible(4));
 
     view->setSelection(Range(Cursor(0, 4), Cursor(4, 6)));
     view->setCursorPosition(Cursor(4, 6));
 
     QTest::qWait(100);
     doc.typeChars(view.get(), "x");
     QTest::qWait(100);
 
     QString line = doc.line(0);
     QCOMPARE(line, QString("oooox----------"));
 }
 
 // This testcase tests the following:
 // - the cursor is first set into the word 'hello'
 // - then lines 0-3 are folded.
 // - the real text cursor is still in the word 'hello'
 // - the important issue is: The display cursor must be in the visible line range
 // --> if this test passes, KateViewInternal's m_displayCursor is properly adapted.
 void KateFoldingTest::testCrash367466()
 {
     KTextEditor::DocumentPrivate doc;
 
     // we use only x to have equal width characters, else we fail for non-fixed width fonts
     QString text =
         "xxxx xxxx\n"
         "\n"
         "\n"
         "xxxx xxx\n"
         "xxxxx\n"
         "xxxxx\n";
     doc.setText(text);
 
     // view must be visible...
     const std::unique_ptr<ViewPrivate> view{static_cast<KTextEditor::ViewPrivate *>(doc.createView(nullptr))};
     view->show();
     view->resize(400, 300);
     view->setCursorPosition(KTextEditor::Cursor(5, 2));
     QCOMPARE(view->cursorPosition(), KTextEditor::Cursor(5, 2));
     qint64 foldId = view->textFolding().newFoldingRange(KTextEditor::Range(0, 0, 3, 8));
 
     view->textFolding().foldRange(foldId);
     QVERIFY(view->textFolding().isLineVisible(0));
     QVERIFY(!view->textFolding().isLineVisible(1));
     QVERIFY(!view->textFolding().isLineVisible(2));
     QVERIFY(!view->textFolding().isLineVisible(3));
     QVERIFY(view->textFolding().isLineVisible(4));
     QVERIFY(view->textFolding().isLineVisible(5));
 
     QCOMPARE(view->cursorPosition(), KTextEditor::Cursor(5, 2));
     view->up();
     QCOMPARE(view->cursorPosition(), KTextEditor::Cursor(4, 2));
 }
 
 void KateFoldingTest::testUnfoldingInImportFoldingRanges()
 {
     DocumentPrivate doc;
     const auto text = QStringLiteral(
         "int f(bool one) {\n"
         "    if (one) {\n"
         "        return 1;\n"
         "    } else {\n"
         "        return 0;\n"
         "    }\n"
         "}\n"
         "\n"
         "int g() {\n"
         "    return 123;\n"
         "}\n");
     doc.setText(text);
 
     // view must be visible...
     const std::unique_ptr<ViewPrivate> view{static_cast<ViewPrivate *>(doc.createView(nullptr))};
     view->show();
     view->resize(400, 300);
 
     auto &textFolding = view->textFolding();
 
     const auto addFoldedRange = [&textFolding](Range range, Kate::TextFolding::FoldingRangeFlags extraFlags = {}) {
         textFolding.newFoldingRange(range, Kate::TextFolding::Folded | extraFlags);
     };
     addFoldedRange(Range(0, 16, 6, 1)); // f()
     addFoldedRange(Range(8, 8, 10, 1)); // g()
     addFoldedRange(Range(1, 13, 3, 5), Kate::TextFolding::Persistent); // if
     addFoldedRange(Range(3, 11, 5, 5)); // else
 
     textFolding.importFoldingRanges(QJsonDocument{});
     // TextFolding::importFoldingRanges() should remove all existing folding ranges
     // - both top-level and nested -  before importing new ones.
     QCOMPARE(textFolding.debugDump(), QLatin1String("tree  - folded "));
 }
 
 #include "moc_katefoldingtest.cpp"