File indexing completed on 2025-03-23 12:47:16

 /*
     This file is part of the Kate project.
     SPDX-FileCopyrightText: 2010 Christoph Cullmann <cullmann@kde.org>
     SPDX-FileCopyrightText: 2010-2018 Dominik Haumann <dhaumann@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "katetextbuffertest.h"
 #include "katetextbuffer.h"
 #include "katetextcursor.h"
 #include "katetextfolding.h"
 #include <kateglobal.h>
 
 QTEST_MAIN(KateTextBufferTest)
 
 KateTextBufferTest::KateTextBufferTest()
     : QObject()
 {
     KTextEditor::EditorPrivate::enableUnitTestMode();
 }
 
 KateTextBufferTest::~KateTextBufferTest()
 {
 }
 
 void KateTextBufferTest::basicBufferTest()
 {
     // construct an empty text buffer
     Kate::TextBuffer buffer(nullptr, 1);
 
     // one line per default
     QVERIFY(buffer.lines() == 1);
     QVERIFY(buffer.text() == QString());
 
     // FIXME: use QTestLib macros for checking the correct state
     // start editing
     buffer.startEditing();
 
     // end editing
     buffer.finishEditing();
 }
 
 void KateTextBufferTest::wrapLineTest()
 {
     // construct an empty text buffer
     Kate::TextBuffer buffer(nullptr, 1);
 
     // wrap first empty line -> we should have two empty lines
     buffer.startEditing();
     buffer.wrapLine(KTextEditor::Cursor(0, 0));
     buffer.finishEditing();
     buffer.debugPrint(QLatin1String("Two empty lines"));
     QVERIFY(buffer.text() == QLatin1String("\n"));
 
     // unwrap again -> only one empty line
     buffer.startEditing();
     buffer.unwrapLine(1);
     buffer.finishEditing();
 
     // print debug
     buffer.debugPrint(QLatin1String("Empty Buffer"));
     QVERIFY(buffer.text() == QString());
 }
 
 void KateTextBufferTest::insertRemoveTextTest()
 {
     // construct an empty text buffer
     Kate::TextBuffer buffer(nullptr, 1);
 
     // wrap first line
     buffer.startEditing();
     buffer.wrapLine(KTextEditor::Cursor(0, 0));
     buffer.finishEditing();
     buffer.debugPrint(QLatin1String("Two empty lines"));
     QVERIFY(buffer.text() == QLatin1String("\n"));
 
     // remember second line
     Kate::TextLine second = buffer.line(1);
 
     // unwrap second line
     buffer.startEditing();
     buffer.unwrapLine(1);
     buffer.finishEditing();
     buffer.debugPrint(QLatin1String("One empty line"));
     QVERIFY(buffer.text() == QString());
 
     // second text line should be still there
     // const QString &secondText = second->text ();
     // QVERIFY (secondText == "")
 
     // insert text
     buffer.startEditing();
     buffer.insertText(KTextEditor::Cursor(0, 0), QLatin1String("testremovetext"));
     buffer.finishEditing();
     buffer.debugPrint(QLatin1String("One line"));
     QVERIFY(buffer.text() == QLatin1String("testremovetext"));
 
     // remove text
     buffer.startEditing();
     buffer.removeText(KTextEditor::Range(KTextEditor::Cursor(0, 4), KTextEditor::Cursor(0, 10)));
     buffer.finishEditing();
     buffer.debugPrint(QLatin1String("One line"));
     QVERIFY(buffer.text() == QLatin1String("testtext"));
 
     // wrap text
     buffer.startEditing();
     buffer.wrapLine(KTextEditor::Cursor(0, 2));
     buffer.finishEditing();
     buffer.debugPrint(QLatin1String("Two line"));
     QVERIFY(buffer.text() == QLatin1String("te\nsttext"));
 
     // unwrap text
     buffer.startEditing();
     buffer.unwrapLine(1);
     buffer.finishEditing();
     buffer.debugPrint(QLatin1String("One line"));
     QVERIFY(buffer.text() == QLatin1String("testtext"));
 }
 
 void KateTextBufferTest::cursorTest()
 {
     // last buffer content, for consistence checks
     QString lastBufferContent;
 
     // test with different block sizes
     for (int i = 1; i <= 4; ++i) {
         // construct an empty text buffer
         Kate::TextBuffer buffer(nullptr, i);
 
         // wrap first line
         buffer.startEditing();
         buffer.insertText(KTextEditor::Cursor(0, 0), QLatin1String("sfdfjdsklfjlsdfjlsdkfjskldfjklsdfjklsdjkfl"));
         buffer.wrapLine(KTextEditor::Cursor(0, 8));
         buffer.wrapLine(KTextEditor::Cursor(1, 8));
         buffer.wrapLine(KTextEditor::Cursor(2, 8));
         buffer.finishEditing();
         buffer.debugPrint(QLatin1String("Cursor buffer"));
 
         // construct cursor
         Kate::TextCursor *cursor1 = new Kate::TextCursor(buffer, KTextEditor::Cursor(0, 0), Kate::TextCursor::MoveOnInsert);
         QVERIFY(cursor1->toCursor() == KTextEditor::Cursor(0, 0));
         // printf ("cursor %d, %d\n", cursor1->line(), cursor1->column());
 
         // Kate::TextCursor *cursor2 = new Kate::TextCursor (buffer, KTextEditor::Cursor (1, 8), Kate::TextCursor::MoveOnInsert);
         // printf ("cursor %d, %d\n", cursor2->line(), cursor2->column());
 
         // Kate::TextCursor *cursor3 = new Kate::TextCursor (buffer, KTextEditor::Cursor (0, 123), Kate::TextCursor::MoveOnInsert);
         // printf ("cursor %d, %d\n", cursor3->line(), cursor3->column());
 
         // Kate::TextCursor *cursor4 = new Kate::TextCursor (buffer, KTextEditor::Cursor (1323, 1), Kate::TextCursor::MoveOnInsert);
         // printf ("cursor %d, %d\n", cursor4->line(), cursor4->column());
 
         // insert text
         buffer.startEditing();
         buffer.insertText(KTextEditor::Cursor(0, 0), QLatin1String("hallo"));
         buffer.finishEditing();
         buffer.debugPrint(QLatin1String("Cursor buffer"));
 
         // printf ("cursor %d, %d\n", cursor1->line(), cursor1->column());
         QVERIFY(cursor1->toCursor() == KTextEditor::Cursor(0, 5));
 
         // remove text
         buffer.startEditing();
         buffer.removeText(KTextEditor::Range(KTextEditor::Cursor(0, 4), KTextEditor::Cursor(0, 10)));
         buffer.finishEditing();
         buffer.debugPrint(QLatin1String("Cursor buffer"));
 
         // printf ("cursor %d, %d\n", cursor1->line(), cursor1->column());
         QVERIFY(cursor1->toCursor() == KTextEditor::Cursor(0, 4));
 
         // wrap line
         buffer.startEditing();
         buffer.wrapLine(KTextEditor::Cursor(0, 3));
         buffer.finishEditing();
         buffer.debugPrint(QLatin1String("Cursor buffer"));
 
         // printf ("cursor %d, %d\n", cursor1->line(), cursor1->column());
         QVERIFY(cursor1->toCursor() == KTextEditor::Cursor(1, 1));
 
         // unwrap line
         buffer.startEditing();
         buffer.unwrapLine(1);
         buffer.finishEditing();
         buffer.debugPrint(QLatin1String("Cursor buffer"));
 
         // printf ("cursor %d, %d\n", cursor1->line(), cursor1->column());
         QVERIFY(cursor1->toCursor() == KTextEditor::Cursor(0, 4));
 
         // verify content
         if (i > 1) {
             QVERIFY(lastBufferContent == buffer.text());
         }
 
         // remember content
         lastBufferContent = buffer.text();
     }
 }
 
 void KateTextBufferTest::foldingTest()
 {
     // construct an empty text buffer & folding info
     Kate::TextBuffer buffer(nullptr, 1);
     Kate::TextFolding folding(buffer);
 
     // insert some text
     buffer.startEditing();
     for (int i = 0; i < 100; ++i) {
         buffer.insertText(KTextEditor::Cursor(i, 0), QLatin1String("1234567890"));
         if (i < 99) {
             buffer.wrapLine(KTextEditor::Cursor(i, 10));
         }
     }
     buffer.finishEditing();
     QVERIFY(buffer.lines() == 100);
 
     // starting with empty folding!
     folding.debugPrint(QLatin1String("Empty Folding"));
     QVERIFY(folding.debugDump() == QLatin1String("tree  - folded "));
 
     // check visibility
     QVERIFY(folding.isLineVisible(0));
     QVERIFY(folding.isLineVisible(99));
 
     // all visible
     QVERIFY(folding.visibleLines() == 100);
 
     // we shall be able to insert new range
     QVERIFY(folding.newFoldingRange(KTextEditor::Range(KTextEditor::Cursor(5, 0), KTextEditor::Cursor(10, 0))) == 0);
 
     // we shall have now exactly one range toplevel, that is not folded!
     folding.debugPrint(QLatin1String("One Toplevel Fold"));
     QVERIFY(folding.debugDump() == QLatin1String("tree [5:0  10:0] - folded "));
 
     // fold the range!
     QVERIFY(folding.foldRange(0));
 
     folding.debugPrint(QLatin1String("One Toplevel Fold - Folded"));
     QVERIFY(folding.debugDump() == QLatin1String("tree [5:0 f 10:0] - folded [5:0 f 10:0]"));
 
     // check visibility
     QVERIFY(folding.isLineVisible(5));
     for (int i = 6; i <= 10; ++i) {
         QVERIFY(!folding.isLineVisible(i));
     }
     QVERIFY(folding.isLineVisible(11));
 
     // 5 lines are hidden
     QVERIFY(folding.visibleLines() == (100 - 5));
 
     // check line mapping
     QVERIFY(folding.visibleLineToLine(5) == 5);
     for (int i = 6; i <= 50; ++i) {
         QVERIFY(folding.visibleLineToLine(i) == (i + 5));
     }
 
     // there shall be one range starting at 5
     QVector<QPair<qint64, Kate::TextFolding::FoldingRangeFlags>> forLine = folding.foldingRangesStartingOnLine(5);
     QVERIFY(forLine.size() == 1);
     QVERIFY(forLine[0].first == 0);
     QVERIFY(forLine[0].second & Kate::TextFolding::Folded);
 
     // we shall be able to insert new range
     QVERIFY(folding.newFoldingRange(KTextEditor::Range(KTextEditor::Cursor(20, 0), KTextEditor::Cursor(30, 0)), Kate::TextFolding::Folded) == 1);
 
     // we shall have now exactly two range toplevel
     folding.debugPrint(QLatin1String("Two Toplevel Folds"));
     QVERIFY(folding.debugDump() == QLatin1String("tree [5:0 f 10:0] [20:0 f 30:0] - folded [5:0 f 10:0] [20:0 f 30:0]"));
 
     // check visibility
     QVERIFY(folding.isLineVisible(5));
     for (int i = 6; i <= 10; ++i) {
         QVERIFY(!folding.isLineVisible(i));
     }
     QVERIFY(folding.isLineVisible(11));
 
     QVERIFY(folding.isLineVisible(20));
     for (int i = 21; i <= 30; ++i) {
         QVERIFY(!folding.isLineVisible(i));
     }
     QVERIFY(folding.isLineVisible(31));
 
     // 15 lines are hidden
     QVERIFY(folding.visibleLines() == (100 - 5 - 10));
 
     // check line mapping
     QVERIFY(folding.visibleLineToLine(5) == 5);
     for (int i = 6; i <= 15; ++i) {
         QVERIFY(folding.visibleLineToLine(i) == (i + 5));
     }
     for (int i = 16; i <= 50; ++i) {
         QVERIFY(folding.visibleLineToLine(i) == (i + 15));
     }
 
     // check line mapping
     QVERIFY(folding.lineToVisibleLine(5) == 5);
     for (int i = 11; i <= 20; ++i) {
         QVERIFY(folding.lineToVisibleLine(i) == (i - 5));
     }
     for (int i = 31; i <= 40; ++i) {
         QVERIFY(folding.lineToVisibleLine(i) == (i - 15));
     }
 
     // there shall be one range starting at 20
     forLine = folding.foldingRangesStartingOnLine(20);
     QVERIFY(forLine.size() == 1);
     QVERIFY(forLine[0].first == 1);
     QVERIFY(forLine[0].second & Kate::TextFolding::Folded);
 
     // this shall fail to be inserted, as it badly overlaps with the first range!
     QVERIFY(folding.newFoldingRange(KTextEditor::Range(KTextEditor::Cursor(6, 0), KTextEditor::Cursor(15, 0)), Kate::TextFolding::Folded) == -1);
 
     // this shall fail to be inserted, as it badly overlaps with the second range!
     QVERIFY(folding.newFoldingRange(KTextEditor::Range(KTextEditor::Cursor(15, 0), KTextEditor::Cursor(25, 0)), Kate::TextFolding::Folded) == -1);
 
     // we shall still have now exactly two range toplevel
     folding.debugPrint(QLatin1String("Still Two Toplevel Folds"));
     QVERIFY(folding.debugDump() == QLatin1String("tree [5:0 f 10:0] [20:0 f 30:0] - folded [5:0 f 10:0] [20:0 f 30:0]"));
 
     // still 15 lines are hidden
     QVERIFY(folding.visibleLines() == (100 - 5 - 10));
 
     // we shall be able to insert new range, should lead to nested folds!
     QVERIFY(folding.newFoldingRange(KTextEditor::Range(KTextEditor::Cursor(15, 0), KTextEditor::Cursor(35, 0)), Kate::TextFolding::Folded) == 2);
 
     // we shall have now exactly two range toplevel and one embedded fold
     folding.debugPrint(QLatin1String("Two Toplevel Folds, One Nested Fold"));
     QVERIFY(folding.debugDump() == QLatin1String("tree [5:0 f 10:0] [15:0 f [20:0 f 30:0] 35:0] - folded [5:0 f 10:0] [15:0 f 35:0]"));
 
     // 25 lines are hidden
     QVERIFY(folding.visibleLines() == (100 - 5 - 20));
 
     // check line mapping
     QVERIFY(folding.lineToVisibleLine(5) == 5);
     for (int i = 11; i <= 15; ++i) {
         QVERIFY(folding.lineToVisibleLine(i) == (i - 5));
     }
 
     // special case: hidden lines, should fall ack to last visible one!
     for (int i = 16; i <= 35; ++i) {
         QVERIFY(folding.lineToVisibleLine(i) == 10);
     }
 
     for (int i = 36; i <= 40; ++i) {
         QVERIFY(folding.lineToVisibleLine(i) == (i - 25));
     }
 
     // we shall be able to insert new range, should lead to nested folds!
     QVERIFY(folding.newFoldingRange(KTextEditor::Range(KTextEditor::Cursor(0, 0), KTextEditor::Cursor(50, 0)), Kate::TextFolding::Folded) == 3);
 
     // we shall have now exactly one range toplevel and many embedded fold
     folding.debugPrint(QLatin1String("One Toplevel + Embedded Folds"));
     QVERIFY(folding.debugDump() == QLatin1String("tree [0:0 f [5:0 f 10:0] [15:0 f [20:0 f 30:0] 35:0] 50:0] - folded [0:0 f 50:0]"));
 
     // there shall still be one range starting at 20
     forLine = folding.foldingRangesStartingOnLine(20);
     QVERIFY(forLine.size() == 1);
     QVERIFY(forLine[0].first == 1);
     QVERIFY(forLine[0].second & Kate::TextFolding::Folded);
 
     // add more regions starting at 20
     QVERIFY(folding.newFoldingRange(KTextEditor::Range(KTextEditor::Cursor(20, 5), KTextEditor::Cursor(24, 0)), Kate::TextFolding::Folded) == 4);
     QVERIFY(folding.newFoldingRange(KTextEditor::Range(KTextEditor::Cursor(20, 3), KTextEditor::Cursor(25, 0)), Kate::TextFolding::Folded) == 5);
     folding.debugPrint(QLatin1String("More ranges at 20"));
 
     // there shall still be three ranges starting at 20
     forLine = folding.foldingRangesStartingOnLine(20);
     QVERIFY(forLine.size() == 3);
     QVERIFY(forLine[0].first == 1);
     QVERIFY(forLine[0].second & Kate::TextFolding::Folded);
     QVERIFY(forLine[1].first == 5);
     QVERIFY(forLine[1].second & Kate::TextFolding::Folded);
     QVERIFY(forLine[2].first == 4);
     QVERIFY(forLine[2].second & Kate::TextFolding::Folded);
 
     // 50 lines are hidden
     QVERIFY(folding.visibleLines() == (100 - 50));
 
     // save state
     QJsonDocument folds = folding.exportFoldingRanges();
     QString textDump = folding.debugDump();
 
     // clear folds
     folding.clear();
     QVERIFY(folding.debugDump() == QLatin1String("tree  - folded "));
 
     // restore state
     folding.importFoldingRanges(folds);
     QVERIFY(folding.debugDump() == textDump);
 }
 
 void KateTextBufferTest::nestedFoldingTest()
 {
     // construct an empty text buffer & folding info
     Kate::TextBuffer buffer(nullptr, 1);
     Kate::TextFolding folding(buffer);
 
     // insert two nested folds in 5 lines
     buffer.startEditing();
     for (int i = 0; i < 4; ++i) {
         buffer.wrapLine(KTextEditor::Cursor(0, 0));
     }
     buffer.finishEditing();
 
     QVERIFY(buffer.lines() == 5);
 
     // folding for line 1
     QVERIFY(folding.newFoldingRange(KTextEditor::Range(KTextEditor::Cursor(0, 0), KTextEditor::Cursor(3, 0)), Kate::TextFolding::Folded) == 0);
     QVERIFY(folding.newFoldingRange(KTextEditor::Range(KTextEditor::Cursor(1, 0), KTextEditor::Cursor(2, 0)), Kate::TextFolding::Folded) == 1);
 
     QVERIFY(folding.foldRange(1));
     QVERIFY(folding.foldRange(0));
 
     QVERIFY(folding.unfoldRange(0));
     QVERIFY(folding.unfoldRange(1));
 }
 
 void KateTextBufferTest::saveFileInUnwritableFolder()
 {
     // create temp dir and get file name inside
     QTemporaryDir dir;
     QVERIFY(dir.isValid());
     const QString folder_name = dir.path();
     const QString file_path = folder_name + QLatin1String("/foo");
 
     QFile f(file_path);
     QVERIFY(f.open(QIODevice::WriteOnly | QIODevice::Truncate));
     f.write("1234567890");
     QVERIFY(f.flush());
     f.close();
 
     QFile::setPermissions(folder_name, QFile::ExeOwner);
 
     Kate::TextBuffer buffer(nullptr, 1);
     buffer.setTextCodec(QTextCodec::codecForName("UTF-8"));
     buffer.setFallbackTextCodec(QTextCodec::codecForName("UTF-8"));
     bool a;
     bool b;
     int c;
     buffer.load(file_path, a, b, c, true);
     buffer.clear();
     buffer.startEditing();
     buffer.insertText(KTextEditor::Cursor(0, 0), QLatin1String("ABC"));
     buffer.finishEditing();
     qDebug() << buffer.text();
     buffer.save(file_path);
 
     f.open(QIODevice::ReadOnly);
     QCOMPARE(f.readAll(), QByteArray("ABC"));
     f.close();
 
     QFile::setPermissions(folder_name, QFile::WriteOwner | QFile::ExeOwner);
     QVERIFY(f.remove());
     QVERIFY(dir.remove());
 }
 
 #if HAVE_KAUTH
 void KateTextBufferTest::saveFileWithElevatedPrivileges()
 {
     // create temp dir and get file name inside
     QTemporaryDir dir;
     QVERIFY(dir.isValid());
     const QString file_path = dir.path() + QLatin1String("/foo");
 
     QFile f(file_path);
     QVERIFY(f.open(QIODevice::WriteOnly | QIODevice::Truncate));
     f.write("1234567890");
     QVERIFY(f.flush());
     f.close();
 
     Kate::TextBuffer buffer(nullptr, 1, true);
     buffer.setTextCodec(QTextCodec::codecForName("UTF-8"));
     buffer.setFallbackTextCodec(QTextCodec::codecForName("UTF-8"));
     bool a;
     bool b;
     int c;
     buffer.load(file_path, a, b, c, true);
     buffer.clear();
     buffer.startEditing();
     buffer.insertText(KTextEditor::Cursor(0, 0), QLatin1String("ABC"));
     buffer.finishEditing();
     qDebug() << buffer.text();
     buffer.save(file_path);
 
     f.open(QIODevice::ReadOnly);
     QCOMPARE(f.readAll(), QByteArray("ABC"));
     f.close();
 
     QVERIFY(f.remove());
     QVERIFY(dir.remove());
 }
 #endif
 
 #include "moc_katetextbuffertest.cpp"