Verify web link geometry, full addresses, mixed schemes and drag copying

tools/chatgui/tests/test_invite_links.cpp

@@ -2,6 +2,7 @@
 #include "../src/messagedelegate.h"
 #include "../src/chatview.h"
 #include "../src/accountdelegate.h"
+#include "../src/message_links.h"
 #include <QtTest>
 #include <QStandardItemModel>
 #include <QClipboard>
@@ -12,6 +13,80 @@ extern "C" {
 class InviteLinksTest : public QObject {
     Q_OBJECT
 private slots:
+    void messageLinkBoundaries() {
+        QFile fixture(QFINDTESTDATA("message_links_cases.tsv"));
+        QVERIFY(fixture.open(QIODevice::ReadOnly));
+        int count = 0;
+        for (const auto& line : QString::fromUtf8(fixture.readAll()).split('\n')) {
+            if (line.isEmpty() || line.startsWith('#')) continue;
+            auto columns = line.split('\t');
+            QString text = columns.takeFirst(); text.replace(QStringLiteral("\\n"), QStringLiteral("\n"));
+            const auto links = messageLinks(text);
+            QStringList urls;
+            int end = 0;
+            for (const auto& link : links) {
+                urls.append(link.url);
+                QVERIFY(link.start >= end);
+                QCOMPARE(text.mid(link.start, link.length), link.url);
+                end = link.start + link.length;
+            }
+            QCOMPARE(urls, columns);
+            count++;
+        }
+        QVERIFY(count >= 15);
+    }
+
+    void webLinksUsePaintedCoordinatesAndDragDoesNotOpen() {
+        const QString first = QStringLiteral("https://пример.рф/путь?") + QString(160, 'a') + QStringLiteral("=1#fragment");
+        const QString second = QStringLiteral("http://example.org/a(b)?x=2");
+        const QString invite = QStringLiteral("utun://abc+/==");
+        const QString text = QStringLiteral("✨ (%1),\nВторая: %2.\nПриглашение: %3").arg(first, second, invite);
+        QStandardItemModel model;
+        auto* message = new QStandardItem;
+        message->setData(text, MsgTextRole); message->setData(QStringLiteral("text/plain"), MsgContentTypeRole);
+        message->setData(true, MsgIsOutgoingRole); model.appendRow(message);
+        ChatView view; MessageDelegate delegate;
+        view.setModel(&model); view.setItemDelegate(&delegate); view.resize(280, 900);
+        view.setLinkHitTest([&](const QModelIndex& index, const QPoint& point) {
+            QStyleOptionViewItem option; option.initFrom(&view); option.widget = &view; option.rect = view.visualRect(index);
+            return delegate.linkAt(option, index, point);
+        });
+        view.show(); QTest::qWait(30);
+        const QModelIndex index = model.index(0, 0);
+        QStyleOptionViewItem option; option.initFrom(&view); option.widget = &view; option.rect = view.visualRect(index);
+        QMap<QString, QPoint> points;
+        QSet<int> rows;
+        for (int y = 8; y < option.rect.height(); y += 8) {
+            for (int x = 8; x < view.viewport()->width(); x += 12) {
+                const QString hit = delegate.linkAt(option, index, QPoint(x, y));
+                if (hit.isEmpty()) continue;
+                QVERIFY(hit == first || hit == second || hit == invite);
+                points[hit] = QPoint(x, y);
+                if (hit == first) rows.insert(y);
+            }
+        }
+        QCOMPARE(points.size(), 3); QVERIFY(rows.size() > 4);
+        QVERIFY(delegate.linkAt(option, index, QPoint(0, 0)).isEmpty());
+        QSignalSpy clicked(&view, &ChatView::linkActivated);
+        for (const auto& link : {first, second, invite}) {
+            QTest::mouseClick(view.viewport(), Qt::LeftButton, Qt::NoModifier, points.value(link));
+            QCOMPARE(clicked.last().first().toString(), link);
+        }
+        QCOMPARE(clicked.count(), 3);
+        const QPoint start = points.value(first), end = start + QPoint(20, 0);
+        QTest::mousePress(view.viewport(), Qt::LeftButton, Qt::NoModifier, start);
+        QMouseEvent drag(QEvent::MouseMove, end, view.viewport()->mapToGlobal(end), Qt::NoButton, Qt::LeftButton, Qt::NoModifier);
+        QApplication::sendEvent(view.viewport(), &drag);
+        QTest::mouseRelease(view.viewport(), Qt::LeftButton, Qt::NoModifier, end);
+        QTest::qWait(20);
+        QCOMPARE(clicked.count(), 3);
+        const auto selection = view.textSelection();
+        QVERIFY(selection.startChar >= text.indexOf(first) && selection.endChar <= text.indexOf(first) + first.length());
+        QVERIFY(selection.endChar > selection.startChar);
+        QTest::keyClick(&view, Qt::Key_C, Qt::ControlModifier);
+        QCOMPARE(QApplication::clipboard()->text(), text.mid(selection.startChar, selection.endChar - selection.startChar));
+    }
+
     void compactInvitationUsesFullLinkForClickAndCopy() {
         struct InviteData invite = {};
         invite.channelId = 42; invite.join_key = 123; invite.pubkey[0] = 1; invite.addrCount = 8;