Merge remote-tracking branch 'origin/5.12.5' into 5.12

Change-Id: I41a252fdbf22551aadb0b1a6e9ecf3f95f99fbd4

1 files changed, 17 insertions, 0 deletions

diff --git a/tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp b/tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp
index 9c477589f9..f0a32c2ed4 100644
--- a/tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp
+++ b/tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp
@@ -138,6 +138,7 @@ private slots:
     void noModificationOfInputString();
     void superscriptCrash_qtbug53911();
     void showLineAndParagraphSeparatorsCrash();
+    void tooManyDirectionalCharctersCrash_qtbug77819();
 
 private:
     QFont testFont;
@@ -2309,5 +2310,21 @@ void tst_QTextLayout::nbspWithFormat()
     QCOMPARE(layout.lineAt(1).textLength(), s2.length() + 1 + s3.length());
 }
 
+void tst_QTextLayout::tooManyDirectionalCharctersCrash_qtbug77819()
+{
+    QString data;
+    data += QString::fromUtf8("\xe2\x81\xa8"); // U+2068 FSI character
+    data += QString::fromUtf8("\xe2\x81\xa7"); // U+2067 RLI character
+
+    // duplicating the text
+    for (int i = 0; i < 10; i++)
+        data += data;
+
+    // Nothing to test. It must not crash in beginLayout().
+    QTextLayout tl(data);
+    tl.beginLayout();
+    tl.endLayout();
+}
+
 QTEST_MAIN(tst_QTextLayout)
 #include "tst_qtextlayout.moc"