shiboken6/Documentation: Fix formatting tables on QIODevices

Flush the device before returning the position which is used
in the AlignedField helper.

Task-number: PYSIDE-841
Change-Id: Id1be81d2819f9682267930076898c79cd68c2bbf
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>
(cherry picked from commit da15fc958dafc51901431cf5d9b98b082c8c2690)

3 files changed, 24 insertions, 0 deletions

diff --git a/sources/shiboken6/ApiExtractor/textstream.cpp b/sources/shiboken6/ApiExtractor/textstream.cpp
index f3b2dd13f..364634f2d 100644
--- a/sources/shiboken6/ApiExtractor/textstream.cpp
+++ b/sources/shiboken6/ApiExtractor/textstream.cpp
@@ -70,6 +70,8 @@ qint64 TextStream::pos() const
     // QTextStream::pos() only works for QIODevice, be a bit smarter
     if (auto s = m_str.string())
         return s->size();
+    // QIODevices need to flushed to tell the correct position.
+    const_cast<QTextStream &>(m_str).flush();
     return m_str.pos();
 }
 
diff --git a/sources/shiboken6/tests/qtxmltosphinxtest/qtxmltosphinxtest.cpp b/sources/shiboken6/tests/qtxmltosphinxtest/qtxmltosphinxtest.cpp
index 5bac4d956..c9aebc443 100644
--- a/sources/shiboken6/tests/qtxmltosphinxtest/qtxmltosphinxtest.cpp
+++ b/sources/shiboken6/tests/qtxmltosphinxtest/qtxmltosphinxtest.cpp
@@ -431,4 +431,24 @@ void QtXmlToSphinxTest::testTableFormatting()
     QCOMPARE(actual, expected);
 }
 
+void QtXmlToSphinxTest::testTableFormattingIoDevice_data()
+{
+    testTableFormatting_data();
+}
+
+void QtXmlToSphinxTest::testTableFormattingIoDevice()
+{
+    QFETCH(TablePtr, table);
+    QFETCH(QString, expected);
+
+    QByteArray byteArray;
+    {
+        TextStream str(&byteArray);
+        table->format(str);
+    }
+    const QString actual = QString::fromUtf8(byteArray);
+
+    QCOMPARE(actual, expected);
+}
+
 QTEST_APPLESS_MAIN( QtXmlToSphinxTest)
diff --git a/sources/shiboken6/tests/qtxmltosphinxtest/qtxmltosphinxtest.h b/sources/shiboken6/tests/qtxmltosphinxtest/qtxmltosphinxtest.h
index 0459fdb6d..083ebb091 100644
--- a/sources/shiboken6/tests/qtxmltosphinxtest/qtxmltosphinxtest.h
+++ b/sources/shiboken6/tests/qtxmltosphinxtest/qtxmltosphinxtest.h
@@ -49,6 +49,8 @@ private slots:
     void testTable();
     void testTableFormatting_data();
     void testTableFormatting();
+    void testTableFormattingIoDevice_data();
+    void testTableFormattingIoDevice();
 
 private:
     QString transformXml(const QString &xml) const;