HTTP/2: use a non-default MAX_FRAME_SIZE

And send it in our 'SETTINGS' frame. Add an auto-test
for this and (as a bonus) - fix a bug accidentally
introduced by the previous change.

Task-number: QTBUG-77412
Change-Id: I4277ff47e8d8d3b6b8666fbcd7dc73c827f349c0
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

1 files changed, 5 insertions, 1 deletions

diff --git a/tests/auto/network/access/http2/http2srv.cpp b/tests/auto/network/access/http2/http2srv.cpp
index 1ddb6aa77d..a8eebf5a24 100644
--- a/tests/auto/network/access/http2/http2srv.cpp
+++ b/tests/auto/network/access/http2/http2srv.cpp
@@ -218,7 +218,7 @@ void Http2Server::sendDATA(quint32 streamID, quint32 windowSize)
 
     quint32 bytesToSend = std::min<quint32>(windowSize, responseBody.size() - offset);
     quint32 bytesSent = 0;
-    const quint32 frameSizeLimit(clientSetting(Settings::MAX_FRAME_SIZE_ID, Http2::maxPayloadSize));
+    const quint32 frameSizeLimit(clientSetting(Settings::MAX_FRAME_SIZE_ID, Http2::minPayloadLimit));
     const uchar *src = reinterpret_cast<const uchar *>(responseBody.constData() + offset);
     const bool last = offset + bytesToSend == quint32(responseBody.size());
 
@@ -236,6 +236,10 @@ void Http2Server::sendDATA(quint32 streamID, quint32 windowSize)
         src += chunkSize;
         bytesToSend -= chunkSize;
         bytesSent += chunkSize;
+        if (frameSizeLimit != Http2::minPayloadLimit) {
+            // Our test is probably interested in how many DATA frames were sent.
+            emit sendingData();
+        }
     }
 
     if (interrupted.loadAcquire())