tree fc63b511152b7d01e1595b91803dd94b826b182e
parent bb208ff200a66a21a0805e428f341d9190df44da
author QUICHE team <quiche-dev@google.com> 1555449951 -0700
committer Copybara-Service <copybara-worker@google.com> 1555451573 -0700

Create a test utility for sending and receiving data from QuartcDataSources.

QuartcPeer serves as a delegate for QuartcEndpoint, QuartcSession, and
QuartcDataSource.  It does not own a QuartcEndpoint--it instead expects the
endpoint to be set up by a test.  It waits for the endpoint to create a session,
then initializes QuartcDataSources according to a vector of configs.  It then
sends the data produced by those sources as QUIC datagrams.

QuartcPeer is responsible for adapting the data sources to the interface
provided by the session.  It adjusts bitrates and maximum frame sizes in order
to ensure that ensure that the data produced fits in the session (in accordance
with the session's max datagram frame size and bandwidth estimate).

QuartcPeer tracks messages it receives.  It parses each message as a frame sent
by QuartcDataSource, then attaches a receive timestamp.

This cl also fixes some bugs in QuartcDataSource.  It now produces at least
enough data to include the full frame header in each of its frames.  It no
longer reschedules the send alarm if SetEnabled(true) is called when the source
is already enabled.

gfe-relnote: n/a (Quartc only)
PiperOrigin-RevId: 243879297
Change-Id: I79412e9582fbbe98eaeaf33dca3ee621261c4846