Allow variable length connection IDs in v99
This CL enables the use of QUIC variable length connection IDs (VLCIDs) in v99. It also relaxes some checks when VLCIDs are enabled, and fixes tests that were relying on this. This CL also fixes QuicFramerTest.MissingDiversificationNonce as this work uncovered that the test was failure to parse headers because the headers were wrong, instead of testing for missing diversification nonces.
gfe-relnote: change only impacts v99 and tests, not flag protected
PiperOrigin-RevId: 238522262
Change-Id: I1a33470f1c9f8e5e83da44e82bdb2969fa9ed8ea
diff --git a/quic/test_tools/quic_test_utils.h b/quic/test_tools/quic_test_utils.h
index 715fbf3..5c70c64 100644
--- a/quic/test_tools/quic_test_utils.h
+++ b/quic/test_tools/quic_test_utils.h
@@ -42,6 +42,10 @@
// given number, such as an index.
QuicConnectionId TestConnectionId(uint64_t connection_number);
+// A generic predictable connection ID suited for testing, generated from a
+// given number, such as an index. Guaranteed to be 9 bytes long.
+QuicConnectionId TestConnectionIdNineBytesLong(uint64_t connection_number);
+
// Extracts the connection number passed to TestConnectionId().
uint64_t TestConnectionIdToUInt64(QuicConnectionId connection_id);
