snapshot of https://github.com/livekit/livekit.git @ 08c5433449c106943231037d0b892895f6e92d3b (2026-09-15)

pkg/rtc/utils_test.go

@@ -0,0 +1,75 @@
+// Copyright 2023 LiveKit, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package rtc
+
+import (
+	"math/rand/v2"
+	"strings"
+	"testing"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/require"
+	"google.golang.org/protobuf/proto"
+
+	"github.com/livekit/protocol/livekit"
+	"github.com/livekit/protocol/utils/guid"
+)
+
+func TestPackStreamId(t *testing.T) {
+	packed := "PA_123abc|uuid-id"
+	pID, trackID := UnpackStreamID(packed)
+	require.Equal(t, livekit.ParticipantID("PA_123abc"), pID)
+	require.Equal(t, livekit.TrackID("uuid-id"), trackID)
+
+	require.Equal(t, packed, PackStreamID(pID, trackID))
+}
+
+func TestPackDataTrackLabel(t *testing.T) {
+	pID := livekit.ParticipantID("PA_123abc")
+	trackID := livekit.TrackID("TR_b3da25")
+	label := "trackLabel"
+	packed := "PA_123abc|TR_b3da25|trackLabel"
+	require.Equal(t, packed, PackDataTrackLabel(pID, trackID, label))
+
+	p, tr, l := UnpackDataTrackLabel(packed)
+	require.Equal(t, pID, p)
+	require.Equal(t, trackID, tr)
+	require.Equal(t, label, l)
+}
+
+func TestChunkProtoBatch(t *testing.T) {
+	rng := rand.New(rand.NewPCG(1, 2))
+	var updates []*livekit.ParticipantInfo
+	for range 32 {
+		updates = append(updates, &livekit.ParticipantInfo{
+			Sid:      guid.New(guid.ParticipantPrefix),
+			Identity: uuid.NewString(),
+			Metadata: strings.Repeat("x", rng.IntN(128*1024)),
+		})
+	}
+
+	target := 64 * 1024
+	batches := ChunkProtoBatch(updates, target)
+	var count int
+	for _, b := range batches {
+		var sum int
+		for _, m := range b {
+			sum += proto.Size(m)
+			count++
+		}
+		require.True(t, sum < target || len(b) == 1, "batch size exceeds target")
+	}
+	require.Equal(t, len(updates), count)
+}