AAA
a03b013594
Use fresh RTCP loss reports for sender diagnostics and include existing Viewer packet loss, RTT, and jitter in sanitized route logs without changing routing.
113 lines
3.2 KiB
TypeScript
113 lines
3.2 KiB
TypeScript
import { describe, expect, it } from "vitest";
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import {
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collectConnectionMetricsFromReport,
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createStatsAccumulator,
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} from "../src/client/webrtc/stats";
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import { packetLossPercentFromDeltas } from "../src/shared/packet-loss";
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function senderReport(
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mediaTimestamp: number,
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lossSourceId: string,
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lossTimestamp: number,
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fractionLost: number,
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packetsLost: number,
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): RTCStatsReport {
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return new Map<string, unknown>([
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[
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"video",
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{
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id: "video",
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type: "outbound-rtp",
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timestamp: mediaTimestamp,
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kind: "video",
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ssrc: 101,
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remoteId: lossSourceId,
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packetsSent: mediaTimestamp,
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bytesSent: mediaTimestamp,
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framesEncoded: mediaTimestamp / 100,
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},
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],
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[
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lossSourceId,
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{
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id: lossSourceId,
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type: "remote-inbound-rtp",
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timestamp: lossTimestamp,
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kind: "video",
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ssrc: 101,
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packetsLost,
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fractionLost,
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roundTripTime: 0.02,
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},
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],
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]) as unknown as RTCStatsReport;
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}
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describe("packet loss evidence", () => {
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it("uses each fresh sender RTCP fraction exactly once", () => {
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const accumulator = createStatsAccumulator();
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const first = collectConnectionMetricsFromReport(
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senderReport(1_000, "remote-a", 900, 0.25, 4),
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"send",
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accumulator,
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);
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const repeatedReport = collectConnectionMetricsFromReport(
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senderReport(3_000, "remote-a", 900, 0.25, 4),
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"send",
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accumulator,
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);
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const freshReport = collectConnectionMetricsFromReport(
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senderReport(5_000, "remote-a", 4_900, 0.125, 6),
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"send",
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accumulator,
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);
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expect(first.packetLossPercent).toBeNull();
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expect(repeatedReport.packetLossPercent).toBeNull();
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expect(freshReport.packetLossPercent).toBe(12.5);
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});
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it("rebaselines sender loss on source or report-time changes", () => {
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const accumulator = createStatsAccumulator();
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collectConnectionMetricsFromReport(
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senderReport(1_000, "remote-a", 900, 0.1, 2),
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"send",
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accumulator,
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);
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const sourceChanged = collectConnectionMetricsFromReport(
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senderReport(3_000, "remote-b", 2_900, 0.2, 3),
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"send",
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accumulator,
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);
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const stableSource = collectConnectionMetricsFromReport(
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senderReport(5_000, "remote-b", 4_900, 0.2, 4),
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"send",
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accumulator,
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);
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const timestampRollback = collectConnectionMetricsFromReport(
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senderReport(7_000, "remote-b", 4_000, 0.5, 1),
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"send",
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accumulator,
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);
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const invalidFraction = collectConnectionMetricsFromReport(
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senderReport(9_000, "remote-b", 8_900, 1.1, 5),
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"send",
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accumulator,
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);
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expect(sourceChanged.packetLossPercent).toBeNull();
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expect(stableSource.packetLossPercent).toBe(20);
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expect(timestampRollback.packetLossPercent).toBeNull();
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expect(invalidFraction.packetLossPercent).toBeNull();
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});
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it("keeps receive-side delta validation unchanged", () => {
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expect(packetLossPercentFromDeltas(90, 10)).toBe(10);
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expect(packetLossPercentFromDeltas(0, 0)).toBeNull();
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expect(packetLossPercentFromDeltas(null, 1)).toBeNull();
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expect(packetLossPercentFromDeltas(10, -1)).toBeNull();
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});
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});
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