fix(uptime): сохранить неизвестную скорость и проверить подтверждение теста

lib/speed-run-response.test.ts

@@ -0,0 +1,17 @@
+import { test } from "node:test"
+import assert from "node:assert/strict"
+import { parseSpeedRunResponse } from "./speed-run-response"
+const receipt = (tx: unknown, rx: unknown, runId = "run-1") => ({ ok: true, result: { runId, txAvgMbps: tx, rxAvgMbps: rx } })
+test("nullable result and measured zero stay distinct", () => {
+  assert.equal(parseSpeedRunResponse(receipt(null, 0), "run-1").txAvgMbps, null)
+  assert.equal(parseSpeedRunResponse(receipt(null, 0), "run-1").rxAvgMbps, 0)
+  assert.equal(parseSpeedRunResponse(receipt(0.25, 10), "run-1").txAvgMbps, 0.25)
+})
+test("invalid or foreign receipts cannot publish measurements", () => {
+  for (const raw of [receipt(-1, 0), receipt("10", 0), receipt(NaN, 0), receipt(Infinity, 0), receipt(undefined, 0), receipt(10, 0, "other"), { result: receipt(10, 0).result }, { ok: false, result: receipt(10, 0).result }, null]) {
+    assert.throws(() => parseSpeedRunResponse(raw, "run-1"), /Результат операции неизвестен/)
+  }
+})
+test("invalid post-test ping rejects the whole receipt", () => {
+  assert.throws(() => parseSpeedRunResponse({ ...receipt(10, 0), result: { ...receipt(10, 0).result, afterBtPing: { rttMs: null, lossPct: 101, error: null } } }, "run-1"))
+})