fix(ui): отклонять повреждённые данные live-потока

tests/e2e/traffic-flow.spec.ts

@@ -1,7 +1,7 @@
 import { test, expect, type Page } from '@playwright/test'
 
 async function setup(page: Page) {
-  const control = { hold: '', fail: false, failList: false, release: () => {} }
+  const control = { hold: '', fail: false, failList: false, invalidSample: undefined as unknown, mergeSample: false, release: () => {} }
   const gate = new Promise<void>(resolve => { control.release = resolve })
   const card = { id: '1', name: 'Экспортёр тест', subtitle: '', site: 'TEST', country: 'RU', status: 'online', rxNow: 2, txNow: 3, sessions: 1, rxSeries: [1, 2], txSeries: [2, 3], bytes: 200 }
   const data = { bpsNow: 1000000, bytes: 200, packets: 2, conversations: 1, uniqueSrc: 1, uniqueDst: 1, topProto: 'TCP', rxSeries: [1], txSeries: [2], applications: [], protocols: [], sources: [], destinations: [], interfaces: [], conversationsList: [], ifaces: [], live: false }
@@ -14,7 +14,7 @@ async function setup(page: Page) {
       if (control.fail) return route.fulfill({ status: 500, json: { error: 'Срез временно недоступен' } })
       return route.fulfill({ json: { ...data, topCategory: 'Категория ' + range } })
     }
-    if (path === '/api/traffic/flow/live') return route.fulfill({ contentType: 'text/event-stream', body: 'event: sample\ndata: ' + JSON.stringify({ ...data, live: true }) + '\n\n' })
+    if (path === '/api/traffic/flow/live') return route.fulfill({ contentType: 'text/event-stream', body: 'event: sample\ndata: ' + JSON.stringify({ ...data, live: true }) + '\n\n' + (control.invalidSample === undefined ? '' : 'event: sample\ndata: ' + JSON.stringify(control.mergeSample ? { ...data, ...(control.invalidSample as object) } : control.invalidSample) + '\n\n') })
     if (path === '/api/traffic/flow/exporters' && control.failList) return route.fulfill({ status: 403, json: { error: 'Нет доступа к экспортёрам' } })
     const json = path === '/api/auth/config' ? { required: false }
       : path === '/api/traffic/flow/exporters' ? { exporters: [card] }
@@ -123,3 +123,25 @@ for (const width of [320, 390, 1440]) {
     await page.screenshot({ path: `test-results/flow-monthly-${width}.png`, fullPage: true })
   })
 }
+
+
+for (const [name, invalid, merge] of [
+  ['неполный объект', { uniqueSrc: 1, destinations: [] }, false],
+  ['отрицательная скорость', { bpsNow: -1 }, true],
+  ['null', null, false],
+  ['неверная строка таблицы', { destinations: [null] }, true],
+  ['отрицательная серия', { rxSeries: [-1] }, true],
+] as const) {
+  test('Flow: повреждённый sample — ' + name, async ({ page }) => {
+    const control = await setup(page)
+    await page.getByRole("button", { name: "15м", exact: true }).click()
+    await expect(page.getByText("Категория 15m", { exact: true }).filter({ visible: true })).toBeVisible()
+    control.invalidSample = invalid
+    control.mergeSample = merge
+    await page.getByRole('button', { name: '5м', exact: true }).click()
+    await expect(page.getByText('Некорректные данные live-потока', { exact: true })).toBeVisible()
+    await expect(page.getByText('Последние данные · live недоступен', { exact: true }).filter({ visible: true })).toHaveCount(2)
+    await expect(page.getByLabel('Скорость потоков')).toContainText('1.00 Мбит/с')
+    await expect(page.getByText('live', { exact: true })).toHaveCount(0)
+  })
+}