fix(ui): показывать неизвестные поля сертификатов явно

components/data-grids/certificate-observed-view.test.tsx

@@ -0,0 +1,40 @@
+import assert from "node:assert/strict"
+import { test } from "node:test"
+import { renderToStaticMarkup } from "react-dom/server"
+import type { CertificateObserved } from "@mmapp/contracts/certificates"
+import { CertificateExpandedDetail } from "./certificate-expanded-detail"
+import { CertDaysCell } from "./certificate-days-cell"
+
+const cert: CertificateObserved = {
+  id: "1:*A", rosId: "*A", name: "unknown-cert", serverId: "1", commonName: "test.example",
+  sans: [], issuedBy: "—", validFrom: null, validUntil: null, rawValidFrom: null,
+  rawValidUntil: null, daysLeft: null, keySize: null, trusted: null, status: "unknown", usage: [],
+}
+
+test("unknown observed fields are explicit and do not become zero or untrusted", () => {
+  const details = renderToStaticMarkup(<CertificateExpandedDetail cert={cert} />)
+  const days = renderToStaticMarkup(<CertDaysCell cert={cert} />)
+  assert.match(details, /Неизвестен/)
+  assert.match(details, /Дата неизвестна/)
+  assert.match(details, /Неизвестно/)
+  assert.ok(!details.includes("0 бит"))
+  assert.ok(!details.includes("Нет (не доверенный)"))
+  assert.match(days, /Срок неизвестен/)
+  assert.match(days, /Дата окончания неизвестна/)
+  assert.doesNotMatch(days, /0д осталось/)
+})
+
+test("known false trust and zero remaining days are preserved", () => {
+  const known = { ...cert, trusted: false, keySize: 2048, daysLeft: 0, validUntil: "2026-10-01T00:00:00Z" }
+  const details = renderToStaticMarkup(<CertificateExpandedDetail cert={known} />)
+  assert.ok(details.includes("Нет (не доверенный)"))
+  assert.match(details, /2048 бит/)
+  const days = renderToStaticMarkup(<CertDaysCell cert={known} />)
+  assert.match(days, /0д осталось/)
+  assert.match(days, /2026-10-01T00:00:00Z/)
+})
+
+test("expired and positive observed days stay distinct", () => {
+  assert.match(renderToStaticMarkup(<CertDaysCell cert={{ ...cert, daysLeft: -3 }} />), /Истёк 3д назад/)
+  assert.match(renderToStaticMarkup(<CertDaysCell cert={{ ...cert, daysLeft: 40 }} />), /40д осталось/)
+})