gendesign/frontend/src/components/site-finder/__tests__/GateVerdictBanner.test.tsx

/**
 * B2 (#2445) — COLOR_BY_LABEL[verdict.verdict_label] had no fallback: an
 * unrecognized verdict_label (schema drift / partial deploy — backend ships a
 * new enum value before frontend redeploys) made the lookup `undefined`, and
 * the next `.Icon`/`.bg` access threw, crashing the whole banner render.
 *
 * These tests pin the defensive fallback (mirrors ParcelDrawer's
 * `STATUS_COLORS[...] ?? '#73767E'` pattern): an unknown verdict_label must
 * render a neutral style, not throw.
 */
import { render, screen } from "@testing-library/react";
import { describe, expect, it } from "vitest";

import { GateVerdictBanner } from "../GateVerdictBanner";
import type { GateVerdict, GateVerdictLabel } from "@/types/site-finder";

function makeVerdict(overrides: Partial<GateVerdict> = {}): GateVerdict {
  return {
    can_build_mkd: true,
    verdict_label: "Можно",
    blockers: [],
    warnings: [],
    checks_performed: [],
    source: "nspd_dump",
    ...overrides,
  };
}

describe("GateVerdictBanner", () => {
  it("renders known verdict_label without throwing", () => {
    render(
      <GateVerdictBanner verdict={makeVerdict({ verdict_label: "Можно" })} />,
    );
    expect(screen.getByText(/МКД: Можно/)).toBeInTheDocument();
  });

  it("unrecognized verdict_label renders a neutral fallback instead of throwing", () => {
    const drifted = makeVerdict({
      // Simulates schema drift: backend sends a value outside the closed
      // GateVerdictLabel union (cast through unknown, not `any`).
      verdict_label: "НовыйВердикт" as unknown as GateVerdictLabel,
    });
    expect(() => render(<GateVerdictBanner verdict={drifted} />)).not.toThrow();
    expect(screen.getByText(/МКД: НовыйВердикт/)).toBeInTheDocument();
  });
});