import { describe, expect, it } from "vitest"; import { parseOpenApiDocument } from "./document"; describe("openapi-document", () => {  it("parses JSON OpenAPI document text", () => {    const parsed = parseOpenApiDocument(      JSON.stringify({ openapi: "3.1.0", paths: {} }),    ) as { openapi: string };     expect(parsed.openapi).toBe("3.1.0");  });   it("parses YAML OpenAPI document text", () => {    const parsed = parseOpenApiDocument([      "openapi: 3.1.0",      "paths:",      "  /health:",      "    get:",      "      operationId: health",      "      responses:",      "        '200':",      "          description: ok",    ].join("\n")) as { openapi: string };     expect(parsed.openapi).toBe("3.1.0");  });   it("fails for empty document", () => {    expect(() => parseOpenApiDocument("   ")).toThrowError(/OpenAPI document is empty/);  });});