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2026-07-13 12:58:18 +08:00

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TypeScript

/**
* Sync contract: validate-parity.ts's BASELINE_DEMO_COUNT constant and
* fail-baseline.json's `baselineDemoCount` field are two declarations of
* the same number — the per-package e2e-spec-count floor. The workflow
* .github/workflows/showcase_validate.yml reads the JSON; validate-parity.ts
* uses the TS constant as its default. A divergence means the validator
* and the CI gate disagree silently, so we lock them together here.
*
* Prior to this test the contract was enforced only by a comment ("keep
* in sync"), which is trivially violated without any CI signal. R29-7
* finding #4 / R29-5.
*/
import { describe, it, expect } from "vitest";
import fs from "fs";
import path from "path";
import { fileURLToPath } from "url";
import { BASELINE_DEMO_COUNT } from "../validate-parity.js";
const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
describe("baselineDemoCount sync contract", () => {
it("fail-baseline.json `baselineDemoCount` equals validate-parity.ts BASELINE_DEMO_COUNT", () => {
const baselinePath = path.resolve(__dirname, "..", "fail-baseline.json");
const raw = fs.readFileSync(baselinePath, "utf8");
const parsed = JSON.parse(raw) as { baselineDemoCount?: unknown };
// Explicit type guard rather than a blind cast — if the field ever
// disappears or its type flips, we want a clear failure, not
// `undefined === <n>` silently passing as false.
expect(typeof parsed.baselineDemoCount).toBe("number");
expect(Number.isInteger(parsed.baselineDemoCount)).toBe(true);
expect(parsed.baselineDemoCount).toBe(BASELINE_DEMO_COUNT);
});
});