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`hot-files.test.ts`

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74d8c4dClaude	1	/**
	2	* Tests for src/lib/hot-files.ts and src/routes/hot-files.tsx.
	3	*/
	4
	5	import { describe, test, expect } from "bun:test";
	6
	7	// ─── Pure helper tests ────────────────────────────────────────────────────────
	8
	9	// Risk classification logic — mirrors hot-files.ts without importing the async fn.
	10	const HIGH_RISK_PATTERNS = ["auth", "security", "schema", "db/", "middleware", "routes/git", "crypto"];
	11	const MEDIUM_RISK_PATTERNS = ["route", "api", "lib/", ".sql"];
	12
	13	function classifyRisk(filePath: string): "high" \| "medium" \| "low" {
	14	const lower = filePath.toLowerCase();
	15	if (HIGH_RISK_PATTERNS.some((p) => lower.includes(p))) return "high";
	16	if (MEDIUM_RISK_PATTERNS.some((p) => lower.includes(p))) return "medium";
	17	return "low";
	18	}
	19
	20	describe("hot-files risk classification", () => {
	21	test("auth file → high", () => expect(classifyRisk("src/lib/auth.ts")).toBe("high"));
	22	test("middleware file → high", () => expect(classifyRisk("src/middleware/rate-limit.ts")).toBe("high"));
	23	test("schema file → high", () => expect(classifyRisk("src/db/schema.ts")).toBe("high"));
	24	test("route file → medium", () => expect(classifyRisk("src/routes/issues.tsx")).toBe("medium"));
	25	test("sql migration → medium", () => expect(classifyRisk("drizzle/0001.sql")).toBe("medium"));
	26	test("api lib → medium", () => expect(classifyRisk("src/lib/api-helper.ts")).toBe("medium"));
	27	test("test file → low", () => expect(classifyRisk("src/__tests__/orgs.test.ts")).toBe("low"));
	28	test("readme → low", () => expect(classifyRisk("README.md")).toBe("low"));
	29	test("case-insensitive: AUTH.TS → high", () => expect(classifyRisk("AUTH.TS")).toBe("high"));
	30	});
	31
	32	// Extension extraction
	33	function extractExt(p: string): string {
	34	const dot = p.lastIndexOf(".");
	35	if (dot === -1 \|\| dot === p.length - 1) return "";
	36	return p.slice(dot + 1);
	37	}
	38
	39	describe("hot-files extension extraction", () => {
	40	test(".ts extension", () => expect(extractExt("src/lib/foo.ts")).toBe("ts"));
	41	test(".tsx extension", () => expect(extractExt("src/routes/bar.tsx")).toBe("tsx"));
	42	test("no extension → empty string", () => expect(extractExt("Makefile")).toBe(""));
	43	test("trailing dot → empty string", () => expect(extractExt("file.")).toBe(""));
	44	test(".sql extension", () => expect(extractExt("drizzle/0001.sql")).toBe("sql"));
	45	});
	46
	47	// Path truncation
	48	function truncatePath(path: string, maxChars = 40): string {
	49	if (path.length <= maxChars) return path;
	50	return "…" + path.slice(path.length - maxChars);
	51	}
	52
	53	describe("hot-files path truncation", () => {
	54	test("short path unchanged", () => expect(truncatePath("src/foo.ts")).toBe("src/foo.ts"));
	55	test("long path truncated with ellipsis", () => {
	56	const long = "src/routes/very/deeply/nested/path/component/file.tsx";
	57	const result = truncatePath(long, 40);
	58	expect(result.startsWith("…")).toBe(true);
	59	expect(result.length).toBe(41); // 1 for "…" + 40
	60	});
	61	test("exactly maxChars is unchanged", () => {
	62	const exact = "a".repeat(40);
	63	expect(truncatePath(exact, 40)).toBe(exact);
	64	});
	65	});
	66
	67	// ─── Route smoke test ─────────────────────────────────────────────────────────
	68
	69	import app from "../app";
	70
	71	const HAS_DB = Boolean(process.env.DATABASE_URL);
	72
	73	describe("GET /:owner/:repo/insights/hotfiles", () => {
	74	test.skipIf(!HAS_DB)("non-existent repo returns 404", async () => {
	75	const res = await app.request("/__nx_owner__/__nx_repo__/insights/hotfiles");
	76	expect(res.status).toBe(404);
	77	});
	78	});