// Unit tests for context7_bridge.ts pure helpers (slice 2 backfill).
// Run: bun test mcp-server/context7_bridge.test.ts
//
// The HTTP-bound functions (resolveLibraryId, fetchDocsText,
// getCurrent) need network access and are exercised by the hybrid
// fixture on the auditor side — not re-tested here to avoid
// duplicating what's already integration-covered. This file only
// exercises the pure, deterministic helpers.

import { test, expect } from "bun:test";
import { normalizeTool, hashContent } from "./context7_bridge.ts";

test("normalizeTool lowercases + trims", () => {
  expect(normalizeTool("Docker")).toBe("docker");
  expect(normalizeTool("  TERRAFORM  ")).toBe("terraform");
  expect(normalizeTool("Next.JS")).toBe("next.js");
});

test("normalizeTool preserves internal chars + dashes", () => {
  expect(normalizeTool("react-dom")).toBe("react-dom");
  expect(normalizeTool("@anthropic/sdk")).toBe("@anthropic/sdk");
});

test("hashContent is deterministic", () => {
  const a = hashContent("hello world");
  const b = hashContent("hello world");
  expect(a).toBe(b);
});

test("hashContent is sensitive to single-char change", () => {
  const a = hashContent("docker run -it ubuntu bash");
  const b = hashContent("docker run -it ubuntu bashh"); // extra h
  expect(a).not.toBe(b);
});

test("hashContent returns 16 hex chars", () => {
  const h = hashContent("any input");
  expect(h).toMatch(/^[0-9a-f]{16}$/);
});

test("hashContent differs for empty vs whitespace", () => {
  const a = hashContent("");
  const b = hashContent(" ");
  expect(a).not.toBe(b);
});