gitmost/apps/server/test/integration/ai-mcp-server-repo.int-spec.ts

import { Kysely, sql } from 'kysely';
import { randomUUID } from 'node:crypto';
import { AiMcpServerRepo } from '@docmost/db/repos/ai-chat/ai-mcp-server.repo';
import { getTestDb, destroyTestDb, createWorkspace } from './db';

/**
 * AiMcpServerRepo `tool_allowlist` jsonb round-trip (PR #172 / issue #173 §3).
 *
 * The fix under test is a DB round-trip, so a unit test cannot observe it: the
 * write must land as a real jsonb ARRAY (not a double-encoded string scalar),
 * and the read must repair any legacy string-scalar rows. The read-side
 * `parseToolAllowlist` MASKS a write regression (it parses the string back), so
 * without this integration check, reverting `::text::jsonb` to `::jsonb` would
 * keep every unit test green while silently corrupting the column again.
 */
describe('AiMcpServerRepo tool_allowlist jsonb round-trip [integration]', () => {
  let db: Kysely<any>;
  let repo: AiMcpServerRepo;
  let ws: string;

  beforeAll(async () => {
    db = getTestDb();
    repo = new AiMcpServerRepo(db as any);
    ws = (await createWorkspace(db)).id;
  });

  afterAll(async () => {
    await destroyTestDb();
  });

  const jsonbTypeof = async (id: string): Promise<string | null> => {
    const res = await sql<{ t: string | null }>`
      SELECT jsonb_typeof(tool_allowlist) AS t
      FROM ai_mcp_servers WHERE id = ${id}
    `.execute(db);
    return res.rows[0]?.t ?? null;
  };

  it('insert stores the allowlist as a jsonb ARRAY (not a string scalar)', async () => {
    const row = await repo.insert({
      workspaceId: ws,
      name: `srv-${randomUUID()}`,
      transport: 'http',
      url: 'https://example.com/mcp',
      toolAllowlist: ['search', 'crawl'],
    });

    // The column holds a real jsonb array — the whole point of ::text::jsonb.
    expect(await jsonbTypeof(row.id)).toBe('array');

    // And the read returns a genuine string[], not a JSON string.
    const found = await repo.findById(row.id, ws);
    expect(found?.toolAllowlist).toEqual(['search', 'crawl']);
    expect(Array.isArray(found?.toolAllowlist)).toBe(true);
  });

  it('an empty allowlist is normalized to null (no restriction), not []', async () => {
    const row = await repo.insert({
      workspaceId: ws,
      name: `srv-${randomUUID()}`,
      transport: 'http',
      url: 'https://example.com/mcp',
      toolAllowlist: [],
    });
    // The column is SQL NULL, so jsonb_typeof returns SQL NULL (JS null).
    expect(await jsonbTypeof(row.id)).toBeNull();
    expect((await repo.findById(row.id, ws))?.toolAllowlist).toBeNull();
  });

  it('repairs a legacy double-encoded (string scalar) row on read (self-heal)', async () => {
    // Seed a row whose tool_allowlist is a jsonb STRING SCALAR holding the JSON
    // text — exactly what the old `::jsonb` double-encoding produced.
    const id = randomUUID();
    await sql`
      INSERT INTO ai_mcp_servers (id, workspace_id, name, transport, url, tool_allowlist)
      VALUES (
        ${id}, ${ws}, ${`srv-${id}`}, 'http', 'https://example.com/mcp',
        to_jsonb(${'["alpha","beta"]'}::text)
      )
    `.execute(db);

    // Sanity: the seeded column really IS the corrupt string-scalar shape.
    expect(await jsonbTypeof(id)).toBe('string');

    // The repo read heals it back to a real string[].
    expect((await repo.findById(id, ws))?.toolAllowlist).toEqual([
      'alpha',
      'beta',
    ]);
    const enabled = await repo.listEnabled(ws);
    const healed = enabled.find((r) => r.id === id);
    expect(healed?.toolAllowlist).toEqual(['alpha', 'beta']);
  });
});