moving

packages/hive-mind-hooks-codex/tests/uninstall.test.ts

@@ -0,0 +1,118 @@
+import { describe, expect, it, afterEach } from 'vitest';
+import { createHash } from 'node:crypto';
+import { mkdtemp, mkdir, readFile, writeFile, rm } from 'node:fs/promises';
+import { existsSync } from 'node:fs';
+import { tmpdir } from 'node:os';
+import { join, resolve } from 'node:path';
+import { install } from '../src/install.js';
+import { uninstall } from '../src/uninstall.js';
+
+interface TestEnv {
+  home: string;
+  hooksDir: string;
+  configPath: string;
+  pointerPath: string;
+}
+
+async function bootstrap(initial: Record<string, unknown> | undefined): Promise<TestEnv> {
+  const home = await mkdtemp(join(tmpdir(), 'hmcdx-uninstall-'));
+  const codexDir = join(home, '.codex');
+  await mkdir(codexDir, { recursive: true });
+  const configPath = join(codexDir, 'hooks.json');
+  if (initial !== undefined) {
+    await writeFile(configPath, JSON.stringify(initial, null, 2) + '\n', 'utf-8');
+  }
+  const hooksDir = resolve(home, 'fake-dist', 'hooks');
+  await mkdir(hooksDir, { recursive: true });
+  return { home, hooksDir, configPath, pointerPath: join(codexDir, 'hive-mind-install.json') };
+}
+
+function sha256(s: string): string {
+  return createHash('sha256').update(s, 'utf-8').digest('hex');
+}
+
+describe('uninstall (codex)', () => {
+  let env: TestEnv;
+
+  afterEach(async () => {
+    if (env) await rm(env.home, { recursive: true, force: true });
+  });
+
+  it('throws when no pointer file exists', async () => {
+    env = await bootstrap({ hooks: {} });
+    await expect(uninstall({ home: env.home, hooksDir: env.hooksDir }))
+      .rejects.toThrow(/pointer/);
+  });
+
+  it('throws when the pointer is malformed', async () => {
+    env = await bootstrap({ hooks: {} });
+    await writeFile(env.pointerPath, '{}', 'utf-8');
+    await expect(uninstall({ home: env.home, hooksDir: env.hooksDir }))
+      .rejects.toThrow(/malformed/);
+  });
+
+  // ── created_by_us=false: byte-identical restore (§7.3 invariant 2) ─────
+
+  it('install + uninstall round-trip is SHA-256 identical to pre-install state', async () => {
+    const initial = {
+      schemaVersion: 1,
+      hooks: {
+        SessionStart: [
+          { matcher: 'startup', hooks: [{ type: 'command', command: 'node /existing/ctx.js' }] },
+        ],
+        PreCompact: [
+          { hooks: [{ type: 'command', command: 'node /existing/pre-compact.js', timeout: 10 }] },
+        ],
+      },
+    };
+    env = await bootstrap(initial);
+    const preInstall = await readFile(env.configPath, 'utf-8');
+    const preHash = sha256(preInstall);
+
+    await install({ home: env.home, hooksDir: env.hooksDir });
+    const afterInstall = await readFile(env.configPath, 'utf-8');
+    expect(sha256(afterInstall)).not.toBe(preHash); // install actually mutated
+
+    const u = await uninstall({ home: env.home, hooksDir: env.hooksDir });
+    expect(u.createdRemoved).toBe(false);
+    const afterUninstall = await readFile(env.configPath, 'utf-8');
+    expect(sha256(afterUninstall)).toBe(preHash);
+    expect(afterUninstall).toBe(preInstall);
+  });
+
+  it('removes backup + pointer by default after a restore', async () => {
+    env = await bootstrap({ hooks: {} });
+    const result = await install({ home: env.home, hooksDir: env.hooksDir });
+    expect(existsSync(result.backupPath as string)).toBe(true);
+    const u = await uninstall({ home: env.home, hooksDir: env.hooksDir });
+    expect(u.backupRemoved).toBe(true);
+    expect(existsSync(result.backupPath as string)).toBe(false);
+    expect(existsSync(result.pointerPath)).toBe(false);
+  });
+
+  it('keeps the backup when cleanupBackup=false', async () => {
+    env = await bootstrap({ hooks: {} });
+    const result = await install({ home: env.home, hooksDir: env.hooksDir });
+    const u = await uninstall({ home: env.home, hooksDir: env.hooksDir, cleanupBackup: false });
+    expect(u.backupRemoved).toBe(false);
+    expect(existsSync(result.backupPath as string)).toBe(true);
+  });
+
+  // ── created_by_us=true: delete-if-created, no orphan (§7.3 invariant 2) ─
+
+  it('deletes the hooks.json we created and leaves NO orphan (absent → install → uninstall)', async () => {
+    env = await bootstrap(undefined);
+    expect(existsSync(env.configPath)).toBe(false);
+
+    const result = await install({ home: env.home, hooksDir: env.hooksDir });
+    expect(result.createdByUs).toBe(true);
+    expect(existsSync(env.configPath)).toBe(true);
+
+    const u = await uninstall({ home: env.home, hooksDir: env.hooksDir });
+    expect(u.createdRemoved).toBe(true);
+    expect(u.restoredFrom).toBeNull();
+    // No orphaned config, no leftover backup, no leftover pointer.
+    expect(existsSync(env.configPath)).toBe(false);
+    expect(existsSync(env.pointerPath)).toBe(false);
+  });
+});