test: add page hierarchy cycle integration harness

apps/server/test/docker-compose.integration.yml

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+name: docmost-cycle-test
+
+services:
+  postgres:
+    image: postgres:18
+    environment:
+      POSTGRES_DB: docmost_cycle_test
+      POSTGRES_USER: docmost
+      POSTGRES_PASSWORD: docmost
+    ports:
+      - '127.0.0.1:55432:5432'
+    tmpfs:
+      - /var/lib/postgresql
+    healthcheck:
+      test: ['CMD-SHELL', 'pg_isready -U docmost -d docmost_cycle_test']
+      interval: 2s
+      timeout: 2s
+      retries: 15

apps/server/test/jest-integration.json

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+{
+  "moduleFileExtensions": ["js", "json", "ts"],
+  "rootDir": ".",
+  "testEnvironment": "node",
+  "testRegex": ".*\\.integration-spec\\.ts$",
+  "transform": {
+    "happy-dom.+\\.js$": [
+      "babel-jest",
+      {
+        "presets": [["@babel/preset-env", { "targets": { "node": "current" } }]]
+      }
+    ],
+    "^.+\\.(t|j)s$": "ts-jest"
+  },
+  "transformIgnorePatterns": [
+    "/node_modules/(?!(\\.pnpm/)?(nanoid|uuid|image-dimensions|marked|happy-dom)(@|/))"
+  ],
+  "moduleNameMapper": {
+    "^@docmost/db/(.*)$": "<rootDir>/../src/database/$1",
+    "^@docmost/transactional/(.*)$": "<rootDir>/../src/integrations/transactional/$1",
+    "^@docmost/ee/(.*)$": "<rootDir>/../src/ee/$1",
+    "^src/(.*)$": "<rootDir>/../src/$1",
+    "^@docmost/base-formula/server$": "<rootDir>/../../../packages/base-formula/src/index.server.ts",
+    "^@docmost/base-formula/client$": "<rootDir>/../../../packages/base-formula/src/index.client.ts"
+  }
+}

apps/server/test/page-hierarchy-cycle.integration-spec.ts

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+import { db } from './support/database';
+import { seedAcyclicPageChain } from './support/page-hierarchy-fixtures';
+
+describe('page hierarchy cycle integration harness', () => {
+  it('inserts and reads an acyclic page chain through the test Kysely instance', async () => {
+    const { root, child, grandchild } = await seedAcyclicPageChain();
+
+    const pages = await db
+      .selectFrom('pages')
+      .select(['id', 'parentPageId', 'title'])
+      .where('id', 'in', [root.id, child.id, grandchild.id])
+      .orderBy('title')
+      .execute();
+
+    expect(pages).toEqual([
+      { id: child.id, parentPageId: root.id, title: 'Child' },
+      { id: grandchild.id, parentPageId: child.id, title: 'Grandchild' },
+      { id: root.id, parentPageId: null, title: 'Root' },
+    ]);
+  });
+});

apps/server/test/support/database.ts

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+import { CamelCasePlugin, Kysely, sql } from 'kysely';
+import { PostgresJSDialect } from 'kysely-postgres-js';
+import * as postgres from 'postgres';
+import { DbInterface } from '../../src/database/types/db.interface';
+
+const databaseUrl = process.env.TEST_DATABASE_URL;
+
+if (!databaseUrl) {
+  throw new Error('TEST_DATABASE_URL must be set for integration tests');
+}
+
+const postgresPool = postgres(databaseUrl, { max: 1, onnotice: () => {} });
+
+export const db = new Kysely<DbInterface>({
+  dialect: new PostgresJSDialect({ postgres: postgresPool }),
+  plugins: [new CamelCasePlugin()],
+});
+
+export async function withStatementTimeout<T>(
+  callback: (connection: Kysely<DbInterface>) => Promise<T>,
+): Promise<T> {
+  return db.connection().execute(async (connection) => {
+    await sql`SET statement_timeout = '500ms'`.execute(connection);
+
+    try {
+      return await callback(connection);
+    } finally {
+      await sql`SET statement_timeout = DEFAULT`.execute(connection);
+    }
+  });
+}
+
+export async function truncateFixtureTables(): Promise<void> {
+  await sql`TRUNCATE TABLE pages, spaces, workspaces CASCADE`.execute(db);
+}
+
+afterEach(async () => {
+  await truncateFixtureTables();
+});
+
+afterAll(async () => {
+  await postgresPool.end();
+});

apps/server/test/support/page-hierarchy-fixtures.ts

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+import { randomUUID } from 'node:crypto';
+import { sql } from 'kysely';
+import { db } from './database';
+
+export type PageFixture = {
+  id: string;
+  parentPageId: string | null;
+  title: string;
+};
+
+type HierarchyContext = {
+  workspaceId: string;
+  spaceId: string;
+};
+
+async function seedWorkspaceAndSpace(): Promise<HierarchyContext> {
+  const workspace = await db
+    .insertInto('workspaces')
+    .values({
+      hostname: `cycle-test-${randomUUID()}`,
+      name: 'Page hierarchy integration workspace',
+    })
+    .returning('id')
+    .executeTakeFirstOrThrow();
+
+  const space = await db
+    .insertInto('spaces')
+    .values({
+      name: 'Page hierarchy integration space',
+      slug: `cycle-test-${randomUUID()}`,
+      workspaceId: workspace.id,
+    })
+    .returning('id')
+    .executeTakeFirstOrThrow();
+
+  return { spaceId: space.id, workspaceId: workspace.id };
+}
+
+async function insertPage(
+  context: HierarchyContext,
+  title: string,
+  parentPageId: string | null = null,
+): Promise<PageFixture> {
+  const page = await db
+    .insertInto('pages')
+    .values({
+      parentPageId,
+      slugId: randomUUID(),
+      spaceId: context.spaceId,
+      title,
+      workspaceId: context.workspaceId,
+    })
+    .returning(['id', 'parentPageId', 'title'])
+    .executeTakeFirstOrThrow();
+
+  return { id: page.id, parentPageId: page.parentPageId, title };
+}
+
+export async function seedAcyclicPageChain(): Promise<{
+  root: PageFixture;
+  child: PageFixture;
+  grandchild: PageFixture;
+}> {
+  const context = await seedWorkspaceAndSpace();
+  const root = await insertPage(context, 'Root');
+  const child = await insertPage(context, 'Child', root.id);
+  const grandchild = await insertPage(context, 'Grandchild', child.id);
+
+  return { root, child, grandchild };
+}
+
+export async function seedSelfCycle(): Promise<{ self: PageFixture }> {
+  const context = await seedWorkspaceAndSpace();
+  const self = await insertPage(context, 'Self');
+
+  await sql`UPDATE pages SET parent_page_id = ${self.id} WHERE id = ${self.id}`.execute(
+    db,
+  );
+
+  return { self: { ...self, parentPageId: self.id } };
+}
+
+export async function seedTwoPageCycle(): Promise<{
+  a: PageFixture;
+  b: PageFixture;
+}> {
+  const context = await seedWorkspaceAndSpace();
+  const a = await insertPage(context, 'A');
+  const b = await insertPage(context, 'B', a.id);
+
+  await sql`UPDATE pages SET parent_page_id = ${b.id} WHERE id = ${a.id}`.execute(
+    db,
+  );
+
+  return {
+    a: { ...a, parentPageId: b.id },
+    b,
+  };
+}
+
+export async function seedBranchingDescendantTree(): Promise<{
+  root: PageFixture;
+  firstChild: PageFixture;
+  secondChild: PageFixture;
+  grandchild: PageFixture;
+}> {
+  const context = await seedWorkspaceAndSpace();
+  const root = await insertPage(context, 'Root');
+  const firstChild = await insertPage(context, 'First child', root.id);
+  const secondChild = await insertPage(context, 'Second child', root.id);
+  const grandchild = await insertPage(context, 'Grandchild', firstChild.id);
+
+  return { root, firstChild, secondChild, grandchild };
+}