@tiptap/pm 3.11.0: Transaction

Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify @tiptap/pm.Transaction in pkg:npm/%40tiptap/pm@3.11.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40tiptap/pm@3.11.0
Demonstrate these symbols/APIs:
  - @tiptap/pm.Transaction

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.

{"case":{"caseId":"case:sha256:f50b2180f7d1cdd8da67ae4460b0066c9561c981afc7cd395581c937a1cdabb8","contract":["Transaction is a constructor extending Transform and exported by @tiptap/pm/state","EditorState.tr creates a Transaction initialized with docChanged as false and valid selection","tr.insertText inserts text at a position and updates docChanged to true","tr.delete removes content in the specified range from the document","tr.setMeta and tr.getMeta store and retrieve custom transaction metadata","tr.setSelection updates selection and sets selectionSet flag","tr.addStoredMark and tr.removeStoredMark manage active stored marks","tr.scrollIntoView marks the transaction as requesting scroll into view","state.apply consumes the Transaction and returns a new EditorState with updated document"],"goal":"verify @tiptap/pm.Transaction in pkg:npm/%40tiptap/pm@3.11.0","kind":"HOW","packages":["pkg:npm/%40tiptap/pm@3.11.0"],"schemaVersion":1,"symbols":["@tiptap/pm.Transaction"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","libc":"glibc","libcVersion":"2.39","os":"linux","osVersionBucket":"24","packageManager":"npm","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/%40tiptap/pm@3.11.0"],"schemaVersion":1,"subject":"pkg:npm/%40tiptap/pm@3.11.0","symbols":["@tiptap/pm.Transaction"],"verifierAdapter":"node-typescript@1"}

import { Transaction, EditorState, Selection, TextSelection } from '@tiptap/pm/state';
import { schema } from '@tiptap/pm/schema-basic';
import { Transform } from '@tiptap/pm/transform';

export { Transaction, EditorState, Selection, TextSelection, Transform, schema };
export default Transaction;

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      "integrity": "sha512-ARDJmphmdvUk6Glw7y9DQ2bFkKBHwQHLi2lsaH6PPmz/Ka9sFOBsBluozhDltWmnv9u/cF6Rt87znRTPV+yp/A==",
      "license": "MIT"
    },
    "node_modules/w3c-keyname": {
      "version": "2.2.8",
      "resolved": "https://registry.npmjs.org/w3c-keyname/-/w3c-keyname-2.2.8.tgz",
      "integrity": "sha512-dpojBhNsCNN7T82Tm7k26A6G9ML3NkhDsnw9n/eoxSRlVBB4CEtIQ/KTCLI2Fwf3ataSXRhYFkQi3SlnFwPvPQ==",
      "license": "MIT"
    }
  }
}

{
  "name": "sample-tiptap-pm-transaction",
  "version": "1.0.0",
  "type": "module",
  "private": true,
  "dependencies": {
    "@tiptap/pm": "3.11.0"
  }
}

{
  "schemaVersion": 1,
  "goal": "verify @tiptap/pm.Transaction in pkg:npm/%40tiptap/pm@3.11.0",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40tiptap/pm@3.11.0"
  ],
  "symbols": [
    "@tiptap/pm.Transaction"
  ]
}

import assert from 'node:assert/strict';
import { Transaction, EditorState, Selection, TextSelection, Transform, schema } from '../index.mjs';

// 1. Transaction is a constructor extending Transform and exported by @tiptap/pm/state
{
  const baseState = EditorState.create({ schema });
  const directTr = new Transaction(baseState.doc);
  assert.ok(directTr instanceof Transaction);
  assert.ok(directTr instanceof Transform);
}

// 2. EditorState.tr creates a Transaction initialized with docChanged as false and valid selection
{
  const state = EditorState.create({ schema });
  const tr = state.tr;
  assert.ok(tr instanceof Transaction);
  assert.equal(tr.docChanged, false);
  assert.ok(tr.selection instanceof Selection);
  assert.equal(typeof tr.time, 'number');
}

// 3. tr.insertText inserts text at a position and updates docChanged to true
{
  const state = EditorState.create({ schema });
  const tr = state.tr;
  tr.insertText('Hello world', 1);
  assert.equal(tr.docChanged, true);
  assert.equal(tr.doc.textContent, 'Hello world');
}

// 4. tr.delete removes content in the specified range from the document
{
  const state = EditorState.create({ schema });
  const tr = state.tr;
  tr.insertText('Hello world', 1);
  tr.delete(1, 7);
  assert.equal(tr.doc.textContent, 'world');
}

// 5. tr.setMeta and tr.getMeta store and retrieve custom transaction metadata
{
  const state = EditorState.create({ schema });
  const tr = state.tr;
  tr.setMeta('customKey', 'customValue');
  assert.equal(tr.getMeta('customKey'), 'customValue');
  assert.equal(tr.getMeta('nonExistentKey'), undefined);
}

// 6. tr.setSelection updates selection and sets selectionSet flag
{
  const state = EditorState.create({ schema });
  const tr = state.tr;
  assert.equal(tr.selectionSet, false);
  tr.insertText('Hello world', 1);
  const sel = TextSelection.create(tr.doc, 1, 3);
  tr.setSelection(sel);
  assert.equal(tr.selectionSet, true);
  assert.equal(tr.selection.from, 1);
  assert.equal(tr.selection.to, 3);
}

// 7. tr.addStoredMark and tr.removeStoredMark manage active stored marks
{
  const state = EditorState.create({ schema });
  const tr = state.tr;
  const emMark = schema.marks.em.create();
  tr.addStoredMark(emMark);
  assert.ok(tr.storedMarks.some(m => m.type.name === 'em'));
  tr.removeStoredMark(emMark);
  assert.ok(!tr.storedMarks || !tr.storedMarks.some(m => m.type.name === 'em'));
}

// 8. tr.scrollIntoView marks the transaction as requesting scroll into view
{
  const state = EditorState.create({ schema });
  const tr = state.tr;
  assert.equal(tr.scrolledIntoView, false);
  tr.scrollIntoView();
  assert.equal(tr.scrolledIntoView, true);
}

// 9. state.apply consumes the Transaction and returns a new EditorState with updated document
{
  const state = EditorState.create({ schema });
  const tr = state.tr;
  tr.insertText('Hello world', 1);
  const nextState = state.apply(tr);
  assert.ok(nextState instanceof EditorState);
  assert.equal(nextState.doc.textContent, 'Hello world');
  assert.equal(state.doc.textContent, '');
}

console.log('All contract assertions passed.');