@tiptap/pm 3.11.0: NodeSelection

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.NodeSelection 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.NodeSelection

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:dce956e095f1c24920fc37efcc7fe1fc53d89bbb907a52b8f96284ae753fee3c","contract":["NodeSelection.create selects an immediate node and determines from and to boundaries","NodeSelection.isSelectable identifies whether a node can be selected as a node","NodeSelection.content extracts a Slice containing the selected node","NodeSelection.map preserves node selection position across document transformations","NodeSelection.toJSON and NodeSelection.fromJSON serialize and restore node selections","NodeSelection integrates with EditorState transactions to select and replace nodes","NodeSelection.create throws RangeError when given an out-of-range position"],"goal":"verify @tiptap/pm.NodeSelection in pkg:npm/%40tiptap/pm@3.11.0","kind":"HOW","packages":["pkg:npm/%40tiptap/pm@3.11.0"],"schemaVersion":1,"symbols":["@tiptap/pm.NodeSelection"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","language":"javascript","libc":"glibc","libcVersion":"2.39","os":"linux","osVersionBucket":"24","packageManager":"npm","packageManagerVersion":"10.9.8","runtime":"node","runtimeVersion":"22.23.2","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.NodeSelection"],"verifierAdapter":"node-typescript@1"}

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

export { NodeSelection, Selection, TextSelection, EditorState, schema };
export default NodeSelection;

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

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

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

// 1. NodeSelection.create selects an immediate node and determines from and to boundaries
{
  const doc = schema.node('doc', null, [
    schema.node('paragraph', null, [schema.text('Hello')]),
    schema.node('horizontal_rule'),
    schema.node('paragraph', null, [schema.text('World')])
  ]);

  const sel = NodeSelection.create(doc, 7);
  assert.ok(sel instanceof NodeSelection);
  assert.ok(sel instanceof Selection);
  assert.equal(sel.from, 7);
  assert.equal(sel.to, 8);
  assert.equal(sel.node.type.name, 'horizontal_rule');
}

// 2. NodeSelection.isSelectable identifies whether a node can be selected as a node
{
  const paragraph = schema.node('paragraph', null, [schema.text('Sample')]);
  const hr = schema.node('horizontal_rule');
  const textNode = schema.text('Sample text');

  assert.equal(NodeSelection.isSelectable(paragraph), true);
  assert.equal(NodeSelection.isSelectable(hr), true);
  assert.equal(NodeSelection.isSelectable(textNode), false);
}

// 3. NodeSelection.content extracts a Slice containing the selected node
{
  const doc = schema.node('doc', null, [
    schema.node('horizontal_rule')
  ]);
  const sel = NodeSelection.create(doc, 0);
  const slice = sel.content();
  assert.equal(slice.content.childCount, 1);
  assert.equal(slice.content.firstChild.type.name, 'horizontal_rule');
}

// 4. NodeSelection.map preserves node selection position across document transformations
{
  const doc = schema.node('doc', null, [
    schema.node('paragraph', null, [schema.text('First')]),
    schema.node('horizontal_rule')
  ]);
  const state = EditorState.create({ schema, doc });
  const sel = NodeSelection.create(state.doc, 7);
  const tr = state.tr.insertText('Prefix: ', 1);
  const nextState = state.apply(tr);

  const mapped = sel.map(nextState.doc, tr.mapping);
  assert.ok(mapped instanceof NodeSelection);
  assert.equal(mapped.from, 7 + 'Prefix: '.length);
  assert.equal(mapped.node.type.name, 'horizontal_rule');
}

// 5. NodeSelection.toJSON and NodeSelection.fromJSON serialize and restore node selections
{
  const doc = schema.node('doc', null, [
    schema.node('paragraph', null, [schema.text('First')]),
    schema.node('horizontal_rule')
  ]);
  const sel = NodeSelection.create(doc, 7);
  const json = sel.toJSON();
  assert.deepEqual(json, { type: 'node', anchor: 7 });

  const restored = NodeSelection.fromJSON(doc, json);
  assert.ok(restored instanceof NodeSelection);
  assert.ok(restored.eq(sel));
}

// 6. NodeSelection integrates with EditorState transactions to select and replace nodes
{
  const doc = schema.node('doc', null, [
    schema.node('paragraph', null, [schema.text('Before')]),
    schema.node('horizontal_rule'),
    schema.node('paragraph', null, [schema.text('After')])
  ]);
  const state = EditorState.create({ schema, doc });
  const sel = NodeSelection.create(state.doc, 8);
  const tr = state.tr.setSelection(sel);
  const selectedState = state.apply(tr);

  assert.ok(selectedState.selection instanceof NodeSelection);
  assert.equal(selectedState.selection.from, 8);
  assert.equal(selectedState.selection.node.type.name, 'horizontal_rule');

  const newBlockquote = schema.node('blockquote', null, [
    schema.node('paragraph', null, [schema.text('Quote')])
  ]);
  const replaceTr = selectedState.tr.replaceSelectionWith(newBlockquote);
  const replacedState = selectedState.apply(replaceTr);

  assert.equal(replacedState.doc.child(1).type.name, 'blockquote');
}

// 7. NodeSelection.create throws RangeError when given an out-of-range position
{
  const doc = schema.node('doc', null, [
    schema.node('paragraph', null, [schema.text('Test')])
  ]);
  assert.throws(
    () => NodeSelection.create(doc, 999),
    { name: 'RangeError' }
  );
}

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