import { describe, it } from 'node:test';
import assert from 'node:assert/strict';
import {
  DOCUMENT_BLOCK_TESTID,
  documentBlockDomAttrs,
} from './documentBlockDom';

describe('documentBlockDomAttrs', () => {
  it('marks a real DocumentBlock in pure mode without overlay kind', () => {
    const attrs = documentBlockDomAttrs({ id: 'blk_intake_p1' });
    assert.equal(attrs['data-testid'], DOCUMENT_BLOCK_TESTID);
    assert.equal(attrs['data-testid'], 'document-block');
    assert.equal(attrs['data-document-block'], 'blk_intake_p1');
    assert.equal(attrs['data-block-id'], 'blk_intake_p1');
    assert.equal('data-overlay-kind' in attrs, false);
  });

  it('keeps the same stable attrs when overlay is later attached separately', () => {
    const pure = documentBlockDomAttrs({ id: 'blk_h1' });
    const withOverlay = {
      ...documentBlockDomAttrs({ id: 'blk_h1' }),
      'data-overlay-kind': 'modify',
    };
    assert.equal(pure['data-document-block'], withOverlay['data-document-block']);
    assert.equal(pure['data-testid'], withOverlay['data-testid']);
    assert.notEqual(Object.prototype.hasOwnProperty.call(pure, 'data-overlay-kind'), true);
  });
});