cursor.integrationTest.ts

/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/

import assert from 'assert';
import { Selection } from '../../../common/core/selection.js';
import { withTestCodeEditor } from '../testCodeEditor.js';

suite('Editor Controller', () => {

	test('issue #23913: Greater than 1000+ multi cursor typing replacement text appears inverted, lines begin to drop off selection', function () {
		this.timeout(10000);
		const LINE_CNT = 2000;

		const text: string[] = [];
		for (let i = 0; i < LINE_CNT; i++) {
			text[i] = 'asd';
		}

		withTestCodeEditor(text, {}, (editor, viewModel) => {
			const model = editor.getModel();

			const selections: Selection[] = [];
			for (let i = 0; i < LINE_CNT; i++) {
				selections[i] = new Selection(i + 1, 1, i + 1, 1);
			}
			viewModel.setSelections('test', selections);

			viewModel.type('n', 'keyboard');
			viewModel.type('n', 'keyboard');

			for (let i = 0; i < LINE_CNT; i++) {
				assert.strictEqual(model.getLineContent(i + 1), 'nnasd', 'line #' + (i + 1));
			}

			assert.strictEqual(viewModel.getSelections().length, LINE_CNT);
			assert.strictEqual(viewModel.getSelections()[LINE_CNT - 1].startLineNumber, LINE_CNT);
		});
	});
});