// Copyright (c) Microsoft Corporation. All rights reserved.

// Licensed under the MIT License.

'use strict';

import * as assert from 'assert';

import { TextIterator } from '../../client/language/textIterator';

// tslint:disable-next-line:max-func-body-length

suite('Language.TextIterator', () => {

test('Construction', async () => {

const content = 'some text';

const ti = new TextIterator(content);

assert.equal(ti.length, content.length);

assert.equal(ti.getText(), content);

});

test('Iteration', async () => {

const content = 'some text';

const ti = new TextIterator(content);

for (let i = -2; i < content.length + 2; i += 1) {

const ch = ti.charCodeAt(i);

if (i < 0 || i >= content.length) {

assert.equal(ch, 0);

} else {

assert.equal(ch, content.charCodeAt(i));

}

}

});

});