pdfjs-dist/lib/test/unit/bidi_spec.js

/* Copyright 2017 Mozilla Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
'use strict';

var coreBidi = require('../../core/bidi.js');
var bidi = coreBidi.bidi;
describe('bidi', function () {
  it('should mark text as RTL if more than 30% of text is RTL', function () {
    var test = '\u0645\u0635\u0631 Egypt';
    var result = 'Egypt \u0631\u0635\u0645';
    var bidiText = bidi(test, -1, false);
    expect(bidiText.str).toEqual(result);
    expect(bidiText.dir).toEqual('rtl');
  });
  it('should mark text as LTR if less than 30% of text is RTL', function () {
    var test = 'Egypt is known as \u0645\u0635\u0631 in Arabic.';
    var result = 'Egypt is known as \u0631\u0635\u0645 in Arabic.';
    var bidiText = bidi(test, -1, false);
    expect(bidiText.str).toEqual(result);
    expect(bidiText.dir).toEqual('ltr');
  });
});