text: /**
   * The MIT License (MIT)
   *
   * Copyright (c) 2018 Mickael Jeanroy
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in all
   * copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   */
  
  import {isAsciiAlpha} from 'src/core/whatwg/url/parser/common/is-ascii-alpha';
  
  describe('isAsciiAlpha', () => {
    it('should return false with nil or the empty string', () => {
      expect(isAsciiAlpha(null)).toBe(false);
      expect(isAsciiAlpha(undefined)).toBe(false);
      expect(isAsciiAlpha('')).toBe(false);
    });
  
    it('should return false with character between 0 and 9', () => {
      for (let i = 0; i <= 9; ++i) {
        const c = i.toString();
        expect(isAsciiAlpha(c)).toBe(false);
      }
    });
  
    it('should return true with a lower character between a and z', () => {
      const startCodePoint = 'a'.charCodeAt(0);
  
      for (let i = 0; i < 26; ++i) {
        const code = startCodePoint + i;
        const c = String.fromCharCode(code);
        expect(isAsciiAlpha(c)).toBe(true);
      }
    });
  
    it('should return true with an upper character between A and Z', () => {
      const startCodePoint = 'A'.charCodeAt(0);
  
      for (let i = 0; i < 26; ++i) {
        const code = startCodePoint + i;
        const c = String.fromCharCode(code);
        expect(isAsciiAlpha(c)).toBe(true);
      }
    });
  });
  