test.js

/*!
 * delimiter-regex <https://github.com/jonschlinkert/delimiter-regex>
 *
 * Copyright (c) 2014-2015, Jon Schlinkert.
 * Licensed under the MIT License.
 */

'use strict';

var assert = require('assert');
var delims = require('./');

function match(str, re) {
  return re.exec(str);
}

describe('delims', function () {
  it('should return default es6 regex:', function () {
    assert.deepEqual(/\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g, delims());
    assert.deepEqual(/\$\{([\s\S]+?)\}/, delims('\\$\\{', '\\}'));
  });

  it('should match correctly:', function () {
    assert.equal(match('abc/${foo}/xyz', delims())[0], '${foo}');
    assert.equal(match('abc/${foo}/xyz', delims())[1], 'foo');
    assert.equal(match('abc/${foo}/${bar}/xyz', delims())[0], '${foo}');
    assert.equal(match('abc/${foo}/${bar}/xyz', delims())[1], 'foo');
    assert.equal(match('---\na: b\nc: d\n---\ncontent', delims('---', '---'))[0], '---\na: b\nc: d\n---');
    assert.equal(match('---\na: b\nc: d\n---\ncontent', delims('---\\s*', '\\s*---'))[1], 'a: b\nc: d');
    assert.equal(match('abc/${foo}/${bar}/xyz', delims())[1], 'foo');
  });

  it('should support array format:', function () {
    assert.deepEqual(/---([\s\S]+?)---/, delims(['---', '---']));
    assert.deepEqual(/\{\{([\s\S]+?)\}\}/, delims(['\\{\\{', '\\}\\}']));
    assert.deepEqual(/\{{([\s\S]+?)}}/, delims(['\\{{', '}}']));
  });

  it('should support regexp flags:', function () {
    assert.deepEqual(/---([\s\S]+?)---/g, delims('---', '---', {flags: 'g'}));
    assert.deepEqual(/\$\{([\s\S]+?)\}/gm, delims({flags: 'gm'}));
  });

  it('should not escape characters:', function () {
    assert.deepEqual(/---(\w)*([\s\S]+?)---/, delims('---(\\w)*', '---'));
  });

  it('should support list format:', function () {
    assert.deepEqual(/---([\s\S]+?)---/, delims('---', '---'));
    assert.deepEqual(/\{\{([\s\S]+?)\}\}/, delims('\\{\\{', '\\}\\}'));
  });

  it('should respect escapes', function () {
    assert.deepEqual(/\-\-\-([\s\S]+?)\-\-\-/, delims('\\-\\-\\-', '\\-\\-\\-'));
    assert.deepEqual(/\{\{([\s\S]+?)}}/, delims('\\{\\{', '}}'));
    assert.deepEqual(/\{{([\s\S]+?)}}/, delims('\\{{', '}}'));
  });
});