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"use strict";

var trim = require("../../src/deps/string/trim");

var eq = (x, y) => expect(x).toEqual(y);

describe('trim', function () {
  var test = '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFFHello, World!\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF';
  it('trims a string', function () {
    eq(trim('   xyz  '), 'xyz');
  });
  it('trims all ES5 whitespace', function () {
    eq(trim(test), 'Hello, World!');
    eq(trim(test).length, 13);
  });
  it('does not trim the zero-width space', function () {
    eq(trim('\u200b'), '\u200b');
    eq(trim('\u200b').length, 1);
  });

  if (typeof String.prototype.trim !== 'function') {
    it('falls back to a shim if String.prototype.trim is not present', function () {
      eq(trim('   xyz  '), 'xyz');
      eq(trim(test), 'Hello, World!');
      eq(trim(test).length, 13);
      eq(trim('\u200b'), '\u200b');
      eq(trim('\u200b').length, 1);
    });
  }
});