text: var nx = require('next-js-core2');
  require('../src/next-size2byte');
  
  test('nx.size2byte', function() {
    var rs1 = nx.size2byte(0);
    var rs2 = nx.size2byte(1024);
  
    expect(rs1[0]).toBe(0);
    expect(rs2).toEqual([1, 'KB']);
  });
  