new_contents: #! /usr/bin/env python
  # -*- coding: utf-8 -*-
  
  # Author: Hamilton Kibbe <ham@hamiltonkib.be>
  
  from .tests import *
  from ..excellon_statements import *
  
  
  def test_ExcellonTool_factory():
      """ Test ExcellonTool factory method
      """
      exc_line = 'T8F00S00C0.12500'
      settings = {'format': (2, 5), 'zero_suppression': 'trailing',
                  'units': 'inch', 'notation': 'absolute'}
      tool = ExcellonTool.from_excellon(exc_line, settings)
      assert_equal(tool.diameter, 0.125)
      assert_equal(tool.feed_rate, 0)
      assert_equal(tool.rpm, 0)
  
  
  def test_ExcellonTool_dump():
      """ Test ExcellonTool to_gerber method
      """
      exc_lines = ['T1F00S00C0.01200', 'T2F00S00C0.01500', 'T3F00S00C0.01968',
                   'T4F00S00C0.02800', 'T5F00S00C0.03300', 'T6F00S00C0.03800',
                   'T7F00S00C0.04300', 'T8F00S00C0.12500', 'T9F00S00C0.13000', ]
      settings = {'format': (2, 5), 'zero_suppression': 'trailing',
                  'units': 'inch', 'notation': 'absolute'}
      for line in exc_lines:
          tool = ExcellonTool.from_excellon(line, settings)
          assert_equal(tool.to_excellon(), line)
      
subject: add tests