old_contents: #!/usr/bin/env python2
  # Copyright 2016 The Fontbakery Authors
  # Copyright 2017 The Google Fonts Tools Authors
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #    http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  #
  import os
  import sys
  from util.google_fonts import (CodepointsInFont,
                                 codepointsInNamelist)
  
  NAM_DIR = os.path.join("encodings", "GF Glyph Sets")
  NAM_FILES = [
    "GF-latin-core_unique-glyphs.nam",
    "GF-latin-expert_unique-glyphs.nam",
    "GF-latin-plus_optional-glyphs.nam",
    "GF-latin-plus_unique-glyphs.nam",
    "GF-latin-pro_optional-glyphs.nam",
    "GF-latin-pro_unique-glyphs.nam"
  ]
  
  def main():
    if len(sys.argv) != 2 or sys.argv[1][-4:] != ".ttf":
      sys.exit('Usage: {} fontfile.ttf'.format(sys.argv[0]))
  
    expected = set()
    for nam_file in NAM_FILES:
      nam_filepath = os.path.join(NAM_DIR, nam_file)
      expected.update(codepointsInNamelist(nam_filepath))
  
    filename = sys.argv[1]
    cps = CodepointsInFont(filename)
    diff = cps - expected
    print filename,
    if bool(diff):
      print 'missing',
      for c in sorted(diff):
        print '0x%04X' % (c),
    else:
      print 'OK'
  
  
  if __name__ == '__main__':
    main()
  
new_contents: #!/usr/bin/env python2
  # Copyright 2016 The Fontbakery Authors
  # Copyright 2017 The Google Fonts Tools Authors
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #    http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  #
  import os
  import sys
  from util.google_fonts import (CodepointsInFont,
                                 codepointsInNamelist)
  
  NAM_DIR = os.path.join("encodings", "GF Glyph Sets")
  NAM_FILES = [
    "GF-latin-core_unique-glyphs.nam",
    "GF-latin-expert_unique-glyphs.nam",
    "GF-latin-plus_optional-glyphs.nam",
    "GF-latin-plus_unique-glyphs.nam",
    "GF-latin-pro_optional-glyphs.nam",
    "GF-latin-pro_unique-glyphs.nam"
  ]
  
  def main():
    if len(sys.argv) != 2 or sys.argv[1][-4:] != ".ttf":
      sys.exit('Usage: {} fontfile.ttf'.format(sys.argv[0]))
  
    expected = set()
    for nam_file in NAM_FILES:
      nam_filepath = os.path.join(NAM_DIR, nam_file)
      expected.update(codepointsInNamelist(nam_filepath))
  
    filename = sys.argv[1]
    diff = expected - CodepointsInFont(filename)
  
    print filename,
    if bool(diff):
      print 'missing',
      for c in sorted(diff):
        print '0x%04X' % (c),
    else:
      print 'OK'
  
  
  if __name__ == '__main__':
    main()
  
subject: fix logic in test_gf_coverage script