code: def color_normalize_tests():
      c = dict(
          [(k.lower(), v.upper()) for k, v in list(cf.cnames.items())]
      )
      d = {}
      for k, v in list(c.items()):
          assert_equals(v, cf.normalize(k).upper())
      return 2
  
imports: import cufflinks
  import pandas
  import numpy
  import unittest
  from nose.tools import assert_equals
label_desc: Use image node_id 12 for calling a global function with example usage: color_normalize_tests() and returns: int