old_contents: 
  
  import pytest
  
  
  def test_scrub_doi():
      from vdm.utils import scrub_doi
      d = 'http://dx.doi.org/10.1234'
      scrubbed = scrub_doi(d)
      assert(scrubbed == '10.1234')
  
      d = '10.123 4'
      assert(
          scrub_doi(d) == '10.1234'
      )
  
      d = '<p>10.1234</p>'
      assert(
          scrub_doi(d) == '10.1234'
      )
  
new_contents: 
  
  import pytest
  
  
  def test_scrub_doi():
      from vdm.utils import scrub_doi
      d = 'http://dx.doi.org/10.1234'
      scrubbed = scrub_doi(d)
      assert(scrubbed == '10.1234')
  
      d = '10.123 4'
      assert(
          scrub_doi(d) == '10.1234'
      )
  
      d = '<p>10.1234</p>'
      assert(
          scrub_doi(d) == '10.1234'
      )
  
  
  def test_pull():
      from vdm.utils import pull
      d = {}
      d['mykey'] = 'Value'
      assert(
          pull(d, 'mykey') == 'Value'
      )
  
subject: Add utils tests. Rework pull.