old_contents: '''Basic tests about save behavior'''
  # coding=utf-8
  
  # External imports
  import os
  import urllib2
  
  # Internal imports
  import vcr
  
  def test_disk_saver_nowrite(tmpdir):
      '''Ensure that when you close a cassette without changing it it doesn't rewrite the file'''
      fname = str(tmpdir.join('synopsis.yaml'))
      with vcr.use_cassette(fname) as cass:
          urllib2.urlopen('http://www.iana.org/domains/reserved').read()
          assert cass.play_count == 0
      last_mod = os.path.getmtime(fname)
  
      with vcr.use_cassette(fname) as cass:
          urllib2.urlopen('http://www.iana.org/domains/reserved').read()
          assert cass.play_count == 1
          assert cass.dirty == False
      last_mod2 = os.path.getmtime(fname)
  
      assert last_mod == last_mod2
  
  def test_disk_saver_write(tmpdir):
      '''Ensure that when you close a cassette with changing it it does rewrite the file'''
      fname = str(tmpdir.join('synopsis.yaml'))
      with vcr.use_cassette(fname) as cass:
          urllib2.urlopen('http://www.iana.org/domains/reserved').read()
          assert cass.play_count == 0
      last_mod = os.path.getmtime(fname)
  
      with vcr.use_cassette(fname) as cass:
          urllib2.urlopen('http://www.iana.org/domains/reserved').read()
          urllib2.urlopen('http://httpbin.org/').read()
          assert cass.play_count == 1
          assert cass.dirty
      last_mod2 = os.path.getmtime(fname)
  
      assert last_mod != last_mod2
  
  
new_contents: '''Basic tests about save behavior'''
  # coding=utf-8
  
  # External imports
  import os
  import urllib2
  import time
  
  # Internal imports
  import vcr
  
  def test_disk_saver_nowrite(tmpdir):
      '''Ensure that when you close a cassette without changing it it doesn't rewrite the file'''
      fname = str(tmpdir.join('synopsis.yaml'))
      with vcr.use_cassette(fname) as cass:
          urllib2.urlopen('http://www.iana.org/domains/reserved').read()
          assert cass.play_count == 0
      last_mod = os.path.getmtime(fname)
  
      with vcr.use_cassette(fname) as cass:
          urllib2.urlopen('http://www.iana.org/domains/reserved').read()
          assert cass.play_count == 1
          assert cass.dirty == False
      last_mod2 = os.path.getmtime(fname)
  
      assert last_mod == last_mod2
  
  def test_disk_saver_write(tmpdir):
      '''Ensure that when you close a cassette after changing it it does rewrite the file'''
      fname = str(tmpdir.join('synopsis.yaml'))
      with vcr.use_cassette(fname) as cass:
          urllib2.urlopen('http://www.iana.org/domains/reserved').read()
          assert cass.play_count == 0
      last_mod = os.path.getmtime(fname)
  
      time.sleep(1) # Make sure at least 1 second passes, otherwise sometimes
      # the mtime doesn't change
  
      with vcr.use_cassette(fname) as cass:
          urllib2.urlopen('http://www.iana.org/domains/reserved').read()
          urllib2.urlopen('http://httpbin.org/').read()
          assert cass.play_count == 1
          assert cass.dirty
      last_mod2 = os.path.getmtime(fname)
  
      assert last_mod != last_mod2
  
  
subject: Fix intermittent test failure due to http happening too fast