new_contents: """Tests for the Wallace API."""
  
  import subprocess
  import re
  import requests
  
  
  class TestHeroku(object):
  
      """The Heroku test class."""
  
      def test_sandbox(self):
          """Launch the experiment on Heroku."""
          sandbox_output = subprocess.check_output(
              "cd examples/bartlett1932; wallace sandbox --verbose", shell=True)
  
          id = re.search(
              'Running as experiment (.*)...', sandbox_output).group(1)
  
          r = requests.get("http://{}.herokuapp.com/summary".format(id))
  
          assert r.json()['status'] == []
  
subject: Create test for sandboxing via Heroku