=================================== FAILURES ===================================
  ________________ TestTriggerDag.test_trigger_dag_params_conf_1 _________________
  
  a = (<tests.www.test_views.TestTriggerDag testMethod=test_trigger_dag_params_conf_1>,)
  
      @wraps(func)
      def standalone_func(*a):
  >       return func(*(a + p.args), **p.kwargs)
  
  /usr/local/lib/python3.6/site-packages/parameterized/parameterized.py:530: 
  _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
  tests/www/test_views.py:2791: in test_trigger_dag_params_conf
      resp = self.client.get(f'trigger?dag_id={test_dag_id}&conf={test_request_conf}')
  /usr/local/lib/python3.6/site-packages/werkzeug/test.py:1006: in get
      return self.open(*args, **kw)
  /usr/local/lib/python3.6/site-packages/flask/testing.py:227: in open
      follow_redirects=follow_redirects,
  /usr/local/lib/python3.6/site-packages/werkzeug/test.py:970: in open
      response = self.run_wsgi_app(environ.copy(), buffered=buffered)
  /usr/local/lib/python3.6/site-packages/werkzeug/test.py:861: in run_wsgi_app
      rv = run_wsgi_app(self.application, environ, buffered=buffered)
  /usr/local/lib/python3.6/site-packages/werkzeug/test.py:1096: in run_wsgi_app
      app_rv = app(environ, start_response)
  /usr/local/lib/python3.6/site-packages/flask/app.py:2464: in __call__
      return self.wsgi_app(environ, start_response)
  /usr/local/lib/python3.6/site-packages/flask/app.py:2450: in wsgi_app
      response = self.handle_exception(e)
  /usr/local/lib/python3.6/site-packages/flask/app.py:1867: in handle_exception
      reraise(exc_type, exc_value, tb)
  /usr/local/lib/python3.6/site-packages/flask/_compat.py:39: in reraise
      raise value
  /usr/local/lib/python3.6/site-packages/flask/app.py:2447: in wsgi_app
      response = self.full_dispatch_request()
  /usr/local/lib/python3.6/site-packages/flask/app.py:1952: in full_dispatch_request
      rv = self.handle_user_exception(e)
  /usr/local/lib/python3.6/site-packages/flask/app.py:1821: in handle_user_exception
      reraise(exc_type, exc_value, tb)
  /usr/local/lib/python3.6/site-packages/flask/_compat.py:39: in reraise
      raise value
  /usr/local/lib/python3.6/site-packages/flask/app.py:1950: in full_dispatch_request
      rv = self.dispatch_request()
  /usr/local/lib/python3.6/site-packages/flask/app.py:1936: in dispatch_request
      return self.view_functions[rule.endpoint](**req.view_args)
  airflow/www/auth.py:34: in decorated
      return func(*args, **kwargs)
  airflow/www/decorators.py:60: in wrapper
      return f(*args, **kwargs)
  airflow/utils/session.py:65: in wrapper
      return func(*args, session=session, **kwargs)
  _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
  
  self = <airflow.www.views.Airflow object at 0x7fb436cab6d8>
  session = <sqlalchemy.orm.session.Session object at 0x7fb43604c2b0>
  
      @expose('/trigger', methods=['POST', 'GET'])
      @auth.has_access(
          [
              (permissions.ACTION_CAN_READ, permissions.RESOURCE_DAG),
              (permissions.ACTION_CAN_CREATE, permissions.RESOURCE_DAG_RUN),
          ]
      )
      @action_logging
      @provide_session
      def trigger(self, session=None):
          """Triggers DAG Run."""
          dag_id = request.values.get('dag_id')
          origin = get_safe_url(request.values.get('origin'))
          request_conf = request.values.get('conf')
      
          if request.method == 'GET':
              # Populate conf textarea with conf requests parameter, or dag.params
              default_conf = ''
              if request_conf:
                  default_conf = request_conf
              else:
                  try:
                      dag = current_app.dag_bag.get_dag(dag_id)
      
                      doc_md = wwwutils.wrapped_markdown(getattr(dag, 'doc_md', None))
                      default_conf = json.dumps(dag.params, indent=4)
                  except TypeError:
                      flash("Could not pre-populate conf field due to non-JSON-serializable data-types")
              return self.render_template(
  >               'airflow/trigger.html', dag_id=dag_id, origin=origin, conf=default_conf, doc_md=doc_md
              )
  E           UnboundLocalError: local variable 'doc_md' referenced before assignment
  
  airflow/www/views.py:1423: UnboundLocalError