validator.py

class BaseValidator(object):

  def validate(rules_definition):
      errors = []
      for rule in rules_definition.rules:
          response = rule.validate()
          if response[1]:
              errors.append(response[1])
    if len(errors) > 0
        return Cloudwatch
    else
        

class HttpRequest(object):
    # Isolate all of the request specific validation that needs to happen into here
    # Knows how to make http requests and pass res to validate function


class RecommendationCanary(HttpRequest):
    # Isolate the specific test information that happens here
    self.BASE_URL
    self.PATH
    self.REQUEST_OPTIONS

    def __init__(self):
        self.BASE_URL = 'subdomain.example.com'
        self.PATH = '/path'
        self.OPTIONS = {}
        resp = request.post(BASE_URL, PATH, OPTIONS)
        build_rules(resp)

    def build_rules(req):
        # add any validations that need to happen 
        rules = [
            css_rule(req, '.h2', 'Hello'),
            css_gte(req, '.h2', 3),
            css_lte(req, 'ul.li', 4),
        ]
        return rules
    
class BaseRule(object):
  pass

class CSSEqualsRule(object):

    @classmethod
    def validate(cls, req, selector, comparison):
        x = req.css_select(selector)
        if x == comparison:
            return (true, )
        else:
            return (false, 'CSS selector {} does not equal {}'.format(selector, comparison))