Reads a set of FHIR resources from a folder, validates them against a server and dynamically builds a set of unittest cases Currently - put each JSON resource into the RESOURCE_FOLDER as a .json file (1 file per resource). #TODO Allow reading of XML resources and GETing a resource from a url.

fhirvalidate.py

import unittest
import os
import os.path
import json
import requests

"""
Reads a set of FHIR resources from a folder, validates them against a server
and dynamically builds a set of unittest cases
Currently - put each JSON resource into the RESOURCE_FOLDER as a .json file (1 file per resource).
#TODO Allow reading of XML resources and GETing a resource from a url.
"""
RESOURCE_FOLDER = "./resources"
VALIDATE_URL = "https://data.developer.nhs.uk/ccri-fhir/STU3/%(resourceType)s/$validate"

def load_resources(folder = RESOURCE_FOLDER):
  resources = [] # [(filename,mimetype,resource),]
  files = os.listdir(folder)
  for name in files:
    if name.endswith(".json"):
      with open(os.path.join(folder,name),"r") as f:
        json_resource = json.load(f)
        resources.append((name,"application/fhir+json", json_resource))
    elif name.endswith(".xml"):
      raise ValueError("XML Not yet supported")
    elif name.endswith(".urls"):
      raise ValueError("URL List not yet supported")
  return resources

def validate_resource(mimetype,resource):
  headers = {"Content-Type": mimetype}
  if mimetype == "application/fhir+json":
    resource_type = resource["resourceType"]
  else:
      raise ValueError("Mimetype %s not supported" % mimetype)
  validate_url = VALIDATE_URL % {"resourceType": resource_type}
  response = requests.post(validate_url,data = json.dumps(resource),headers=headers)
  return response.status_code,response

class TestResourceContainer(unittest.TestCase):
    longMessage = True

def test_generator(status,response):
    def test(self):
        self.assertEqual(status,200,msg=response.text)
    return test

def go():
  resources = load_resources()
  results = []
  for name, mimetype, resource in resources:
    status, response = validate_resource(mimetype, resource)
    test_func = test_generator(status,response)
    setattr(TestResourceContainer, 'test_{0}'.format(name), test_func)
  unittest.main()

if __name__=="__main__":
  go()