code: def health(self, request, project):
          
          revision = request.query_params.get('revision')
  
          try:
              push = Push.objects.get(revision=revision, repository__name=project)
          except Push.DoesNotExist:
              return Response("No push with revision: {0}".format(revision),
                              status=HTTP_404_NOT_FOUND)
          push_health_test_failures = get_push_health_test_failures(push, REPO_GROUPS['trunk'])
          test_result = 'fail' if len(push_health_test_failures['needInvestigation']) else 'pass'
  
          return Response({
              'revision': revision,
              'id': push.id,
              'result': test_result,
              'metrics': [
                  {
                      'name': 'Tests',
                      'result': test_result,
                      'failures': push_health_test_failures,
                  },
                  {
                      'name': 'Builds (Not yet implemented)',
                      'result': 'pass',
                      'details': ['Wow, everything passed!'],
                  },
                  {
                      'name': 'Linting (Not yet implemented)',
                      'result': 'pass',
                      'details': ['Gosh, this code is really nicely formatted.'],
                  },
                  {
                      'name': 'Coverage (Not yet implemented)',
                      'result': 'pass',
                      'details': [
                          'Covered 42% of the tests that are needed for feature ``foo``.',
                          'Covered 100% of the tests that are needed for feature ``bar``.',
                          'The ratio of people to cake is too many...',
                      ],
                  },
                  {
                      'name': 'Performance (Not yet implemented)',
                      'result': 'pass',
                      'details': ['Ludicrous Speed'],
                  },
              ],
          })
docs: Return a calculated assessment of the health of this push.