cover enum case where choice begins with a number

graphene_django/tests/models.py

@@ -3,7 +3,7 @@ from __future__ import absolute_import
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
 
-CHOICES = ((1, "this"), (2, _("that")))
+CHOICES = ((1, "1: this"), (2, _("2: that")))
 
 
 class Pet(models.Model):

graphene_django/tests/test_types.py

@@ -172,8 +172,8 @@ type Reporter {
 }
 
 enum ReporterAChoice {
-  THIS
-  THAT
+  A_1_THIS
+  A_2_THAT
 }
 
 enum ReporterReporterType {