Add specific tests for name generation

graphene_django/converter.py

@@ -69,16 +69,15 @@ def convert_choices_to_named_enum_with_descriptions(name, choices):
     return Enum(name, list(named_choices), type=EnumWithDescriptionsType)
 
 
-def generate_enum_name(django_model, field):
+def generate_enum_name(django_model_meta, field):
-    meta = django_model._meta
     if graphene_settings.CHOICES_TO_ENUM_UNIQUE_TYPE_NAME is True:
         name = "DjangoModel{app_label}{object_name}{field_name}Choices".format(
-            app_label=to_camel_case(meta.app_label).capitalize(),
+            app_label=to_camel_case(django_model_meta.app_label.title()),
-            object_name=meta.object_name,
+            object_name=django_model_meta.object_name,
-            field_name=to_camel_case(field.name).capitalize(),
+            field_name=to_camel_case(field.name.title()),
         )
     else:
-        name = to_camel_case("{}_{}".format(meta.object_name, field.name))
+        name = to_camel_case("{}_{}".format(django_model_meta.object_name, field.name))
     return name
 
 
@@ -91,7 +90,7 @@ def convert_django_field_with_choices(
             return converted
     choices = getattr(field, "choices", None)
     if choices and convert_choices_to_enum:
-        name = generate_enum_name(field.model, field)
+        name = generate_enum_name(field.model._meta, field)
         enum = convert_choices_to_named_enum_with_descriptions(name, choices)
         required = not (field.blank or field.null)
         converted = enum(description=field.help_text, required=required)

graphene_django/tests/test_converter.py

@@ -1,4 +1,5 @@
 import pytest
+from collections import namedtuple
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
 from graphene import NonNull
@@ -10,9 +11,14 @@ from graphene.types.datetime import DateTime, Date, Time
 from graphene.types.json import JSONString
 
 from ..compat import JSONField, ArrayField, HStoreField, RangeField, MissingType
-from ..converter import convert_django_field, convert_django_field_with_choices
+from ..converter import (
+    convert_django_field,
+    convert_django_field_with_choices,
+    generate_enum_name,
+)
 from ..registry import Registry
 from ..types import DjangoObjectType
+from ..settings import graphene_settings
 from .models import Article, Film, FilmDetails, Reporter
 
 
@@ -325,3 +331,25 @@ def test_should_postgres_range_convert_list():
     assert isinstance(field.type, graphene.NonNull)
     assert isinstance(field.type.of_type, graphene.List)
     assert field.type.of_type.of_type == graphene.Int
+
+
+def test_generate_enum_name():
+    MockDjangoModelMeta = namedtuple("DjangoMeta", ["app_label", "object_name"])
+    graphene_settings.CHOICES_TO_ENUM_UNIQUE_TYPE_NAME = True
+
+    # Simple case
+    field = graphene.Field(graphene.String, name="type")
+    model_meta = MockDjangoModelMeta(app_label="users", object_name="User")
+    assert generate_enum_name(model_meta, field) == "DjangoModelUsersUserTypeChoices"
+
+    # More complicated multiple work case
+    field = graphene.Field(graphene.String, name="fizz_buzz")
+    model_meta = MockDjangoModelMeta(
+        app_label="some_long_app_name", object_name="SomeObject"
+    )
+    assert (
+        generate_enum_name(model_meta, field)
+        == "DjangoModelSomeLongAppNameSomeObjectFizzBuzzChoices"
+    )
+
+    graphene_settings.CHOICES_TO_ENUM_UNIQUE_TYPE_NAME = False