Improved Django fields testing

graphene/__init__.py

@@ -25,6 +25,7 @@ from graphene.core.fields import (
     IDField,
     ListField,
     NonNullField,
+    FloatField,
 )
 
 from graphene.decorators import (

graphene/contrib/django/converter.py

@@ -13,7 +13,7 @@ from graphene.contrib.django.fields import ConnectionOrListField, DjangoModelFie
 
 
 @singledispatch
-def convert_django_field(field, cls):
+def convert_django_field(field):
     raise Exception(
         "Don't know how to convert the Django field %s (%s)" % (field, field.__class__))
 
@@ -25,12 +25,12 @@ def convert_django_field(field, cls):
 @convert_django_field.register(models.SlugField)
 @convert_django_field.register(models.URLField)
 @convert_django_field.register(models.UUIDField)
-def _(field, cls):
+def _(field):
     return StringField(description=field.description)
 
 
 @convert_django_field.register(models.AutoField)
-def _(field, cls):
+def _(field):
     return IDField(description=field.description)
 
 
@@ -39,33 +39,33 @@ def _(field, cls):
 @convert_django_field.register(models.SmallIntegerField)
 @convert_django_field.register(models.BigIntegerField)
 @convert_django_field.register(models.IntegerField)
-def _(field, cls):
+def _(field):
     return IntField(description=field.description)
 
 
 @convert_django_field.register(models.BooleanField)
-def _(field, cls):
+def _(field):
     return BooleanField(description=field.description, null=False)
 
 
 @convert_django_field.register(models.NullBooleanField)
-def _(field, cls):
+def _(field):
-    return BooleanField(description=field.description)
+    return BooleanField(description=field.description, null=True)
 
 
 @convert_django_field.register(models.FloatField)
-def _(field, cls):
+def _(field):
     return FloatField(description=field.description)
 
 
 @convert_django_field.register(models.ManyToManyField)
 @convert_django_field.register(models.ManyToOneRel)
-def _(field, cls):
+def _(field):
     model_field = DjangoModelField(field.related_model)
     return ConnectionOrListField(model_field)
 
 
 @convert_django_field.register(models.OneToOneField)
 @convert_django_field.register(models.ForeignKey)
-def _(field, cls):
+def _(field):
     return DjangoModelField(field.related_model, description=field.description)

graphene/contrib/django/types.py

@@ -33,7 +33,7 @@ class DjangoObjectTypeMeta(ObjectTypeMeta):
                 # We skip this field if we specify only_fields and is not
                 # in there. Or when we excldue this field in exclude_fields
                 continue
-            converted_field = convert_django_field(field, cls)
+            converted_field = convert_django_field(field)
             cls.add_to_class(field.name, converted_field)
 
 

tests/contrib_django/test_converter.py

@@ -0,0 +1,105 @@
+from py.test import raises
+from collections import namedtuple
+from pytest import raises
+import graphene
+from graphene import relay
+from graphene.contrib.django.converter import (
+    convert_django_field
+)
+from graphene.contrib.django.fields import (
+    ConnectionOrListField,
+    DjangoModelField
+)
+from django.db import models
+from .models import Article, Reporter
+
+
+def assert_conversion(django_field, graphene_field, *args):
+    field = django_field(*args)
+    graphene_type = convert_django_field(field)
+    assert isinstance(graphene_type, graphene_field)
+    return graphene_type
+
+
+def test_should_unknown_django_field_raise_exception():
+    with raises(Exception) as excinfo:
+        convert_django_field(None)
+    assert 'Don\'t know how to convert the Django field' in str(excinfo.value)
+
+
+def test_should_date_convert_string():
+    assert_conversion(models.DateField, graphene.StringField)
+
+
+def test_should_char_convert_string():
+    assert_conversion(models.CharField, graphene.StringField)
+
+
+def test_should_text_convert_string():
+    assert_conversion(models.TextField, graphene.StringField)
+
+
+def test_should_email_convert_string():
+    assert_conversion(models.EmailField, graphene.StringField)
+
+
+def test_should_slug_convert_string():
+    assert_conversion(models.SlugField, graphene.StringField)
+
+
+def test_should_url_convert_string():
+    assert_conversion(models.URLField, graphene.StringField)
+
+
+def test_should_auto_convert_id():
+    assert_conversion(models.AutoField, graphene.IDField)
+
+
+def test_should_positive_integer_convert_int():
+    assert_conversion(models.PositiveIntegerField, graphene.IntField)
+
+
+def test_should_positive_small_convert_int():
+    assert_conversion(models.PositiveSmallIntegerField, graphene.IntField)
+
+
+def test_should_small_integer_convert_int():
+    assert_conversion(models.SmallIntegerField, graphene.IntField)
+
+
+def test_should_big_integer_convert_int():
+    assert_conversion(models.BigIntegerField, graphene.IntField)
+
+
+def test_should_integer_convert_int():
+    assert_conversion(models.IntegerField, graphene.IntField)
+
+
+def test_should_boolean_convert_boolean():
+    assert_conversion(models.BooleanField, graphene.BooleanField)
+
+
+def test_should_nullboolean_convert_boolean():
+    field = assert_conversion(models.NullBooleanField, graphene.BooleanField)
+    assert field.null == True
+
+
+def test_should_float_convert_float():
+    assert_conversion(models.FloatField, graphene.FloatField)
+
+
+def test_should_manytomany_convert_connectionorlist():
+    field = assert_conversion(models.ManyToManyField, ConnectionOrListField, Article)
+
+
+def test_should_manytoone_convert_connectionorlist():
+    graphene_type = convert_django_field(Reporter.articles.related)
+    assert isinstance(graphene_type, ConnectionOrListField)
+
+
+def test_should_onetoone_convert_model():
+    assert_conversion(models.OneToOneField, DjangoModelField, Article)
+
+
+def test_should_onetoone_convert_model():
+    assert_conversion(models.ForeignKey, DjangoModelField, Article)