Add tests

graphene_django/forms/tests/test_mutation.py

@@ -1,7 +1,9 @@
 from django import forms
 from django.test import TestCase
+from django.core.exceptions import ValidationError
 from py.test import raises
 
+from graphene import ObjectType, String, Schema
 from graphene_django.tests.models import Film, FilmDetails, Pet
 
 from ...settings import graphene_settings
@@ -11,6 +13,15 @@ from ..mutation import DjangoFormMutation, DjangoModelFormMutation
 class MyForm(forms.Form):
     text = forms.CharField()
 
+    def clean_text(self):
+        text = self.cleaned_data["text"]
+        if text == "INVALID_INPUT":
+            raise ValidationError("Invalid input")
+        return text
+
+    def save(self):
+        pass
+
 
 class PetForm(forms.ModelForm):
     class Meta:
@@ -59,6 +70,68 @@ def test_mutation_error_camelcased():
     graphene_settings.CAMELCASE_ERRORS = False
 
 
+class MockQuery(ObjectType):
+    a = String()
+
+
+class FormMutationTests(TestCase):
+    def test_form_invalid_form(self):
+        class MyMutation(DjangoFormMutation):
+            class Meta:
+                form_class = MyForm
+
+        class Mutation(ObjectType):
+            my_mutation = MyMutation.Field()
+
+        schema = Schema(query=MockQuery, mutation=Mutation)
+
+        result = schema.execute(
+            """ mutation MyMutation {
+                myMutation(input: { text: "INVALID_INPUT" }) {
+                    errors {
+                        field
+                        messages
+                    }
+                    text
+                }
+            }
+            """
+        )
+
+        self.assertIs(result.errors, None)
+        self.assertEqual(
+            result.data["myMutation"]["errors"],
+            [{"field": "text", "messages": ["Invalid input"]}],
+        )
+
+    def test_form_valid_input(self):
+        class MyMutation(DjangoFormMutation):
+            class Meta:
+                form_class = MyForm
+
+        class Mutation(ObjectType):
+            my_mutation = MyMutation.Field()
+
+        schema = Schema(query=MockQuery, mutation=Mutation)
+
+        result = schema.execute(
+            """ mutation MyMutation {
+                myMutation(input: { text: "VALID_INPUT" }) {
+                    errors {
+                        field
+                        messages
+                    }
+                    text
+                }
+            }
+            """
+        )
+
+        self.assertIs(result.errors, None)
+        self.assertEqual(result.data["myMutation"]["errors"], [])
+        self.assertEqual(result.data["myMutation"]["text"], "VALID_INPUT")
+
+
 class ModelFormMutationTests(TestCase):
     def test_default_meta_fields(self):
         class PetMutation(DjangoModelFormMutation):