Add failing test or PositiveIntegerField

tests/models.py

@@ -2,6 +2,7 @@ from __future__ import unicode_literals
 
 import uuid
 
+from django.core.validators import MinValueValidator
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
 
@@ -88,3 +89,9 @@ class NullableOneToOneSource(RESTFrameworkModel):
     target = models.OneToOneField(
         OneToOneTarget, null=True, blank=True,
         related_name='nullable_source', on_delete=models.CASCADE)
+
+
+# min_value with PositiveIntegerField
+class MinValueItem(RESTFrameworkModel):
+    integer = models.IntegerField(validators=[MinValueValidator(0)])
+    positive_integer = models.PositiveIntegerField()

tests/test_serializer.py

@@ -9,6 +9,7 @@ import pytest
 from rest_framework import serializers
 from rest_framework.compat import unicode_repr
 
+from .models import MinValueItem
 from .utils import MockObject
 
 
@@ -69,6 +70,21 @@ class TestSerializer:
         assert serializer.errors == {'non_field_errors': ['No data provided']}
 
 
+class TestMinValueSerializer:
+    def setup(self):
+        class ExampleSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = MinValueItem
+                fields = ('integer', 'positive_integer')
+        self.serializer = ExampleSerializer()
+
+    def test_min_value_for_integer_field(self):
+        assert self.serializer['integer'].min_value == 0
+
+    def test_min_value_for_positive_integer_field(self):
+        assert self.serializer['positive_integer'].min_value == 0
+
+
 class TestValidateMethod:
     def test_non_field_error_validate_method(self):
         class ExampleSerializer(serializers.Serializer):