barcode / InvenTreePugin test errors

InvenTree/barcodes/tests.py

@@ -214,3 +214,48 @@ class BarcodeAPITest(APITestCase):
 
         self.assertIn('error', data)
         self.assertNotIn('success', data)
+
+
+class TestInvenTreeBarcode(APITestCase):
+
+    fixtures = [
+        'category',
+        'part',
+        'location',
+        'stock'
+    ]
+
+    def setUp(self):
+        # Create a user for auth
+        user = get_user_model()
+        user.objects.create_user('testuser', 'test@testing.com', 'password')
+
+        self.client.login(username='testuser', password='password')
+
+    def test_errors(self):
+        """
+        Test that a barcode can be associated with a StockItem
+        """
+
+        def test_assert_error(barcode_data):
+            response = self.client.post(
+                reverse('api-barcode-link'), format='json',
+                data={
+                    'barcode': barcode_data,
+                    'stockitem': 522
+                }
+            )
+            self.assertEqual(response.status_code, status.HTTP_200_OK)
+            self.assertIn('error', response.data)
+
+        # test with already existing stock
+        test_assert_error('{"stockitem": 522}')
+
+        # test with already existing stock location
+        test_assert_error('{"stocklocation": 7}')
+
+        # test with already existing part location
+        test_assert_error('{"part": 10004}')
+
+        # test with hash
+        test_assert_error('{"blbla": 10004}')