More fixes and unit tests

InvenTree/InvenTree/api_version.py

@@ -11,6 +11,7 @@ Increment this API version number whenever there is a significant change to the
 
 v47 -> 2022-05-10 : https://github.com/inventree/InvenTree/pull/2964
     - Fixes barcode API error response when scanning a StockItem which does not exist
+    - Fixes barcode API error response when scanning a StockLocation which does not exist
 
 v46 -> 2022-05-09
     - Fixes read permissions on settings API

InvenTree/barcodes/plugins/inventree_barcode.py

@@ -111,7 +111,7 @@ class InvenTreeBarcodePlugin(BarcodePlugin):
                     loc = StockLocation.objects.get(pk=pk)
                     return loc
                 except (ValueError, StockLocation.DoesNotExist):  # pragma: no cover
-                    raise ValidationError({k, "Stock location does not exist"})
+                    raise ValidationError({k: "Stock location does not exist"})
 
         return None
 
@@ -132,12 +132,12 @@ class InvenTreeBarcodePlugin(BarcodePlugin):
                     try:
                         pk = self.data[k]['id']
                     except (AttributeError, KeyError):
-                        raise ValidationError({k, 'id parameter not supplied'})
+                        raise ValidationError({k: 'id parameter not supplied'})
 
                 try:
                     part = Part.objects.get(pk=pk)
                     return part
                 except (ValueError, Part.DoesNotExist):  # pragma: no cover
-                    raise ValidationError({k, 'Part does not exist'})
+                    raise ValidationError({k: 'Part does not exist'})
 
         return None

InvenTree/barcodes/tests.py

@@ -86,6 +86,23 @@ class BarcodeAPITest(APITestCase):
         self.assertIn('barcode_data', response.data)
         self.assertEqual(response.data['part']['pk'], 1)
 
+    def test_invalid_part(self):
+        """Test response for invalid part"""
+        response = self.client.post(
+            self.scan_url,
+            {
+                'barcode': {
+                    'part': 999999999,
+                }
+            },
+            format='json'
+        )
+
+        self.assertEqual(response.status_code, 400)
+
+        self.assertEqual(response.data['part'], 'Part does not exist')
+
+
     def test_find_stock_item(self):
         """
         Test that we can lookup a stock item based on ID
@@ -143,6 +160,23 @@ class BarcodeAPITest(APITestCase):
         self.assertIn('barcode_data', response.data)
         self.assertEqual(response.data['stocklocation']['pk'], 1)
 
+    def test_invalid_location(self):
+        """Test response for an invalid location"""
+
+        response = self.client.post(
+            self.scan_url,
+            {
+                'barcode': {
+                    'stocklocation': 999999999,
+                }
+            },
+            format='json'
+        )
+
+        self.assertEqual(response.status_code, 400)
+
+        self.assertEqual(response.data['stocklocation'], 'Stock location does not exist')
+
     def test_integer_barcode(self):
 
         response = self.postBarcode(self.scan_url, '123456789')