More tests for Part

- barcode
- category_path

InvenTree/part/fixtures/part.yaml

@@ -36,4 +36,10 @@
   fields:
     name: 'Widget'
     description: 'A watchamacallit'
-    category: 7
+    category: 7
+
+- model: part.part
+  fields:
+    name: 'Orphan'
+    description: 'A part without a category'
+    category: null

InvenTree/part/models.py

@@ -217,6 +217,9 @@ class Part(models.Model):
             "Part",
             self.id,
             reverse('api-part-detail', kwargs={'pk': self.id}),
+            {
+                'name': self.name,
+            }
         )
 
     class Meta:

InvenTree/part/test_part.py

@@ -28,6 +28,10 @@ class SimplePartTest(TestCase):
     def test_category(self):
         self.assertEqual(str(self.C1.category), 'Electronics/Capacitors')
 
+        orphan = Part.objects.get(name='Orphan')
+        self.assertIsNone(orphan.category)
+        self.assertEqual(orphan.category_path, '')
+
     def test_rename_img(self):
         img = rename_part_image(self.R1, 'hello.png')
         self.assertEqual(img, os.path.join('part_images', 'part_3_img.png'))
@@ -41,3 +45,8 @@ class SimplePartTest(TestCase):
         for r in res:
             self.assertEqual(r.total_stock, 0)
             self.assertEqual(r.available_stock, 0)
+
+    def test_barcode(self):
+        barcode = self.R1.format_barcode()
+        self.assertIn('InvenTree', barcode)
+        self.assertIn(self.R1.name, barcode)