Additional unit testing

Author: SchrodingersGat

test/test_build.py

@@ -12,7 +12,7 @@
 from test_api import InvenTreeTestCase  # noqa: E402
 
 from inventree.base import Attachment  # noqa: E402
-from inventree.build import Build  # noqa: E402
+from inventree.build import Build, BuildLine  # noqa: E402
 
 
 class BuildOrderTest(InvenTreeTestCase):
@@ -144,3 +144,16 @@ def test_build_complete(self):
         # Check status
         self.assertEqual(build.status, 40)
         self.assertEqual(build.status_text, 'Complete')
+
+    def test_build_lines(self):
+        """ Test retrieval of build line items. """
+
+        build = self.get_build()
+
+        lines = build.getLines()
+
+        self.assertGreater(len(lines), 0)
+
+        for line in lines:
+            self.assertEqual(line.build, build.pk)
+            self.assertIsInstance(line, BuildLine)