Add test case

Author: fbeutel

gdshelpers/tests/test_chip.py

@@ -145,3 +145,16 @@ def test_frame(self):
 
         cell.add_frame(padding=10, line_width=1., frame_layer=99, bounds=(0, 0, 2, 3))
         self.assertEqual(cell.get_bounds(layers=[99]), (-11, -11, 13, 14))
+
+    def test_desc(self):
+        cell = Cell("desctest")
+        c1 = Cell("child1")
+        c1.add_to_desc("foo", 123)
+        cell.add_cell(c1, origin=(0, 0))
+        cell.add_cell(c1, origin=(100, 0), angle=2)
+
+        d = cell.get_desc()
+        self.assertTrue("child1" in d["cells"])
+        self.assertTrue("desctest" in d["cells"])
+        self.assertEqual("desctest", d["root"])
+        self.assertEqual(2, len(d["cells"]["desctest"]["cells"]))