[IMP] subscription_oca: tests adjustments

Author: carolina-domatix

Diff for: subscription_oca/tests/test_subscription_oca.py

@@ -593,6 +593,16 @@ def test_x_subscription_oca_pricelist_related_2(self):
         res = self.sub_line.read(["discount"])
         self.assertEqual(res[0]["discount"], 0)
 
+    def test_compute_display_name(self):
+        stage = self.env['sale.subscription.stage'].create({
+            'name': 'Test Stage',
+            'type': 'pre',
+        })
+        self.assertEqual(stage.display_name, 'Test Stage', "display_name not computed")
+        stage.name = 'Updated Test Stage'
+        stage._compute_display_name()
+        self.assertEqual(stage.display_name, 'Updated Test Stage', "display_name not computed")
+
     def _collect_all_sub_test_results(self, subscription):
         test_res = []
         sale_order = subscription.create_sale_order()