support task-selectable SIP trunks

tests/test_deployment.py

@@ -308,6 +308,37 @@ class AsteriskTests(unittest.TestCase):
         self.assertIn("context=deny-inbound", files["pjsip.conf"])
         self.assertIn("strictrtp=yes", files["rtp.conf"])
 
+    def test_renders_arbitrary_task_selectable_trunks(self):
+        cfg = self.cfg()
+        cfg.pop("primary")
+        cfg.pop("backup")
+        cfg["trunks"] = [
+            {
+                "trunk_id": "provider-first",
+                "host": "61.132.228.221",
+                "auth_mode": "ip",
+                "caller_id": "BD93205882",
+                "codec_profile": {"allowed": ["PCMA"], "preferred": "PCMA"},
+            },
+            {
+                "trunk_id": "provider-second",
+                "host": "60.171.24.90",
+                "auth_mode": "ip",
+                "codec_profile": {"allowed": ["PCMA"], "preferred": "PCMA"},
+            },
+            {
+                "trunk_id": "provider-third",
+                "host": "160.202.254.79",
+                "auth_mode": "ip",
+                "codec_profile": {"allowed": ["PCMA"], "preferred": "PCMA"},
+            },
+        ]
+        files = ast.render(cfg, {"ARI_PASSWORD": "x" * 32})
+        for trunk_id in ("provider-first", "provider-second", "provider-third"):
+            self.assertIn(f"[{trunk_id}]", files["pjsip.conf"])
+        self.assertNotIn("provider-backup", files["pjsip.conf"])
+        self.assertIn("PJSIP/${EXTEN}@provider-first", files["extensions.conf"])
+
     def test_preserves_explicit_caller_mapping(self):
         cfg = self.cfg()
         cfg["primary"].update(