diff --git a/tests/unit/test_plugin_xep_0320.py b/tests/unit/test_plugin_xep_0320.py
new file mode 100644
index 00000000..54026805
--- /dev/null
+++ b/tests/unit/test_plugin_xep_0320.py
@@ -0,0 +1,77 @@
+#!/usr/bin/env python3
+
+# Libervia: an XMPP client
+# Copyright (C) 2009-2023 Jérôme Poisson (goffi@goffi.org)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from twisted.words.xish import domish
+
+from sat.plugins.plugin_xep_0320 import NS_JINGLE_DTLS, XEP_0320
+from sat.tools import xml_tools
+
+
+class TestXEP0320:
+    def test_parse_transport_trigger(self, host):
+        """<transport> element is parsed correctly in trigger"""
+        xep_0320 = XEP_0320(host)
+
+        transport_elt = xml_tools.parse(
+            f"<transport><fingerprint xmlns='{NS_JINGLE_DTLS}' hash='sha-256' "
+            "setup='active'>6D:8F:6A:53:A3:7E:10:B2:58:16:AB:A3:92:6F:8A:5B:2D:55:1C:FB:"
+            "2F:E3:6E:94:FE:4F:4E:FE:D4:77:49:B6</fingerprint></transport>"
+        )
+
+        ice_data = {}
+        result = xep_0320._parse_transport_trigger(transport_elt, ice_data)
+
+        expected_ice_data = {
+            "fingerprint": {
+                "hash": "sha-256",
+                "setup": "active",
+                "fingerprint":
+                "6D:8F:6A:53:A3:7E:10:B2:58:16:AB:A3:92:6F:8A:5B:2D:55:1C:"
+                "FB:2F:E3:6E:94:FE:4F:4E:FE:D4:77:49:B6",
+            },
+        }
+
+        assert ice_data == expected_ice_data
+        assert result
+
+    def test_build_transport(self, host):
+        """<transport> element is buid correctly in trigger"""
+        xep_0320 = XEP_0320(host)
+
+        transport_elt = domish.Element((None, "transport"))
+
+        ice_data = {
+            "fingerprint": {
+                "hash": "sha-256",
+                "setup": "active",
+                "fingerprint":
+                "6D:8F:6A:53:A3:7E:10:B2:58:16:AB:A3:92:6F:8A:5B:2D:55:1C:"
+                "FB:2F:E3:6E:94:FE:4F:4E:FE:D4:77:49:B6",
+            },
+        }
+
+        result = xep_0320._build_transport_trigger(transport_elt, ice_data)
+
+        expected_transport_elt = xml_tools.parse(
+            f"<transport><fingerprint xmlns='{NS_JINGLE_DTLS}' hash='sha-256' "
+            "setup='active'>6D:8F:6A:53:A3:7E:10:B2:58:16:AB:A3:92:6F:8A:5B:2D:55:1C:FB:"
+            "2F:E3:6E:94:FE:4F:4E:FE:D4:77:49:B6</fingerprint></transport>"""
+        )
+
+        assert transport_elt.toXml() == expected_transport_elt.toXml()
+        assert result