Parametrize Multipeer QE tests to run mixed-mode testing

client/src/cbltest/api/multipeer_replicator_types.py

@@ -33,6 +33,40 @@ def to_json(self) -> list[str]:
             if m.value != 0 and (m.value & (m.value - 1)) == 0 and (self & m) == m
         ]
 
+    @classmethod
+    def build_group_transports(
+        cls,
+        size: int,
+        transport: str,
+    ) -> list["MultipeerTransportType"]:
+        """
+        Builds a list of transports for a group of given size.
+
+        If transport != "MIXED_MODE", returns a uniform list.
+        If MIXED_MODE, distributes WIFI, BLUETOOTH, and ALL.
+        """
+
+        # Non-mixed mode → uniform assignment
+        if transport != "MIXED_MODE":
+            return [cls.from_string(transport)] * size
+
+        if size == 1:
+            return [cls.ALL]
+
+        if size == 2:
+            return [cls.BLUETOOTH, cls.ALL]
+
+        # General distribution
+        num_wifi = size // 3
+        num_bt = size // 3
+        num_dual = size - num_wifi - num_bt
+
+        transports_array = (
+            [cls.WIFI] * num_wifi + [cls.BLUETOOTH] * num_bt + [cls.ALL] * num_dual
+        )
+
+        return transports_array
+
 
 class MultipeerReplicatorAuthenticator(JSONSerializable):
     """

client/src/cbltest/response_types.py

@@ -10,7 +10,7 @@
     ReplicatorDocumentEntry,
     ReplicatorProgress,
 )
-from cbltest.jsonhelper import _assert_string_entry, _get_typed
+from cbltest.jsonhelper import _assert_string_entry, _get_str_or_default, _get_typed
 
 
 class PostGetAllDocumentsEntry:
@@ -251,7 +251,7 @@ def __init__(self, body: dict):
 
         self.__peer_id = _assert_string_entry(body, self.__peer_id_key)
         self.__status = ReplicatorStatusBody(body.get(self.__status_key, {}))
-        transport_str = _assert_string_entry(body, self.__transport_key)
+        transport_str = _get_str_or_default(body, self.__transport_key, "WIFI")
         self.__transport = MultipeerTransportType.from_string(transport_str)