test: cover InfoLive.Show path decode branches + position fallback

test/aprsme_web/live/info_live/show_full_render_test.exs

@@ -479,5 +479,63 @@ defmodule AprsmeWeb.InfoLive.ShowFullRenderTest do
       Process.sleep(50)
       assert render(lv) =~ "BC1"
     end
+
+    test "fills in position from an earlier position-bearing packet when the latest has no lat/lon",
+         %{conn: conn} do
+      # Older packet with a position — this is what get_latest_position_packet
+      # should return.
+      _pos_packet =
+        packet_fixture(%{
+          sender: "POSFILL",
+          base_callsign: "POSFILL",
+          ssid: "0",
+          received_at: DateTime.add(DateTime.utc_now(), -60, :second),
+          lat: Decimal.new("33.0"),
+          lon: Decimal.new("-96.0"),
+          has_position: true,
+          path: "WIDE1-1"
+        })
+
+      # A newer, non-position packet — for example a status packet.
+      # Set lat/lon to nil so the latest packet lacks coordinates, forcing
+      # get_latest_packet to fall back via get_latest_position_packet.
+      _status_packet =
+        packet_fixture(%{
+          sender: "POSFILL",
+          base_callsign: "POSFILL",
+          ssid: "0",
+          received_at: DateTime.utc_now(),
+          lat: nil,
+          lon: nil,
+          has_position: false,
+          path: "WIDE1-1",
+          data_type: "status"
+        })
+
+      {:ok, _lv, html} = live(conn, ~p"/info/POSFILL", on_error: :warn)
+      assert html =~ "POSFILL"
+    end
+
+    test "renders a packet with an extended path exercising decode_wide/trace/relay/tcpip branches",
+         %{conn: conn} do
+      # Covers the rare-variant decode clauses: WIDE3-1, WIDE4-1, WIDE1-2,
+      # TRACE2-1 through TRACE7-1, RELAY-1, RELAY-2, TCPIP, TCPIP*, and a
+      # generic TRACE8-8 fallthrough that exercises the catch-all clauses.
+      _packet =
+        packet_fixture(%{
+          sender: "PATHZ",
+          base_callsign: "PATHZ",
+          ssid: "0",
+          received_at: DateTime.utc_now(),
+          lat: Decimal.new("33.0"),
+          lon: Decimal.new("-96.0"),
+          has_position: true,
+          path:
+            "WIDE3-1,WIDE4-1,WIDE5-1,WIDE6-1,WIDE7-1,WIDE1-2,WIDE2-2,TRACE2-1,TRACE3-1,TRACE4-1,TRACE5-1,TRACE6-1,TRACE7-1,TRACE8-8,RELAY-1,RELAY-2,RELAYX,TCPIP,TCPIP*,TCPIPX,qAC,T2TEXAS"
+        })
+
+      {:ok, _lv, html} = live(conn, ~p"/info/PATHZ", on_error: :warn)
+      assert html =~ "PATHZ"
+    end
   end
 end