test: read the WebRTC transport's source as a set of files

Source-reading tests take their text from node_source (node) and node_tree
(hub): webrtc_server.py plus anything under transport/webrtc/, so a check
for something's absence keeps reading the code it guards if that code moves.
test_node_source_scope holds the boundary.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 3 insertions, 6 deletions

diff --git a/packages/meshbay-hub/tests/test_video_seek.py b/packages/meshbay-hub/tests/test_video_seek.py
index 85e774d..665970d 100644
--- a/packages/meshbay-hub/tests/test_video_seek.py
+++ b/packages/meshbay-hub/tests/test_video_seek.py
@@ -33,13 +33,12 @@ import re
 import shutil
 from pathlib import Path
 
+import node_tree
 import pytest
 
 STATIC = Path(__file__).resolve().parents[1] / "src" / "meshbay_hub" / "static"
 APP = STATIC / "video-player.js"
 TRANSPORT = STATIC / "transport.js"
-NODE_SERVER = (Path(__file__).resolve().parents[2] / "meshbay-node" / "src"
-               / "meshbay_node" / "transport" / "webrtc_server.py")
 
 pytestmark = pytest.mark.skipif(not APP.exists(), reason="SPA sources unavailable")
 
@@ -59,11 +58,9 @@ def _player(app: str) -> str:
 
 @pytest.fixture(scope="module")
 def stream_fn():
-    if not NODE_SERVER.exists():
+    if not node_tree.available():
         pytest.skip("node sources unavailable")
-    text = NODE_SERVER.read_text()
-    i = text.index("async def _stream_video_inner")
-    return text[i:text.index("\n    async def ", i + 1)]
+    return node_tree.method("_stream_video_inner")
 
 
 def test_the_seek_is_an_index_lookup_not_a_decode(stream_fn):