Squash Odysseus development history

tests/test_tab_stream_rejoin_static.py

@@ -0,0 +1,52 @@
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parents[1]
+CHAT = (ROOT / "static/js/chat.js").read_text()
+
+
+def _visibility_handler() -> str:
+    start = CHAT.index("document.addEventListener('visibilitychange', () => {")
+    end = CHAT.index("// On mobile, fade out welcome text", start)
+    return CHAT[start:end]
+
+
+def test_tab_return_never_aborts_the_detached_run():
+    handler = _visibility_handler()
+    assert "_probeStaleLocalStream()" in handler
+    assert ".abort()" not in handler
+    assert "_activeStreams.delete" not in handler
+    assert "updateSubmitButton('idle'" not in handler
+
+
+def test_backend_authoritative_replay_path_remains_enabled():
+    assert "export async function resumeStream(sessionId" in CHAT
+    assert "/api/chat/resume/${sessionId}" in CHAT
+
+
+def test_local_background_marker_does_not_block_server_rejoin():
+    active_check = CHAT.split("function hasActiveStream", 1)[1].split("function _getForegroundStreamState", 1)[0]
+    detach = CHAT.split("export function detachCurrentStream", 1)[1].split(
+        "export async function resumeStream", 1
+    )[0]
+    background = CHAT.split("export function checkBackgroundStream", 1)[1].split(
+        "function _markCompactPre", 1
+    )[0]
+
+    assert "_backgroundStreams.has(sessionId)" not in active_check
+    assert "active.abortCtrl._reason = 'detach'" in detach
+    assert "_activeStreams.delete(sessionId)" in detach
+    assert "active.abortCtrl.abort()" in detach
+    assert "Response streaming in background" not in background
+
+
+def test_rejoined_stream_restores_stop_control_and_structured_events():
+    resume = CHAT.split("export async function resumeStream", 1)[1].split(
+        "export function checkBackgroundStream", 1
+    )[0]
+
+    assert "updateSubmitButton('streaming', submitBtn)" in resume
+    assert "startReplayTool(json)" in resume
+    assert "finishReplayTool(json)" in resume
+    assert "startReplayRound()" in resume
+    assert "markdownModule.processWithThinking" in resume