Squash Odysseus development history

tests/test_session_stream_polling_static.py

@@ -0,0 +1,23 @@
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parents[1]
+
+
+def test_missing_stream_checks_are_coalesced_and_negatively_cached():
+    source = (ROOT / "static/js/sessions.js").read_text(encoding="utf-8")
+
+    assert "const _serverStreamChecksInFlight = new Set();" in source
+    assert "const _serverStreamAbsentUntil = new Map();" in source
+    assert "_serverStreamChecksInFlight.has(sessionId)" in source
+    assert "res.status === 404" in source
+    assert "Date.now() + SERVER_STREAM_ABSENT_TTL_MS" in source
+    assert "_serverStreamChecksInFlight.delete(sessionId);" in source
+
+
+def test_starting_a_stream_invalidates_the_negative_cache():
+    source = (ROOT / "static/js/sessions.js").read_text(encoding="utf-8")
+    start = source.index("export function markStreaming(sessionId)")
+    body = source[start : start + 300]
+
+    assert "_serverStreamAbsentUntil.delete(sessionId);" in body