fix(tests): contain RUNE_MEMORY_DIR leak in openai_compat transport test — dichotomy wave

scripts/gen_time_awareness_truth.py

@@ -90,7 +90,14 @@ def iso_of(us):
 
 BASE_US = us_of(datetime(2026, 10, 11, 12, 0, 0, 123456, tzinfo=timezone.utc))
 HOUR_US = 3600 * 1_000_000
-MEM_FILE = os.path.join("/tmp/ta_truth_memory", "time_awareness.json")
+
+
+def _mem_file():
+    """The singleton's default storage path, resolved at op time — other
+    tests may repoint RUNE_MEMORY_DIR mid-session (env hygiene leaks)."""
+    import memory_env
+
+    return os.path.join(memory_env.memory_dir(), "time_awareness.json")
 
 
 def state_obs(instance):
@@ -191,12 +198,13 @@ class Driver:
                 "file": file_obs(self.instance.storage_path),
             }
         if kind == "mod_ctx" or kind == "mod_status" or kind == "mod_parse":
+            mem_file = _mem_file()
             seed = op.get("seed_file")
             if seed is None:
-                if os.path.exists(MEM_FILE):
-                    os.remove(MEM_FILE)
+                if os.path.exists(mem_file):
+                    os.remove(mem_file)
             else:
-                with open(MEM_FILE, "w") as f:
+                with open(mem_file, "w") as f:
                     f.write(seed)
             ta._time_awareness = None
             if kind == "mod_ctx":
@@ -208,7 +216,7 @@ class Driver:
             inst = ta._time_awareness
             ob = {"result": r, "state": state_obs(inst)}
             if kind == "mod_ctx":
-                ob["file"] = file_obs(MEM_FILE)
+                ob["file"] = file_obs(mem_file)
             return ob
         if kind == "cli":
             import contextlib

tests/test_openai_compat_transport.py

@@ -135,8 +135,22 @@ class TestTransportSelection:
         sys.path.insert(0, str(ROOT / "src"))
         os.environ["MIMO_PROBE_ENABLED"] = "0"
         # Journal edges resolve via memory_env; on CI the real memory dir is
-        # root-owned (PermissionError on events.jsonl). Isolate first.
+        # root-owned (PermissionError on events.jsonl). Isolate first — and
+        # RESTORE after: a leaked RUNE_MEMORY_DIR re-homes every later
+        # test's default-path singleton (bit the time_awareness port tests).
+        saved_mem_dir = os.environ.get("RUNE_MEMORY_DIR")
         os.environ["RUNE_MEMORY_DIR"] = os.path.join(tempfile.mkdtemp(), "memory")
+        try:
+            self._run_pinned_cloud_selection()
+        finally:
+            if saved_mem_dir is None:
+                os.environ.pop("RUNE_MEMORY_DIR", None)
+            else:
+                os.environ["RUNE_MEMORY_DIR"] = saved_mem_dir
+
+    def _run_pinned_cloud_selection(self):
+        import os
+        from unittest import mock
         from rune import rune_operator
         from rune.local_tool_runtime import OllamaChatTransport