Include test name in TSV log filenames

Concept spec calls for `<testname>.tsv`. Filename is now
`<testname>-<station>-<ts>.tsv` so reruns of the same test name
don't clobber prior runs and multiple stations stay distinguishable.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

modjam/log.py

@@ -11,9 +11,10 @@ class TsvLogger:
     received: <ts> received <packet_id> <text>
     """
 
-    def __init__(self, station: str, log_dir: str | Path = "."):
+    def __init__(self, station: str, log_dir: str | Path = ".", test_name: str | None = None):
         Path(log_dir).mkdir(parents=True, exist_ok=True)
-        path = Path(log_dir) / f"{station}-{int(time())}.tsv"
+        prefix = f"{test_name}-{station}" if test_name else station
+        path = Path(log_dir) / f"{prefix}-{int(time())}.tsv"
         self._fh: IO = open(path, "a", buffering=1)  # line-buffered
         self.path = path
 

modjam/station.py

@@ -117,7 +117,11 @@ class TestStation:
         cues = cuesheet.build(cue_params)
         print(f"[run] {len(cues)} cases, ~{(cues[-1].done_at - base_t) / 3600:.2f}h, base_t={base_t}")
 
-        self._logger = TsvLogger(self.cfg.this_station_name, self.cfg.log_dir)
+        self._logger = TsvLogger(
+            self.cfg.this_station_name,
+            self.cfg.log_dir,
+            test_name=params["name"],
+        )
 
         try:
             for cue in cues:

tests/test_log.py

@@ -35,3 +35,16 @@ def test_tsv_logger_creates_log_dir(tmp_path):
     logger.close()
     assert sub.is_dir()
     assert logger.path.exists()
+
+
+def test_tsv_logger_filename_includes_test_name(tmp_path):
+    logger = TsvLogger("A", tmp_path, test_name="run42")
+    logger.close()
+    assert logger.path.name.startswith("run42-A-")
+    assert logger.path.name.endswith(".tsv")
+
+
+def test_tsv_logger_filename_without_test_name(tmp_path):
+    logger = TsvLogger("A", tmp_path)
+    logger.close()
+    assert logger.path.name.startswith("A-")