Tests for rich logging, apply ruff formatting

tests/test_logging.py

@@ -2,7 +2,7 @@ import logging
 
 import pytest
 
-from kanta.logging import configure_logging, log_change, transaction_logger
+from kanta.logging import configure_logging, log_change
 
 
 @pytest.fixture(autouse=True)
@@ -46,3 +46,66 @@ def test_log_change_no_diff(capsys):
     log_change("test", {})
     captured = capsys.readouterr()
     assert "test" in captured.err
+
+
+def test_log_change_appends_extra_string(capsys):
+    kanta_logger = logging.getLogger("kanta")
+    kanta_logger.handlers.clear()
+    configure_logging()
+    log_change("export", {}, extra="mydb.db")
+    captured = capsys.readouterr()
+    assert "export" in captured.err
+    assert "mydb.db" in captured.err
+
+
+def test_log_change_headerfmt_replaces_header(capsys):
+    kanta_logger = logging.getLogger("kanta")
+    kanta_logger.handlers.clear()
+    configure_logging()
+    log_change(
+        "update",
+        {},
+        headerfmt=lambda action, user, extra: f"CUSTOM {action} {extra['id']}",
+        extra={"id": 7},
+    )
+    captured = capsys.readouterr()
+    assert "CUSTOM update 7" in captured.err
+
+
+def test_log_change_headerfmt_none_falls_back(capsys):
+    kanta_logger = logging.getLogger("kanta")
+    kanta_logger.handlers.clear()
+    configure_logging()
+    log_change("update", {}, user="alice", headerfmt=lambda *args: None)
+    captured = capsys.readouterr()
+    assert "update" in captured.err
+    assert "alice" in captured.err
+
+
+def test_log_change_log_diff_false(capsys):
+    kanta_logger = logging.getLogger("kanta")
+    kanta_logger.handlers.clear()
+    configure_logging()
+    log_change("update", {"counter": 5}, previous={}, log_diff=False)
+    captured = capsys.readouterr()
+    assert "update" in captured.err
+    assert "counter" not in captured.err
+
+
+def test_log_change_log_header_false(capsys):
+    kanta_logger = logging.getLogger("kanta")
+    kanta_logger.handlers.clear()
+    configure_logging()
+    log_change("update", {"counter": 5}, previous={}, log_header=False)
+    captured = capsys.readouterr()
+    assert "update" not in captured.err
+    assert "counter" in captured.err
+
+
+def test_log_change_both_disabled_logs_nothing(capsys):
+    kanta_logger = logging.getLogger("kanta")
+    kanta_logger.handlers.clear()
+    configure_logging()
+    log_change("update", {"counter": 5}, previous={}, log_header=False, log_diff=False)
+    captured = capsys.readouterr()
+    assert captured.err == ""