Rende robusta decodifica output robocopy

tests/test_backup.py

@@ -7,6 +7,7 @@ from bakrest.backup import (
     _build_robocopy_command,
     _build_rsync_command,
     _robocopy_destination_dir,
+    _run_command,
     _run_robocopy,
     _split_existing_files,
 )
@@ -146,7 +147,7 @@ def test_robocopy_marks_each_file_copied_after_all_destinations(
 
     pending_counts_after_commands: list[int] = []
 
-    def fake_run(command, capture_output, text, check):
+    def fake_run(command, **kwargs):
         pending_counts_after_commands.append(registry.pending_count())
         return subprocess.CompletedProcess(command, 0, stdout="", stderr="")
 
@@ -172,3 +173,19 @@ class _NullLogger:
 
     def exception(self, *args, **kwargs) -> None:
         pass
+
+
+def test_run_command_uses_lossy_utf8_decoding(monkeypatch) -> None:
+    calls = {}
+
+    def fake_run(*args, **kwargs):
+        calls.update(kwargs)
+        return subprocess.CompletedProcess(args[0], 0, stdout="", stderr="")
+
+    monkeypatch.setattr("bakrest.backup.subprocess.run", fake_run)
+
+    _run_command(["robocopy"])
+
+    assert calls["encoding"] == "utf-8"
+    assert calls["errors"] == "replace"
+    assert calls["text"] is True