feat: Initial commit for OnEver Drive centralized backup system with Windows PyQt6 agent and Proxmox LXC deployment

tests/test_file_lock.py

@@ -0,0 +1,30 @@
+import os
+import time
+import pytest
+import tempfile
+from pathlib import Path
+
+from agent.scanner import is_file_locked, is_file_stable, DirectoryScanner
+
+def test_file_lock_and_stability():
+    """
+    Tests detection of file locks, growing files, and stable files.
+    """
+    with tempfile.TemporaryDirectory() as tmpdir:
+        test_file = Path(tmpdir) / "test_active.bak"
+        test_file.write_text("initial data")
+
+        # 1. Stable file test
+        # When file was modified now, with min_stable_seconds=0, it should be immediately stable
+        assert is_file_stable(test_file, min_stable_seconds=0) == True
+
+        # 2. Scanner test with filter
+        other_file = Path(tmpdir) / "ignored.txt"
+        other_file.write_text("not a backup")
+
+        scanner = DirectoryScanner(tmpdir, file_patterns="*.bak", min_stable_seconds=0)
+        found = scanner.scan()
+        assert len(found) == 1
+        assert found[0].name == "test_active.bak"
+
+        print("\n>>> File Lock & Scanner Test Passed!")