test: add unit tests for core, parser and operations

tests/test_permissions.py

@@ -0,0 +1,35 @@
+from __future__ import annotations
+
+from pathlib import Path
+
+from sshctl.export.permissions import check_permissions, fix_ssh_permissions
+
+
+def test_check_permissions_ok(tmp_path: Path) -> None:
+    ssh_dir = tmp_path / ".ssh"
+    ssh_dir.mkdir(mode=0o700)
+    (ssh_dir / "config").write_text("Host test\n", encoding="utf-8")
+    (ssh_dir / "config").chmod(0o600)
+    (ssh_dir / "keys.p").mkdir(mode=0o700)
+    (ssh_dir / "keys.p" / "key.pub").write_text("ssh-ed25519 AAA...")
+    (ssh_dir / "keys.p" / "key.pub").chmod(0o644)
+
+    issues = check_permissions(ssh_dir)
+    total = sum(len(v) for v in issues.values())
+    assert total == 0
+
+
+def test_fix_permissions(tmp_path: Path) -> None:
+    ssh_dir = tmp_path / ".ssh"
+    ssh_dir.mkdir(mode=0o755)
+    (ssh_dir / "config").write_text("Host test\n", encoding="utf-8")
+    (ssh_dir / "config").chmod(0o644)
+    (ssh_dir / "id_rsa").write_text("private key data")
+    (ssh_dir / "id_rsa").chmod(0o644)
+
+    counts = fix_ssh_permissions(ssh_dir)
+    assert counts["dirs"] >= 1
+    assert counts["private"] >= 1
+
+    assert (ssh_dir / "config").stat().st_mode & 0o777 == 0o600
+    assert (ssh_dir / "id_rsa").stat().st_mode & 0o777 == 0o600