Fix for remote harvest tmp dir

tests/test_package_hints.py

@@ -0,0 +1,70 @@
+from __future__ import annotations
+
+from enroll.package_hints import (
+    add_pkgs_from_etc_topdirs,
+    hint_names,
+    maybe_add_specific_paths,
+    package_section_from_installations,
+    role_id,
+    role_name_from_pkg,
+    role_name_from_unit,
+    safe_name,
+)
+
+
+class _Backend:
+    def __init__(self, *, fail: bool = False):
+        self.fail = fail
+
+    def specific_paths_for_hints(self, hints):
+        if self.fail:
+            raise RuntimeError("backend unavailable")
+        return [f"/backend/{h}" for h in sorted(hints)]
+
+
+def test_role_name_helpers_sanitise_reserved_and_odd_names():
+    assert safe_name("pkg.name+with-dash") == "pkg_name_with_dash"
+    assert role_id("123 Camel-Case!!") == "r_123_camel_case"
+    assert role_name_from_unit("class.service") == "class"
+    assert role_name_from_pkg("flatpak") == "package_flatpak"
+
+
+def test_package_section_from_installations_filters_empty_and_unspecified():
+    assert package_section_from_installations([]) is None
+    assert (
+        package_section_from_installations([{"section": "none"}, {"group": ""}]) is None
+    )
+    assert (
+        package_section_from_installations([{"section": "z-utils"}, {"group": "admin"}])
+        == "admin"
+    )
+
+
+def test_hint_names_expands_templates_packages_and_dot_prefixes():
+    assert hint_names("postgresql@14-main.service", {"postgresql.14"}) == {
+        "postgresql@14-main",
+        "postgresql",
+        "postgresql.14",
+    }
+
+
+def test_add_pkgs_from_etc_topdirs_skips_shared_dirs():
+    pkgs: set[str] = set()
+    add_pkgs_from_etc_topdirs(
+        {"ssh", "nginx"},
+        {"ssh": {"openssh-server"}, "nginx": {"nginx"}, "nginx.d": {"nginx-extra"}},
+        pkgs,
+    )
+    assert pkgs == {"nginx", "nginx-extra"}
+
+
+def test_maybe_add_specific_paths_uses_backend_and_fallback():
+    assert maybe_add_specific_paths({"a", "b"}, _Backend()) == [
+        "/backend/a",
+        "/backend/b",
+    ]
+    assert maybe_add_specific_paths({"svc"}, _Backend(fail=True)) == [
+        "/etc/default/svc",
+        "/etc/init.d/svc",
+        "/etc/sysctl.d/svc.conf",
+    ]