fix(post-install): run fwbr udev rule after systemd

AppImage/scripts/tests/test_fwbr_udev_rule_order.py

@@ -0,0 +1,49 @@
+import unittest
+from pathlib import Path
+
+
+REPO_ROOT = Path(__file__).resolve().parents[3]
+AUTO_POST_INSTALL = REPO_ROOT / "scripts/post_install/auto_post_install.sh"
+CUSTOM_POST_INSTALL = REPO_ROOT / "scripts/post_install/customizable_post_install.sh"
+UNINSTALL_TOOLS = REPO_ROOT / "scripts/post_install/uninstall-tools.sh"
+
+OLD_RULE = "99-proxmenux-fwbr-tune.rules"
+NEW_RULE = "99-zz-proxmenux-fwbr-tune.rules"
+SYSTEMD_RULE = "99-systemd.rules"
+
+
+def network_optimization_block(path: Path) -> str:
+    source = path.read_text()
+    start = source.index("apply_network_optimizations()")
+    end = source.index('register_tool "network_optimization"', start)
+    return source[start:end]
+
+
+class FwbrUdevRuleOrderTests(unittest.TestCase):
+    def test_new_rule_sorts_after_systemd_rule(self):
+        self.assertGreater(NEW_RULE, SYSTEMD_RULE)
+
+    def test_auto_post_install_uses_late_rule_and_removes_legacy_rule(self):
+        source = network_optimization_block(AUTO_POST_INSTALL)
+        self.assertIn('local FUNC_VERSION="1.2"', source)
+        self.assertIn(f"rm -f /etc/udev/rules.d/{OLD_RULE}", source)
+        self.assertIn(f"cat > /etc/udev/rules.d/{NEW_RULE}", source)
+        self.assertIn(f"chmod 0644 /etc/udev/rules.d/{NEW_RULE}", source)
+        self.assertNotIn(f"cat > /etc/udev/rules.d/{OLD_RULE}", source)
+
+    def test_customizable_post_install_uses_late_rule_and_removes_legacy_rule(self):
+        source = network_optimization_block(CUSTOM_POST_INSTALL)
+        self.assertIn('local FUNC_VERSION="1.2"', source)
+        self.assertIn(f"rm -f /etc/udev/rules.d/{OLD_RULE}", source)
+        self.assertIn(f"cat > /etc/udev/rules.d/{NEW_RULE}", source)
+        self.assertIn(f"chmod 0644 /etc/udev/rules.d/{NEW_RULE}", source)
+        self.assertNotIn(f"cat > /etc/udev/rules.d/{OLD_RULE}", source)
+
+    def test_uninstall_removes_new_and_legacy_rule_names(self):
+        source = UNINSTALL_TOOLS.read_text()
+        self.assertIn(f"/etc/udev/rules.d/{OLD_RULE}", source)
+        self.assertIn(f"/etc/udev/rules.d/{NEW_RULE}", source)
+
+
+if __name__ == "__main__":
+    unittest.main()