refactor progress

packages/api/src/middleware/tests/IpBanMiddleware.test.tsx

@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2026 Fluxer Contributors
+ *
+ * This file is part of Fluxer.
+ *
+ * Fluxer is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Fluxer is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+import {ipBanCache} from '@fluxer/api/src/middleware/IpBanMiddleware';
+import {beforeEach, describe, expect, it} from 'vitest';
+
+beforeEach(() => {
+	ipBanCache.resetCaches();
+});
+
+describe('IpBanCache', () => {
+	it('blocks IPv4-mapped IPv6 when a single IPv4 address is banned', () => {
+		ipBanCache.ban('127.0.0.1');
+
+		expect(ipBanCache.isBanned('127.0.0.1')).toBe(true);
+		expect(ipBanCache.isBanned('::ffff:7f00:1')).toBe(true);
+	});
+
+	it('blocks IPv4-mapped IPv6 when an IPv4 range is banned', () => {
+		ipBanCache.ban('127.0.0.0/24');
+
+		expect(ipBanCache.isBanned('127.0.0.5')).toBe(true);
+		expect(ipBanCache.isBanned('::ffff:7f00:5')).toBe(true);
+	});
+
+	it('blocks IPv4 clients when the IPv4-mapped IPv6 range is banned', () => {
+		ipBanCache.ban('::ffff:0:0/96');
+
+		expect(ipBanCache.isBanned('::ffff:127.0.0.1')).toBe(true);
+		expect(ipBanCache.isBanned('127.0.0.1')).toBe(true);
+	});
+});