prevent deletion or suspension of system accounts

packages/backend/test/unit/misc/is-system-account.ts

@@ -0,0 +1,36 @@
+/*
+ * SPDX-FileCopyrightText: hazelnoot and other Sharkey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { isSystemAccount } from '@/misc/is-system-account.js';
+
+describe(isSystemAccount, () => {
+	it('should return true for instance.actor', () => {
+		expect(isSystemAccount({ username: 'instance.actor' })).toBeTruthy();
+	});
+
+	it('should return true for relay.actor', () => {
+		expect(isSystemAccount({ username: 'relay.actor' })).toBeTruthy();
+	});
+
+	it('should return true for any username with a dot', () => {
+		expect(isSystemAccount({ username: 'some.user' })).toBeTruthy();
+		expect(isSystemAccount({ username: 'some.' })).toBeTruthy();
+		expect(isSystemAccount({ username: '.user' })).toBeTruthy();
+		expect(isSystemAccount({ username: '.' })).toBeTruthy();
+	});
+
+	it('should return true for usernames with multiple dots', () => {
+		expect(isSystemAccount({ username: 'some.user.account' })).toBeTruthy();
+		expect(isSystemAccount({ username: '..' })).toBeTruthy();
+	});
+
+	it('should return false for usernames without a dot', () => {
+		expect(isSystemAccount({ username: 'instance_actor' })).toBeFalsy();
+		expect(isSystemAccount({ username: 'instanceactor' })).toBeFalsy();
+		expect(isSystemAccount({ username: 'relay_actor' })).toBeFalsy();
+		expect(isSystemAccount({ username: 'relayactor' })).toBeFalsy();
+		expect(isSystemAccount({ username: '' })).toBeFalsy();
+	});
+});