Migrate browser code and tests to strict TypeScript

1 files changed, 65 insertions, 0 deletions

diff --git a/tests/browser-support.ts b/tests/browser-support.ts
new file mode 100644
index 0000000..223b2b8
--- /dev/null
+++ b/tests/browser-support.ts
@@ -0,0 +1,65 @@
+// Copyright (C) 2026 Doan Luu Duc Tai <doan@luuduct.ai>
+//
+// This program 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.
+//
+// This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
+
+import assert from 'node:assert/strict';
+import type { Server } from 'node:http';
+
+export function required<T>(value: T | undefined | null, message: string): T {
+    assert.ok(value !== undefined && value !== null, message);
+    return value;
+}
+
+function isRecord(value: unknown): value is Record<string, unknown> {
+    return typeof value === 'object' && value !== null && !Array.isArray(value);
+}
+
+export function record(value: unknown): Record<string, unknown> {
+    assert.ok(isRecord(value));
+    return value;
+}
+
+export function string(value: unknown): string {
+    assert.equal(typeof value, 'string');
+    if (typeof value !== 'string') throw new Error('Expected string');
+    return value;
+}
+
+export function list(value: unknown): unknown[] {
+    assert.ok(Array.isArray(value));
+    return value;
+}
+
+export function serverOrigin(server: Server): string {
+    const address = server.address();
+    assert.ok(address && typeof address !== 'string');
+    return `http://127.0.0.1:${address.port}`;
+}
+
+export function requestBody(text: string): { op: string; count: number; [key: string]: unknown } {
+    const value = record(JSON.parse(text));
+    return { ...value, op: string(value['op']), count: typeof value['count'] === 'number' ? value['count'] : 0 };
+}
+
+export function libreJSAddon(text: string): { active: boolean; version: string } {
+    const addon = list(record(JSON.parse(text))['addons']).map(record).find(value => value['id'] === 'jid1-KtlZuoiikVfFew@jetpack');
+    assert.ok(addon);
+    assert.equal(addon['active'], true);
+    return { active: true, version: string(addon['version']) };
+}
+
+declare global {
+    interface Window { unlicensedControl?: boolean; chatInjection?: boolean }
+    const wasm: Promise<ArrayBuffer>;
+}