Add check-leaks make target (#3837)

Makefile

@@ -40,6 +40,9 @@ test: npm
 test-full-battery: npm
 	cd dist/build/uBlock0.npm && npm run test-full-battery
 
+check-leaks: npm
+	cd dist/build/uBlock0.npm && npm run check-leaks
+
 dist/build/uBlock0.dig: tools/make-nodejs.sh $(sources) $(platform) $(assets)
 	tools/make-dig.sh
 

platform/npm/package.json

@@ -8,7 +8,8 @@
     "build": "node build.js",
     "lint": "eslint js/ *.js tests/*.js",
     "test": "c8 --include=index.js --include=js/**/*.js node test.js --mocha",
-    "test-full-battery": "c8 --include=index.js --include=js/**/*.js node test.js --mocha --full-battery"
+    "test-full-battery": "c8 --include=index.js --include=js/**/*.js node test.js --mocha --full-battery",
+    "check-leaks": "mocha --check-leaks tests/leaks.js"
   },
   "repository": {
     "type": "git",

platform/npm/tests/leaks.js

@@ -0,0 +1,30 @@
+/*******************************************************************************
+
+    uBlock Origin - a browser extension to block requests.
+    Copyright (C) 2014-present Raymond Hill
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see {http://www.gnu.org/licenses/}.
+
+    Home: https://github.com/gorhill/uBlock
+*/
+
+'use strict';
+
+/******************************************************************************/
+
+describe('Leaks', () => {
+    it('should not leak', async () => {
+        await import('../index.js');
+    });
+});

platform/npm/tests/wasm.js

@@ -19,6 +19,8 @@
     Home: https://github.com/gorhill/uBlock
 */
 
+/* globals WebAssembly */
+
 'use strict';
 
 /******************************************************************************/