feat: add more tests to improve coverage

Author: Mikhus

test/IMessageQueue.EventEmitter.spec.ts

@@ -0,0 +1,41 @@
+/*!
+ * I'm Queue Software Project
+ * Copyright (C) 2025  imqueue.com <[email protected]>
+ *
+ * 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 <https://www.gnu.org/licenses/>.
+ *
+ * If you want to use this code in a closed source (commercial) project, you can
+ * purchase a proprietary commercial license. Please contact us at
+ * <[email protected]> to get commercial licensing options.
+ */
+import './mocks';
+import { expect } from 'chai';
+import { EventEmitter as IMQEventEmitter } from '../src';
+import { EventEmitter as NodeEventEmitter } from 'events';
+
+// This test ensures the re-exported EventEmitter from IMessageQueue.ts is exercised
+// to cover the function counted by nyc/istanbul for that re-export.
+describe('IMessageQueue EventEmitter re-export', () => {
+    it('should re-export Node.js EventEmitter and be usable', () => {
+        // Ensure it is the same constructor
+        expect(IMQEventEmitter).to.equal(NodeEventEmitter);
+
+        // And it works as expected when instantiated
+        const ee = new IMQEventEmitter();
+        let called = 0;
+        ee.on('ping', () => { called++; });
+        ee.emit('ping');
+        expect(called).to.equal(1);
+    });
+});