fix: Introducing initializers for handling lock cleanup on start

test/unit/init/final/FinalizableHandler.test.ts

@@ -0,0 +1,11 @@
+import { FinalizableHandler } from '../../../../src';
+
+describe('FinalizableHandler', (): void => {
+  const finalizable = { finalize: jest.fn() };
+  const finalizer = new FinalizableHandler(finalizable);
+
+  it('redirects handle towards finalize.', async(): Promise<void> => {
+    await finalizer.handleSafe();
+    expect(finalizable.finalize).toHaveBeenCalledTimes(1);
+  });
+});