feat: Use asynchandler library for handlers

test/unit/util/handlers/StatusBooleanHandler.test.ts

@@ -0,0 +1,26 @@
+import type { AsyncHandler } from 'asynchronous-handlers';
+import { StatusBooleanHandler } from '../../../../src/util/handlers/StatusBooleanHandler';
+
+describe('A StatusBooleanHandler', (): void => {
+  let handlers: jest.Mocked<AsyncHandler<string, boolean>>[];
+  let handler: StatusBooleanHandler<string>;
+
+  beforeEach(async(): Promise<void> => {
+    handlers = [
+      {
+        canHandle: jest.fn(),
+        handle: jest.fn().mockResolvedValue(false),
+      } satisfies Partial<AsyncHandler<string, boolean>> as any,
+      {
+        canHandle: jest.fn(),
+        handle: jest.fn().mockResolvedValue(true),
+      } satisfies Partial<AsyncHandler<string, boolean>> as any,
+    ];
+
+    handler = new StatusBooleanHandler(handlers);
+  });
+
+  it('returns true if one of the handlers returns true.', async(): Promise<void> => {
+    await expect(handler.handleSafe('input')).resolves.toBe(true);
+  });
+});