isEmpty())->toBeTrue(); expect($data->toArray())->toBe([]); }); it('creates from array', function () { $data = ActionResultData::fromArray(['user_id' => 123, 'email' => 'test@example.com']); expect($data->isEmpty())->toBeFalse(); expect($data->toArray())->toBe(['user_id' => 123, 'email' => 'test@example.com']); }); it('adds values immutably', function () { $data = ActionResultData::empty(); $updated = $data->with('status', 'success'); expect($data->has('status'))->toBeFalse(); expect($updated->has('status'))->toBeTrue(); expect($updated->get('status'))->toBe('success'); }); it('retrieves values with defaults', function () { $data = ActionResultData::fromArray(['status' => 'success']); expect($data->get('status'))->toBe('success'); expect($data->get('missing', 'default'))->toBe('default'); }); it('merges data', function () { $data1 = ActionResultData::fromArray(['user_id' => 123]); $data2 = ActionResultData::fromArray(['email' => 'test@example.com']); $merged = $data1->merge($data2); expect($merged->toArray())->toBe([ 'user_id' => 123, 'email' => 'test@example.com', ]); }); it('checks key existence', function () { $data = ActionResultData::fromArray(['user_id' => 123]); expect($data->has('user_id'))->toBeTrue(); expect($data->has('missing'))->toBeFalse(); }); });