import 'package:flutter_test/flutter_test.dart'; Matcher isSameDateAs(DateTime targetDate) => _IsSameDateAs(targetDate: targetDate); class _IsSameDateAs extends Matcher { const _IsSameDateAs({required this.targetDate}); final DateTime targetDate; @override bool matches(covariant DateTime date, Map matchState) => date.year == targetDate.year && date.month == targetDate.month && date.day == targetDate.day && date.hour == targetDate.hour && date.minute == targetDate.minute && date.second == targetDate.second; @override Description describe(Description description) => description.add('is same date as $targetDate'); }