drift/moor/test/expressions/datetime_expression_test.dart

45 lines
1.5 KiB
Dart

import 'package:moor/moor.dart';
import 'package:test/test.dart';
import '../data/utils/expect_equality.dart';
// ignore_for_file: deprecated_member_use_from_same_package
typedef Expression<int, IntType> _Extractor(
Expression<DateTime, DateTimeType> d);
/// Tests the top level [year], [month], ..., [second] methods
void main() {
final column = GeneratedDateTimeColumn('val', null, false);
group('extracting information via top-level method', () {
final expectedResults = <_Extractor, String>{
year: 'CAST(strftime("%Y", val, "unixepoch") AS INTEGER)',
month: 'CAST(strftime("%m", val, "unixepoch") AS INTEGER)',
day: 'CAST(strftime("%d", val, "unixepoch") AS INTEGER)',
hour: 'CAST(strftime("%H", val, "unixepoch") AS INTEGER)',
minute: 'CAST(strftime("%M", val, "unixepoch") AS INTEGER)',
second: 'CAST(strftime("%S", val, "unixepoch") AS INTEGER)',
};
expectedResults.forEach((key, value) {
test('should extract field', () {
final ctx = GenerationContext(SqlTypeSystem.defaultInstance, null);
key(column).writeInto(ctx);
expect(ctx.sql, value);
expectEquals(key(column), key(column));
});
});
});
test('can cast datetimes to unix timestamps without rewriting', () {
final expr = currentDateAndTime.secondsSinceEpoch + const Constant(10);
final ctx = GenerationContext(SqlTypeSystem.defaultInstance, null);
expr.writeInto(ctx);
expect(ctx.sql, 'strftime(\'%s\', CURRENT_TIMESTAMP) + 10');
});
}