blob: 1c13f65e0724d28ff0ce3e582195a3f1669d4429 [file] [log] [blame]
// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// Tests auto-detection of null safety mode in gen_kernel tool.
import 'dart:io' show File, Platform;
import 'package:path/path.dart' as path;
import 'snapshot_test_helper.dart';
compileAndRunTest(String comment, String expectedOutput) async {
await withTempDir((String temp) async {
final testScriptPath = path.join(temp, 'test.dart');
// $comment
void main() {
try {
null as int;
print('weak mode');
} on TypeError {
print('strong mode');
final testDillPath = path.join(temp, 'test.dill');
await runGenKernelWithoutStandardOptions('BUILD DILL FILE', [
final result = await runBinary(
'RUN TEST FROM DILL', Platform.executable, [testDillPath]);
expectOutput(expectedOutput, result);
main() async {
await compileAndRunTest('', 'strong mode');
await compileAndRunTest('@dart=2.7', 'weak mode');