tests/compiler/dart2js/end_to_end/no_platform_test.dart

// Copyright (c) 2019, 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.

import 'package:async_helper/async_helper.dart';
import 'package:expect/expect.dart';
import 'package:compiler/src/kernel/dart2js_target.dart' show Dart2jsTarget;
import 'package:kernel/ast.dart' as ir;
import 'package:kernel/core_types.dart' as ir;
import 'package:kernel/target/targets.dart' hide DiagnosticReporter;
import 'package:front_end/src/api_prototype/standard_file_system.dart' as fe;
import 'package:front_end/src/api_unstable/dart2js.dart' as fe;

main() {
  asyncTest(() async {
    fe.InitializedCompilerState initializedCompilerState =
        fe.initializeCompiler(
            null,
            new Dart2jsTarget('dart2js', new TargetFlags()),
            Uri.base
                .resolve('sdk/lib/libraries.json'), // librariesSpecificationUri
            [], // linkedDependencies
            Uri.base.resolve('.packages'), // packagesFileUri
            experimentalFlags: const {
              fe.ExperimentalFlag.constantUpdate2018: true
            });
    ir.Component component = await fe.compile(
        initializedCompilerState, false, fe.StandardFileSystem.instance,
        (fe.DiagnosticMessage message) {
      message.plainTextFormatted.forEach(print);
      Expect.notEquals(fe.Severity.error, message.severity);
    },
        Uri.base.resolve(
            'tests/compiler/dart2js/end_to_end/data/hello_world.dart'));
    Expect.isNotNull(new ir.CoreTypes(component).futureClass);
  });
}