pkg/compiler/test/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:expect/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;
import 'package:compiler/src/util/memory_compiler.dart';

main() {
  runTest(Map<fe.ExperimentalFlag, bool> experimentalFlags) async {
    fe.InitializedCompilerState initializedCompilerState = fe
        .initializeCompiler(
          null,
          Dart2jsTarget('dart2js', TargetFlags()),
          sdkLibrariesSpecificationUri,
          [], // additionalDills
          Uri.base.resolve('.dart_tool/package_config.json'), // packagesFileUri
          explicitExperimentalFlags: experimentalFlags,
          verify: true,
        );
    ir.Component component = (await fe.compile(
      initializedCompilerState,
      false,
      fe.StandardFileSystem.instance,
      (fe.CfeDiagnosticMessage message) {
        message.plainTextFormatted.forEach(print);
        Expect.notEquals(fe.CfeSeverity.error, message.severity);
      },
      [Uri.base.resolve('pkg/compiler/test/end_to_end/data/hello_world.dart')],
    ))!;
    Expect.isNotNull(new ir.CoreTypes(component).futureClass);
  }

  asyncTest(() async {
    Map<fe.ExperimentalFlag, bool> baseFlags = {
      fe.ExperimentalFlag.nonNullable: true,
    };
    await runTest(baseFlags);
  });
}