Compile and run Hello World!

tests/compiler/dart2js/kernel/run_from_dill_test.dart

+// Copyright (c) 2017, 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.
+
+// Test that we can compile from dill and run the generated code with d8.
+library dart2js.kernel.run_from_dill_test;
+
+import 'dart:async';
+import 'dart:io';
+
+import 'package:async_helper/async_helper.dart';
+import 'package:expect/expect.dart';
+import 'package:compiler/src/commandline_options.dart';
+import 'package:compiler/src/dart2js.dart' as dart2js;
+import 'package:compiler/src/filenames.dart';
+
+import 'compiler_helper.dart';
+import '../sourcemaps/stacktrace_test.dart';
+import '../serialization/helper.dart';
+
+const SOURCE = const {
+  'main.dart': '''
+main() {
+  print('Hello World!');
+}
+'''
+};
+
+main(List<String> args) {
+  asyncTest(() async {
+    await mainInternal(args);
+  });
+}
+
+enum ResultKind { crashes, errors, warnings, success, failure }
+
+Future<ResultKind> mainInternal(List<String> args,
+    {bool skipWarnings: false, bool skipErrors: false}) async {
+  Arguments arguments = new Arguments.from(args);
+  Uri entryPoint;
+  Map<String, String> memorySourceFiles;
+  if (arguments.uri != null) {
+    entryPoint = arguments.uri;
+    memorySourceFiles = const <String, String>{};
+  } else {
+    entryPoint = Uri.parse('memory:main.dart');
+    memorySourceFiles = SOURCE;
+  }
+
+  Uri dillFile =
+      await createTemp(entryPoint, memorySourceFiles, printSteps: true);
+  String output = uriPathToNative(dillFile.resolve('out.js').path);
+  List<String> dart2jsArgs = [
+    dillFile.toString(),
+    '-o$output',
+    Flags.loadFromDill,
+    Flags.disableTypeInference,
+    Flags.disableInlining,
+    Flags.enableAssertMessage
+  ];
+  print('Running: dart2js ${dart2jsArgs.join(' ')}');
+
+  await dart2js.internalMain(dart2jsArgs);
+
+  print('---- run from dill --------------------------------------------');
+  ProcessResult runResult = Process.runSync(d8executable,
+      ['sdk/lib/_internal/js_runtime/lib/preambles/d8.js', output]);
+  String out = '${runResult.stderr}\n${runResult.stdout}';
+  print('d8 output:');
+  print(out);
+  Expect.equals(0, runResult.exitCode);
+
+  return ResultKind.success;
+}