tests/compiler/dart2js/mirrors/preserve_uris_test.dart

// Copyright (c) 2014, 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/expect.dart';
import 'package:async_helper/async_helper.dart';
import 'package:compiler/compiler_new.dart';
import 'package:compiler/src/commandline_options.dart';
import '../memory_compiler.dart' show runCompiler, OutputCollector;

const MEMORY_SOURCE_FILES = const <String, String>{
  'main.dart': """
library main;

@MirrorsUsed(targets: const ['main', 'lib'])
import 'dart:mirrors';
import 'lib.dart';


class Subclass extends Super {
  int _private;

  int magic() => _private++;
}

main() {
  var objects = [new Super(), new Subclass()];
  print(currentMirrorSystem().findLibrary(#main).uri);
}
""",
  'lib.dart': """
library lib;

class Super {
  int _private;

  int magic() => _private++;
}
"""
};

runTest(bool preserveUris) async {
  OutputCollector collector = new OutputCollector();
  var options = ["--minify", Flags.useOldFrontend];
  if (preserveUris) options.add("--preserve-uris");
  await runCompiler(
      memorySourceFiles: MEMORY_SOURCE_FILES,
      outputProvider: collector,
      options: options);
  String jsOutput = collector.getOutput('', OutputType.js);
  Expect.equals(preserveUris, jsOutput.contains("main.dart"));
  Expect.equals(preserveUris, jsOutput.contains("lib.dart"));
}

void main() {
  asyncTest(() async {
    await runTest(true);
    await runTest(false);
  });
}