Add support for --dart2js-path and --dart2js-args.

lib/src/runner/configuration.dart

 // Copyright (c) 2015, 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 'dart:io';
 
 import 'package:boolean_selector/boolean_selector.dart';
 import 'package:collection/collection.dart' hide mapMap, mergeMaps;
 import 'package:glob/glob.dart';
 import 'package:path/path.dart' as p;
@@ skipping 51 matching lines @@
   final PlatformSelector testOn;
 
   /// Whether to pause for debugging after loading each test suite.
   bool get pauseAfterLoad => _pauseAfterLoad ?? false;
   final bool _pauseAfterLoad;
 
   /// The package root for resolving "package:" URLs.
   String get packageRoot => _packageRoot ?? p.join(p.current, 'packages');
   final String _packageRoot;
 
+  /// The path to dart2js.
+  String get dart2jsPath => _dart2jsPath ?? p.join(sdkDir, 'bin', 'dart2js');
+  final String _dart2jsPath;
+
+  /// Additional arguments to pass to dart2js.
+  final List<String> dart2jsArgs;
+
   /// The name of the reporter to use to display results.
   String get reporter => _reporter ?? defaultReporter;
   final String _reporter;
 
   /// The URL for the `pub serve` instance from which to load tests, or `null`
   /// if tests should be loaded from the filesystem.
   final Uri pubServeUrl;
 
   /// The default test timeout.
   ///
@@ skipping 178 matching lines @@
       bool help,
       bool version,
       bool verboseTrace,
       bool jsTrace,
       bool skip,
       String skipReason,
       PlatformSelector testOn,
       bool pauseAfterLoad,
       bool color,
       String packageRoot,
+      String dart2jsPath,
+      Iterable<String> dart2jsArgs,
       String reporter,
       int pubServePort,
       int concurrency,
       int shardIndex,
       int totalShards,
       Timeout timeout,
       Iterable<Pattern> patterns,
       Iterable<TestPlatform> platforms,
       Iterable<String> paths,
       Glob filename,
       Iterable<String> chosenPresets,
       BooleanSelector includeTags,
       BooleanSelector excludeTags,
       Iterable<String> addTags,
       Map<BooleanSelector, Configuration> tags,
       Map<PlatformSelector, Configuration> onPlatform,
       Map<String, Configuration> presets}) {
     _unresolved() => new Configuration._(
         help: help,
         version: version,
         verboseTrace: verboseTrace,
         jsTrace: jsTrace,
         skip: skip,
         skipReason: skipReason,
         testOn: testOn,
         pauseAfterLoad: pauseAfterLoad,
         color: color,
         packageRoot: packageRoot,
+        dart2jsPath: dart2jsPath,
+        dart2jsArgs: dart2jsArgs,
         reporter: reporter,
         pubServePort: pubServePort,
         concurrency: concurrency,
         shardIndex: shardIndex,
         totalShards: totalShards,
         timeout: timeout,
         patterns: patterns,
         platforms: platforms,
         paths: paths,
         filename: filename,
@@ skipping 47 matching lines @@
           bool help,
           bool version,
           bool verboseTrace,
           bool jsTrace,
           bool skip,
           this.skipReason,
           PlatformSelector testOn,
           bool pauseAfterLoad,
           bool color,
           String packageRoot,
+          String dart2jsPath,
+          Iterable<String> dart2jsArgs,
           String reporter,
           int pubServePort,
           int concurrency,
           this.shardIndex,
           this.totalShards,
           Timeout timeout,
           Iterable<Pattern> patterns,
           Iterable<TestPlatform> platforms,
           Iterable<String> paths,
           Glob filename,
           Iterable<String> chosenPresets,
           BooleanSelector includeTags,
           BooleanSelector excludeTags,
           Iterable<String> addTags,
           Map<BooleanSelector, Configuration> tags,
           Map<PlatformSelector, Configuration> onPlatform,
           Map<String, Configuration> presets})
       : _help = help,
         _version = version,
         _verboseTrace = verboseTrace,
         _jsTrace = jsTrace,
         _skip = skip,
         testOn = testOn ?? PlatformSelector.all,
         _pauseAfterLoad = pauseAfterLoad,
         _color = color,
         _packageRoot = packageRoot,
+        _dart2jsPath = dart2jsPath,
+        dart2jsArgs = dart2jsArgs?.toList() ?? [],
         _reporter = reporter,
         pubServeUrl = pubServePort == null
             ? null
             : Uri.parse("http://localhost:$pubServePort"),
         _concurrency = concurrency,
         timeout = (pauseAfterLoad ?? false)
             ? Timeout.none
             : (timeout == null ? new Timeout.factor(1) : timeout),
         patterns = new UnmodifiableSetView(patterns?.toSet() ?? new Set()),
         _platforms = _list(platforms),
@@ skipping 52 matching lines @@
         help: other._help ?? _help,
         version: other._version ?? _version,
         verboseTrace: other._verboseTrace ?? _verboseTrace,
         jsTrace: other._jsTrace ?? _jsTrace,
         skip: other._skip ?? _skip,
         skipReason: other.skipReason ?? skipReason,
         testOn: testOn.intersection(other.testOn),
         pauseAfterLoad: other._pauseAfterLoad ?? _pauseAfterLoad,
         color: other._color ?? _color,
         packageRoot: other._packageRoot ?? _packageRoot,
+        dart2jsPath: other._dart2jsPath ?? _dart2jsPath,
+        dart2jsArgs: dart2jsArgs.toList()..addAll(other.dart2jsArgs),
         reporter: other._reporter ?? _reporter,
         pubServePort: (other.pubServeUrl ?? pubServeUrl)?.port,
         concurrency: other._concurrency ?? _concurrency,
         shardIndex: other.shardIndex ?? shardIndex,
         totalShards: other.totalShards ?? totalShards,
         timeout: timeout.merge(other.timeout),
         patterns: patterns.union(other.patterns),
         platforms: other._platforms ?? _platforms,
         paths: other._paths ?? _paths,
         filename: other._filename ?? _filename,
@@ skipping 19 matching lines @@
       bool help,
       bool version,
       bool verboseTrace,
       bool jsTrace,
       bool skip,
       String skipReason,
       PlatformSelector testOn,
       bool pauseAfterLoad,
       bool color,
       String packageRoot,
+      String dart2jsPath,
+      Iterable<String> dart2jsArgs,
       String reporter,
       int pubServePort,
       int concurrency,
       int shardIndex,
       int totalShards,
       Timeout timeout,
       Iterable<Pattern> patterns,
       Iterable<TestPlatform> platforms,
       Iterable<String> paths,
       Glob filename,
       Iterable<String> chosenPresets,
       BooleanSelector includeTags,
       BooleanSelector excludeTags,
       Iterable<String> addTags,
       Map<BooleanSelector, Configuration> tags,
       Map<PlatformSelector, Configuration> onPlatform,
       Map<String, Configuration> presets}) {
     return new Configuration(
         help: help ?? _help,
         version: version ?? _version,
         verboseTrace: verboseTrace ?? _verboseTrace,
         jsTrace: jsTrace ?? _jsTrace,
         skip: skip ?? _skip,
         skipReason: skipReason ?? this.skipReason,
         testOn: testOn ?? this.testOn,
         pauseAfterLoad: pauseAfterLoad ?? _pauseAfterLoad,
         color: color ?? _color,
         packageRoot: packageRoot ?? _packageRoot,
+        dart2jsPath: dart2jsPath ?? _dart2jsPath,
+        dart2jsArgs: dart2jsArgs?.toList() ?? this.dart2jsArgs,
         reporter: reporter ?? _reporter,
         pubServePort: pubServePort ?? pubServeUrl?.port,
         concurrency: concurrency ?? _concurrency,
         shardIndex: shardIndex ?? this.shardIndex,
         totalShards: totalShards ?? this.totalShards,
         timeout: timeout ?? this.timeout,
         patterns: patterns ?? this.patterns,
         platforms: platforms ?? _platforms,
         paths: paths ?? _paths,
         filename: filename ?? _filename,
         chosenPresets: chosenPresets ?? this.chosenPresets,
         includeTags: includeTags ?? this.includeTags,
         excludeTags: excludeTags ?? this.excludeTags,
         addTags: addTags ?? this.addTags,
         tags: tags ?? this.tags,
         onPlatform: onPlatform ?? this.onPlatform,
         presets: presets ?? this.presets);
   }
 
   /// Merges two maps whose values are [Configuration]s.
   ///
   /// Any overlapping keys in the maps have their configurations merged in the
   /// returned map.
   Map<Object, Configuration> _mergeConfigMaps(Map<Object, Configuration> map1,
           Map<Object, Configuration> map2) =>
       mergeMaps(map1, map2,
           value: (config1, config2) => config1.merge(config2));
 }