Add an option to run skipped tests.

lib/src/runner/reporter/json.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:async';
 import 'dart:convert';
 
 import '../../backend/group.dart';
 import '../../backend/group_entry.dart';
 import '../../backend/live_test.dart';
 import '../../backend/metadata.dart';
 import '../../backend/state.dart';
 import '../../backend/suite.dart';
 import '../../backend/test_platform.dart';
 import '../../frontend/expect.dart';
 import '../../utils.dart';
 import '../engine.dart';
 import '../load_suite.dart';
 import '../reporter.dart';
 import '../version.dart';
 
 /// A reporter that prints machine-readable JSON-formatted test results.
 class JsonReporter implements Reporter {
   /// Whether to use verbose stack traces.
   final bool _verboseTrace;
 
   /// Whether to emit location information for JS tests.
   final bool _jsLocations;
 
+  /// Whether skipped tests are run anyway.
+  final bool _runSkipped;
+
   /// The engine used to run the tests.
   final Engine _engine;
 
   /// A stopwatch that tracks the duration of the full run.
   final _stopwatch = new Stopwatch();
 
   /// Whether we've started [_stopwatch].
   ///
   /// We can't just use `_stopwatch.isRunning` because the stopwatch is stopped
   /// when the reporter is paused.
@@ skipping 16 matching lines @@
 
   /// The next ID to associate with a [LiveTest].
   var _nextID = 0;
 
   /// Watches the tests run by [engine] and prints their results as JSON.
   ///
   /// If [verboseTrace] is `true`, this will print core library frames. If
   /// [jsLocations] is `false`, this will not emit location information for JS
   /// tests.
   static JsonReporter watch(Engine engine, {bool verboseTrace: false,
-      bool jsLocations: true}) {
+      bool jsLocations: true, bool runSkipped: false}) {
     return new JsonReporter._(engine,
-        verboseTrace: verboseTrace, jsLocations: jsLocations);
+        verboseTrace: verboseTrace,
+        jsLocations: jsLocations,
+        runSkipped: runSkipped);
   }
 
   JsonReporter._(this._engine, {bool verboseTrace: false,
-      bool jsLocations: true})
+      bool jsLocations: true, bool runSkipped: false})
       : _verboseTrace = verboseTrace,
-        _jsLocations = jsLocations {
+        _jsLocations = jsLocations,
+        _runSkipped = runSkipped {
     _subscriptions.add(_engine.onTestStarted.listen(_onTestStarted));
 
     /// Convert the future to a stream so that the subscription can be paused or
     /// canceled.
     _subscriptions.add(_engine.success.asStream().listen(_onDone));
 
     _subscriptions.add(_engine.onSuiteAdded.listen(null, onDone: () {
       _emit("allSuites", {
         "count": _engine.addedSuites.length
       });
@@ skipping 131 matching lines @@
           "metadata": _serializeMetadata(group.metadata),
           "testCount": group.testCount
         }, group, suite.platform)
       });
       parentID = id;
       return id;
     }).toList();
   }
 
   /// Serializes [metadata] into a JSON-protocol-compatible map.
-  Map _serializeMetadata(Metadata metadata) =>
-      {"skip": metadata.skip, "skipReason": metadata.skipReason};
+  Map _serializeMetadata(Metadata metadata) => _runSkipped
+      ? {"skip": false, "skipReason": null}
+      : {"skip": metadata.skip, "skipReason": metadata.skipReason};
 
   /// A callback called when [liveTest] finishes running.
   void _onComplete(LiveTest liveTest) {
     _emit("testDone", {
       "testID": _liveTestIDs[liveTest],
       // For backwards-compatibility, report skipped tests as successes.
       "result": liveTest.state.result == Result.skipped
           ? "success"
           : liveTest.state.result.toString(),
       "skipped": liveTest.state.result == Result.skipped,
@@ skipping 37 matching lines @@
       GroupEntry entry, TestPlatform platform) {
     var frame = entry.trace?.frames?.first;
     if (!_jsLocations && platform.isJS) frame = null;
 
     map["line"] = frame?.line;
     map["column"] = frame?.column;
     map["url"] = frame?.uri?.toString();
     return map;
   }
 }