Added json result of test output to output debug directory.

tools/testing/dart/configuration.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.
 
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 
 import 'compiler_configuration.dart';
 import 'http_server.dart';
@@ skipping 34 matching lines @@
       this.resetBrowser,
       this.skipCompilation,
       this.useBlobs,
       this.useSdk,
       this.useFastStartup,
       this.useEnableAsserts,
       this.useDart2JSWithKernel,
       this.useDart2JSWithKernelInSsa,
       this.writeDebugLog,
       this.writeTestOutcomeLog,
+      this.writeResultLog,
       this.drtPath,
       this.chromePath,
       this.safariPath,
       this.firefoxPath,
       this.dartPath,
       this.dartPrecompiledPath,
       this.flutterPath,
       this.taskCount,
       int timeout,
       this.shardCount,
       this.shard,
       this.stepName,
       this.testServerPort,
       this.testServerCrossOriginPort,
       this.testDriverErrorPort,
       this.localIP,
       this.dart2jsOptions,
       this.vmOptions,
       String packages,
       this.packageRoot,
       this.suiteDirectory,
       this.builderTag,
+      this.outputDirectory,
       this.reproducingArguments})
       : _packages = packages,
         _timeout = timeout;
 
   final Architecture architecture;
   final Compiler compiler;
   final Mode mode;
   final Progress progress;
   final Runtime runtime;
   final System system;
@@ skipping 21 matching lines @@
   final bool resetBrowser;
   final bool skipCompilation;
   final bool useBlobs;
   final bool useSdk;
   final bool useFastStartup;
   final bool useEnableAsserts;
   final bool useDart2JSWithKernel;
   final bool useDart2JSWithKernelInSsa;
   final bool writeDebugLog;
   final bool writeTestOutcomeLog;
+  final bool writeResultLog;
 
   // Various file paths.
 
   final String drtPath;
   final String chromePath;
   final String safariPath;
   final String firefoxPath;
   final String dartPath;
   final String dartPrecompiledPath;
   final String flutterPath;
@@ skipping 17 matching lines @@
   String _packages;
   String get packages {
     // If the .packages file path wasn't given, find it.
     if (packageRoot == null && _packages == null) {
       _packages = TestUtils.dartDirUri.resolve('.packages').toFilePath();
     }
 
     return _packages;
   }
 
+  final String outputDirectory;
   final String packageRoot;
   final String suiteDirectory;
   final String builderTag;
   final List<String> reproducingArguments;
 
   TestingServers _servers;
   TestingServers get servers {
     if (_servers == null) {
       throw new StateError("Servers have not been started yet.");
     }
@@ skipping 247 matching lines @@
 
     if (normalDir.existsSync() && crossDir.existsSync()) {
       throw "You can't have both $normalDir and $crossDir. We don't know which"
           " binary to use.";
     }
 
     if (crossDir.existsSync()) return cross;
 
     return normal;
   }
+
+  Map _summaryMap;
+
+  /// [toSummaryMap] returns a map of configurations important to the running
+  /// of a test. Flags and properties used for output are not included.
+  /// Boolean flags that are false are not included in the map. The summary map
+  /// can be used to serialize to json for test-output logging.
+  Map toSummaryMap() {
+    if (_summaryMap == null) {
+      _summaryMap = {
+        'mode': mode.name,
+        'arch': architecture.name,
+        'compiler': compiler.name,
+        'runtime': runtime.name,
+        'checked': isChecked,
+        'strong': isStrong,
+        'host_checked': isHostChecked,
+        'minified': isMinified,
+        'csp': isCsp,
+        'system': system.name,
+        'vm_options': vmOptions,
+        'use_sdk': useSdk,
+        'builder_tag': builderTag,
+        'fast_startup': useFastStartup,
+        'timeout': timeout
+      };
+    }
+    return _summaryMap;
+  }
 }
 
 class Architecture {
   static const ia32 = const Architecture._('ia32');
   static const x64 = const Architecture._('x64');
   static const arm = const Architecture._('arm');
   static const armv6 = const Architecture._('armv6');
   static const armv5te = const Architecture._('armv5te');
   static const arm64 = const Architecture._('arm64');
   static const simarm = const Architecture._('simarm');
@@ skipping 300 matching lines @@
 
       case macos:
         return 'xcodebuild/';
     }
 
     throw "unreachable";
   }
 
   String toString() => "System($name)";
 }