Move package:testing to SDK.

pkg/testing/lib/src/test_root.dart

+// Copyright (c) 2016, 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.md file.
+
+library testing.test_root;
+
+import 'dart:async' show
+    Future;
+
+import 'dart:convert' show
+    JSON;
+
+import 'dart:io' show
+    File;
+
+import '../testing.dart' show
+    Chain;
+
+import 'analyze.dart' show
+    Analyze;
+
+import 'suite.dart' show
+    Dart,
+    Suite;
+
+/// Records properties of a test root. The information is read from a JSON file.
+///
+/// Example with comments:
+///     {
+///       # Path to the `.packages` file used.
+///       "packages": "test/.packages",
+///       # A list of test suites (collection of tests).
+///       "suites": [
+///         # A list of suite objects. See the subclasses of [Suite] below.
+///       ],
+///       "analyze": {
+///         # Uris to analyze.
+///         "uris": [
+///           "lib/",
+///           "bin/dartk.dart",
+///           "bin/repl.dart",
+///           "test/log_analyzer.dart",
+///           "third_party/testing/lib/"
+///         ],
+///         # Regular expressions of file names to ignore when analyzing.
+///         "exclude": [
+///           "/third_party/dart-sdk/pkg/compiler/",
+///           "/third_party/kernel/"
+///         ]
+///       }
+///     }
+class TestRoot {
+  final Uri packages;
+
+  final List<Suite> suites;
+
+  TestRoot(this.packages, this.suites);
+
+  Analyze get analyze => suites.last;
+
+  List<Uri> get urisToAnalyze => analyze.uris;
+
+  List<RegExp> get excludedFromAnalysis => analyze.exclude;
+
+  Iterable<Dart> get dartSuites {
+    return new List<Dart>.from(
+        suites.where((Suite suite) => suite is Dart));
+  }
+
+  Iterable<Chain> get toolChains {
+    return new List<Chain>.from(
+        suites.where((Suite suite) => suite is Chain));
+  }
+
+  String toString() {
+    return "TestRoot($suites, $urisToAnalyze)";
+  }
+
+  static Future<TestRoot> fromUri(Uri uri) async {
+    String json = await new File.fromUri(uri).readAsString();
+    Map data = JSON.decode(json);
+
+    addDefaults(data);
+
+    Uri packages = uri.resolve(data["packages"]);
+
+    List<Suite> suites = new List<Suite>.from(
+        data["suites"].map((Map json) => new Suite.fromJsonMap(uri, json)));
+
+    Analyze analyze = await Analyze.fromJsonMap(uri, data["analyze"], suites);
+
+    suites.add(analyze);
+
+    return new TestRoot(packages, suites);
+  }
+
+  static void addDefaults(Map data) {
+    data.putIfAbsent("packages", () => ".packages");
+    data.putIfAbsent("suites", () => []);
+    Map analyze = data.putIfAbsent("analyze", () => {});
+    analyze.putIfAbsent("uris", () => []);
+    analyze.putIfAbsent("exclude", () => []);
+  }
+}