Basic plugin config parsing.

pkg/analyzer/test/src/plugin/plugin_config_test.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.
+
+library test.src.plugin.plugin_config_test;
+
+import 'package:analyzer/source/analysis_options_provider.dart';
+import 'package:analyzer/src/plugin/plugin_configuration.dart';
+import 'package:unittest/unittest.dart';
+
+main() {
+  group('PluginConfig', () {
+    group('parsing', () {
+      test('plugin map', () {
+        const optionsSrc = '''
+analyzer:
+  plugins:
+    my_plugin1: ^0.1.0 #shorthand 
+    my_plugin2:
+      version: ^0.2.0
+    my_plugin3:
+      class_name: MyPlugin
+      library_uri: myplugin/myplugin.dart
+      path: '/u/disk/src/'
+''';
+        var config = parseConfig(optionsSrc);
+        var plugins = pluginsSortedByName(config);
+        expect(plugins, hasLength(3));
+        expect(plugins[0].name, equals('my_plugin1'));
+        expect(plugins[0].version, equals('^0.1.0'));
+        expect(plugins[1].name, equals('my_plugin2'));
+        expect(plugins[1].version, equals('^0.2.0'));
+        expect(plugins[2].name, equals('my_plugin3'));
+        expect(plugins[2].version, isNull);
+        expect(plugins[2].path, equals('/u/disk/src/'));
+        expect(plugins[2].libraryUri, equals('myplugin/myplugin.dart'));
+        expect(plugins[2].className, equals('MyPlugin'));
+      });
+    });
+  });
+}
+
+PluginConfig parseConfig(String optionsSrc) {
+  var options = new AnalysisOptionsProvider().getOptionsFromString(optionsSrc);
+  return new PluginConfig.fromOptions(options);
+}
+
+List<PluginInfo> pluginsSortedByName(PluginConfig config) =>
+    config.plugins.toList()..sort((p1, p2) => p1.name.compareTo(p2.name));