Kill service_test.cc tests in favor of dart tests for the service protocol.

runtime/observatory/tests/service/get_retained_size_rpc_test.dart

Index: runtime/observatory/tests/service/get_retained_size_rpc_test.dart
diff --git a/runtime/observatory/tests/service/get_retained_size_rpc_test.dart b/runtime/observatory/tests/service/get_retained_size_rpc_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..a8a66f6eb07a690ff3f5364e185b9716416f8faa
--- /dev/null
+++ b/runtime/observatory/tests/service/get_retained_size_rpc_test.dart
@@ -0,0 +1,68 @@
+// 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.
+// VMOptions=--compile-all --error_on_bad_type --error_on_bad_override
+
+import 'dart:async';
+
+import 'package:observatory/service_io.dart';
+import 'package:unittest/unittest.dart';
+
+import 'test_helper.dart';
+
+class _TestClass {
+  _TestClass(this.x, this.y);
+  var x;
+  var y;
+}
+
+var myVar;
+
+eval(Isolate isolate, String expression) async {
+  Map params = {
+    'targetId': isolate.rootLib.id,
+    'expression': expression,
+  };
+  return await isolate.invokeRpcNoUpgrade('eval', params);
+}
+
+var tests = [
+  (Isolate isolate) async {
+    // One instance of _TestClass retained.
+    var evalResult = await eval(
+        isolate, 'myVar = new _TestClass(null, null)');
+    var params = {
+      'targetId': evalResult['id'],
+    };
+    var result = await isolate.invokeRpcNoUpgrade('_getRetainedSize', params);
+    expect(result['type'], equals('@int'));
+    int value1 = int.parse(result['valueAsString']);
+    expect(value1, isPositive);
+
+    // Two instances of _TestClass retained.
+    evalResult = await eval(
+        isolate, 'myVar = new _TestClass(new _TestClass(null, null), null)');
+    params = {
+      'targetId': evalResult['id'],
+    };
+    result = await isolate.invokeRpcNoUpgrade('_getRetainedSize', params);
+    expect(result['type'], equals('@int'));
+    int value2 = int.parse(result['valueAsString']);
+    expect(value2, isPositive);
+
+    // Size has doubled.
+    expect(value2, equals(2 * value1));
+
+    // Get the retained size for class _TestClass.
+    params = {
+      'targetId': evalResult['class']['id'],
+    };
+    result = await isolate.invokeRpcNoUpgrade('_getRetainedSize', params);
+    expect(result['type'], equals('@int'));
+    int value3 = int.parse(result['valueAsString']);
+    expect(value3, isPositive);
+    expect(value3, equals(value2));
+  },
+];
+
+main(args) async => runIsolateTests(args, tests);