Added ability to request zone memory information for all isolates through the VM service and added …

runtime/observatory/tests/service/get_zone_memory_info_rpc_test.dart

Index: runtime/observatory/tests/service/get_zone_memory_info_rpc_test.dart
diff --git a/runtime/observatory/tests/service/get_zone_memory_info_rpc_test.dart b/runtime/observatory/tests/service/get_zone_memory_info_rpc_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..cae6bd4165b98d3851bedf74d50daecabb8562b7
--- /dev/null
+++ b/runtime/observatory/tests/service/get_zone_memory_info_rpc_test.dart
@@ -0,0 +1,41 @@
+// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file

[zra, 2016/12/13 23:37:02]

2016

+// 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=--error_on_bad_type --error_on_bad_override --vm-name=Walter
+
+import 'package:observatory/service_io.dart';
+import 'package:unittest/unittest.dart';

[zra, 2016/12/13 23:37:02]

Should we be using the test rather than unittest package? I thought unittest was
deprecated. Not sure about his though.

[bkonyi, 2016/12/13 23:48:45]

I'm not sure myself. I had copied this test originally from
get_vm_rpc_test.dart, so that's what was there.

+
+import 'test_helper.dart';
+
+var tests = [
+  (VM vm) async {
+    var isInt = new isInstanceOf<int>();
+    var result = await vm.invokeRpcNoUpgrade('_getZoneMemoryInfo', {});
+    expect(result['type'], equals('_ZoneMemoryInfo'));
+    expect(result.containsKey('isolates'), isTrue);
+    var isolates = result['isolates'];
+
+    for (var isolate in isolates) {
+      expect(isolate['type'], equals('Isolate'));
+      expect(isolate.containsKey('threads'), isTrue);
+      var threads = isolate['threads'];
+
+      for (var thread in threads) {
+        expect(thread['type'], equals('_Thread'));
+        expect(thread['id'], isNotNull);
+        expect(thread['kind'], isNotNull);
+        expect(thread.containsKey('zones'), isTrue);
+        var zones = thread['zones'];
+
+        for (var zone in zones) {
+          expect(zone['type'], equals('_Zone'));
+          expect(zone['capacity'], isInt);
+          expect(zone['used'], isInt);
+        }
+      }
+    }
+  },
+];
+
+main(args) async => runVMTests(args, tests);