add sendRequest to VMIsolateRef

test/isolate_test.dart

Index: test/isolate_test.dart
diff --git a/test/isolate_test.dart b/test/isolate_test.dart
index b08bdd9158db4d4326739dbc8fc1e97da022cfe2..c5b64da0e1a2eb7c0e01a39074d1dee26ac04444 100644
--- a/test/isolate_test.dart
+++ b/test/isolate_test.dart
@@ -375,6 +375,26 @@ void main() {
       expect(breakpoint.number, equals(1));
     });
   });
+
+  group("invokeExtension", () {
+    test("enforces ext. prefix", () async {
+      var client = await runAndConnect();
+      var isolate = await (await client.getVM()).isolates.first.loadRunnable();
+      expect(() => isolate.invokeExtension('noprefix'), throwsArgumentError);
+    });
+
+    test("forwards to scope", () async {
+      var client = await runAndConnect(main: r"""
+        registerExtension('ext.ping', (_, __) async {
+          return new ServiceExtensionResponse.result('{"type": "pong"}');
+        });
+      """);
+
+      var isolate = await (await client.getVM()).isolates.first.loadRunnable();
+      Map response = await isolate.invokeExtension('ext.ping');
+      expect(response, {'type': 'pong'});

[nweiz, 2016/02/10 21:28:28]

Oh jeez, does the protocol automatically JSON-deserialize its return value? If
so, that should definitely be documented in the registerExtension docs.

[yjbanov, 2016/02/10 22:06:07]

Yep

+    });

[nweiz, 2016/02/10 21:28:28]

Test passing in arguments as well.

[yjbanov, 2016/02/10 22:06:07]

Done.

+  });
 }
 
 /// Starts a client with two unpaused empty isolates.