Implement Context::GetIsolate()

test/cctest/test-api.cc

Index: test/cctest/test-api.cc
diff --git a/test/cctest/test-api.cc b/test/cctest/test-api.cc
index 226d01db62955e0b76d91c14bb89b9fe245a8f30..6449594be4a5dcb4377906e9e969b78c8b061472 100644
--- a/test/cctest/test-api.cc
+++ b/test/cctest/test-api.cc
@@ -168,6 +168,23 @@ THREADED_TEST(Handles) {
 }
 
 
+THREADED_TEST(IsolateOfContext) {
+  v8::HandleScope scope;
+  v8::Persistent<Context> env = Context::New();
+
+  CHECK(!env->InContext());
+  CHECK(env->GetIsolate() == v8::Isolate::GetCurrent());
+  env->Enter();
+  CHECK(env->InContext());
+  CHECK(env->GetIsolate() == v8::Isolate::GetCurrent());
+  env->Exit();
+  CHECK(!env->InContext());
+  CHECK(env->GetIsolate() == v8::Isolate::GetCurrent());
+
+  env.Dispose();
+}
+
+
 THREADED_TEST(ReceiverSignature) {
   v8::HandleScope scope;
   LocalContext env;