VM: Service isolate under precompilation.

runtime/vm/dart_api_impl_test.cc

 // Copyright (c) 2012, 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.
 
 #include "bin/builtin.h"
 #include "include/dart_api.h"
 #include "include/dart_mirrors_api.h"
 #include "include/dart_native_api.h"
 #include "include/dart_tools_api.h"
 #include "platform/assert.h"
@@ skipping 6230 matching lines @@
   const char* name_cstr = "";
   EXPECT_VALID(Dart_StringToCString(lib_name, &name_cstr));
   EXPECT_STREQ("testlib", name_cstr);
 
   Dart_Handle lib_uri = Dart_LibraryUrl(root_lib);
   EXPECT_VALID(lib_uri);
   EXPECT(!Dart_IsNull(lib_uri));
   const char* uri_cstr = "";
   EXPECT_VALID(Dart_StringToCString(lib_uri, &uri_cstr));
   EXPECT_STREQ(TestCase::url(), uri_cstr);
+
+
+  Dart_Handle core_uri = Dart_NewStringFromCString("dart:core");
+  Dart_Handle core_lib = Dart_LookupLibrary(core_uri);
+  EXPECT_VALID(core_lib);
+  EXPECT(Dart_IsLibrary(core_lib));
+
+  Dart_Handle result = Dart_SetRootLibrary(core_uri);  // Not a library.
+  EXPECT(Dart_IsError(result));
+  root_lib = Dart_RootLibrary();
+  lib_uri = Dart_LibraryUrl(root_lib);
+  EXPECT_VALID(Dart_StringToCString(lib_uri, &uri_cstr));
+  EXPECT_STREQ(TestCase::url(), uri_cstr);  // Root library didn't change.
+
+  result = Dart_SetRootLibrary(core_lib);
+  EXPECT_VALID(result);
+  root_lib = Dart_RootLibrary();
+  lib_uri = Dart_LibraryUrl(root_lib);
+  EXPECT_VALID(Dart_StringToCString(lib_uri, &uri_cstr));
+  EXPECT_STREQ("dart:core", uri_cstr);  // Root library did change.
 }
 
 
 static int index = 0;
 
 
 static Dart_Handle import_library_handler(Dart_LibraryTag tag,
                                           Dart_Handle library,
                                           Dart_Handle url) {
   if (tag == Dart_kCanonicalizeUrl) {
@@ skipping 3562 matching lines @@
 
   // Heartbeat test for new events.
   EXPECT_SUBSTRING("\"name\":\"TestVMDuration2\"", buffer);
   EXPECT_SUBSTRING("\"function\":\"::_bar\"", buffer);
 
   // Free buffer allocated by AppendStreamConsumer
   free(data.buffer);
 }
 
 }  // namespace dart