Add dart_messages package.

pkg/dart_messages/test/parser_test.dart

+import 'dart:async';
+import 'dart:io';
+
+Future testJsParser(serverUrl) async {
+  String drt = "../../../client/tests/drt/content_shell";

[Johnni Winther, 2015/12/11 11:27:29]

What is this? (I don't have a file at that location)

[floitsch, 2015/12/14 18:56:41]

The file is downloaded when running any test with -rdrt. But even then the name
is different depending on the platform.

I will need to figure out how to do this. I could just run the updater-script
when drt is not there. However, that's a 90MB download and I'm not sure we
should just do that for a test...

+  String drtPath = Platform.script.resolve(drt).toFilePath();
+  String testPage = "$serverUrl/test/parser_test.html";
+  print("running drt $testPage");
+  ProcessResult result =
+      await Process.run(drtPath, ['--dump-render-tree', testPage]);
+  if (!result.stdout.contains("SUCCESS") || result.stdout.contains("FAILED")) {
+    throw "Test failed";
+  }
+  print(result.stdout);
+  print(result.stderr);
+}
+
+Uri pathOfData = Platform.script.resolve('../');
+
+_sendNotFound(HttpResponse response) {
+  response.statusCode = HttpStatus.NOT_FOUND;
+  response.close();
+}
+
+Future handleRequest(HttpRequest request) {
+  final String path = request.uri.path.substring(1);
+  final Uri requestPath = pathOfData.resolve(path);
+  final File file = new File(requestPath.toFilePath());
+  print("serving $requestPath");
+  if (path.endsWith("html")) {
+    request.response.headers.add('Content-Type', 'text/html');
+  } else if (path.endsWith("js")) {
+    request.response.headers.add('Content-Type', 'application/javascript');
+  }
+  return file.exists().then((bool found) {
+    if (found) {
+      file.openRead()
+          .pipe(request.response)
+          .catchError((e) { _sendNotFound(request.response); });
+    } else {
+      _sendNotFound(request.response);
+    }
+  });
+}
+
+serverRunning(HttpServer server, String scheme) async {
+  int port = server.port;
+  String serverUrl = "$scheme://127.0.0.1:$port";
+
+  server.listen(handleRequest);
+
+  try {
+    await testJsParser(serverUrl);
+  } finally {
+    server.close();
+  }
+}
+
+Future runServerAndTests() {
+  return HttpServer.bind(InternetAddress.LOOPBACK_IP_V4, 0)
+      .then((HttpServer server) => serverRunning(server, "http"));
+}
+
+main() {
+  runServerAndTests();
+}