[DevTools] New harness for inspector-protocol layout tests

third_party/WebKit/LayoutTests/http/tests/inspector-protocol-2/json-parse.js

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+(async function() {
+  let {page, session, Protocol} = await InspectorTest.start('Tests that backend correctly handles unicode in messages');
+
+  var requestId = 100500;
+  var command = {
+    'method': 'Runtime.evaluate',
+    'params': {expression: '\'!!!\''},
+    'id': requestId
+  };
+  var message = JSON.stringify(command).replace('!!!', '\\u041F\\u0440\\u0438\\u0432\\u0435\\u0442 \\u043C\\u0438\\u0440');
+  InspectorTest.logMessage(await session.sendRawCommand(requestId, message));
+  InspectorTest.completeTest();
+})();