[DevTools] New harness for inspector-protocol layout tests

third_party/WebKit/LayoutTests/inspector-protocol/json-parse.js

Index: third_party/WebKit/LayoutTests/inspector-protocol/json-parse.js
diff --git a/third_party/WebKit/LayoutTests/inspector-protocol/json-parse.js b/third_party/WebKit/LayoutTests/inspector-protocol/json-parse.js
new file mode 100644
index 0000000000000000000000000000000000000000..8b9e3278fb193629cbece5869ebe1d544e8e5e33
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/inspector-protocol/json-parse.js
@@ -0,0 +1,13 @@
+(async function(testRunner) {
+  let {page, session, dp} = await testRunner.startBlank('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');
+  testRunner.logMessage(await session.sendRawCommand(requestId, message));
+  testRunner.completeTest();
+})