Check in codegen test expectations.

test/codegen/expect/lib/html/websocket_test.js

Index: test/codegen/expect/lib/html/websocket_test.js
diff --git a/test/codegen/expect/lib/html/websocket_test.js b/test/codegen/expect/lib/html/websocket_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..c34bc83128afa5a38b37d349a2b5070b3815b635
--- /dev/null
+++ b/test/codegen/expect/lib/html/websocket_test.js
@@ -0,0 +1,66 @@
+dart_library.library('lib/html/websocket_test', null, /* Imports */[
+  'dart_sdk',
+  'unittest'
+], function load__websocket_test(exports, dart_sdk, unittest) {
+  'use strict';
+  const core = dart_sdk.core;
+  const html = dart_sdk.html;
+  const async = dart_sdk.async;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const html_individual_config = unittest.html_individual_config;
+  const unittest$ = unittest.unittest;
+  const src__matcher__expect = unittest.src__matcher__expect;
+  const src__matcher__core_matchers = unittest.src__matcher__core_matchers;
+  const src__matcher__throws_matcher = unittest.src__matcher__throws_matcher;
+  const websocket_test = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [])))();
+  let dynamicTobool = () => (dynamicTobool = dart.constFn(dart.definiteFunctionType(core.bool, [dart.dynamic])))();
+  let EventTodynamic = () => (EventTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [html.Event])))();
+  let MessageEventTodynamic = () => (MessageEventTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [html.MessageEvent])))();
+  let VoidToFuture = () => (VoidToFuture = dart.constFn(dart.definiteFunctionType(async.Future, [])))();
+  let EventTovoid = () => (EventTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [html.Event])))();
+  websocket_test.main = function() {
+    html_individual_config.useHtmlIndividualConfiguration();
+    unittest$.group('supported', dart.fn(() => {
+      unittest$.test('supported', dart.fn(() => {
+        src__matcher__expect.expect(html.WebSocket[dartx.supported], true);
+      }, VoidTodynamic()));
+    }, VoidTovoid()));
+    unittest$.group('websocket', dart.fn(() => {
+      let isWebSocket = src__matcher__core_matchers.predicate(dart.fn(x => html.WebSocket.is(x), dynamicTobool()), 'is a WebSocket');
+      let expectation = dart.test(html.WebSocket[dartx.supported]) ? src__matcher__core_matchers.returnsNormally : src__matcher__throws_matcher.throws;
+      unittest$.test('constructorTest', dart.fn(() => {
+        src__matcher__expect.expect(dart.fn(() => {
+          let socket = html.WebSocket.new('ws://localhost/ws', 'chat');
+          src__matcher__expect.expect(socket, src__matcher__core_matchers.isNotNull);
+          src__matcher__expect.expect(socket, isWebSocket);
+        }, VoidTodynamic()), expectation);
+      }, VoidTodynamic()));
+      if (dart.test(html.WebSocket[dartx.supported])) {
+        unittest$.test('echo', dart.fn(() => {
+          let socket = html.WebSocket.new(dart.str`ws://${html.window[dartx.location][dartx.host]}/ws`);
+          socket[dartx.onOpen].first.then(dart.dynamic)(dart.fn(_ => {
+            socket[dartx.send]('hello!');
+          }, EventTodynamic()));
+          return socket[dartx.onMessage].first.then(dart.dynamic)(dart.fn(e => {
+            src__matcher__expect.expect(e[dartx.data], 'hello!');
+            socket[dartx.close]();
+          }, MessageEventTodynamic()));
+        }, VoidToFuture()));
+        unittest$.test('error handling', dart.fn(() => {
+          let socket = html.WebSocket.new(dart.str`ws://${html.window[dartx.location][dartx.host]}/ws`);
+          socket[dartx.onOpen].first.then(dart.dynamic)(dart.fn(_ => socket[dartx.send]('close-with-error'), EventTovoid()));
+          return socket[dartx.onError].first.then(dart.dynamic)(dart.fn(e => {
+            core.print(dart.str`${e} was caught, yay!`);
+            socket[dartx.close]();
+          }, EventTodynamic()));
+        }, VoidToFuture()));
+      }
+    }, VoidTovoid()));
+  };
+  dart.fn(websocket_test.main, VoidTodynamic());
+  // Exports:
+  exports.websocket_test = websocket_test;
+});