Check in codegen test expectations.

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

Index: test/codegen/expect/lib/html/rtc_test.js
diff --git a/test/codegen/expect/lib/html/rtc_test.js b/test/codegen/expect/lib/html/rtc_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..f6904681700e899d70d1f4647412ed73f316730d
--- /dev/null
+++ b/test/codegen/expect/lib/html/rtc_test.js
@@ -0,0 +1,47 @@
+dart_library.library('lib/html/rtc_test', null, /* Imports */[
+  'dart_sdk',
+  'unittest'
+], function load__rtc_test(exports, dart_sdk, unittest) {
+  'use strict';
+  const core = dart_sdk.core;
+  const html = dart_sdk.html;
+  const _interceptors = dart_sdk._interceptors;
+  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 rtc_test = Object.create(null);
+  let MapOfString$String = () => (MapOfString$String = dart.constFn(core.Map$(core.String, core.String)))();
+  let JSArrayOfMapOfString$String = () => (JSArrayOfMapOfString$String = dart.constFn(_interceptors.JSArray$(MapOfString$String())))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [])))();
+  rtc_test.main = function() {
+    html_individual_config.useHtmlIndividualConfiguration();
+    unittest$.group('supported', dart.fn(() => {
+      unittest$.test('supported', dart.fn(() => {
+        src__matcher__expect.expect(html.RtcPeerConnection[dartx.supported], true);
+      }, VoidTodynamic()));
+    }, VoidTovoid()));
+    unittest$.group('functionality', dart.fn(() => {
+      if (dart.test(html.RtcPeerConnection[dartx.supported])) {
+        unittest$.test('peer connection', dart.fn(() => {
+          let pc = html.RtcPeerConnection.new(dart.map({iceServers: JSArrayOfMapOfString$String().of([dart.map({url: 'stun:216.93.246.18:3478'})])}));
+          src__matcher__expect.expect(html.RtcPeerConnection.is(pc), src__matcher__core_matchers.isTrue);
+        }, VoidTodynamic()));
+        unittest$.test('ice candidate', dart.fn(() => {
+          let candidate = html.RtcIceCandidate.new(dart.map({sdpMLineIndex: 1, candidate: 'hello'}));
+          src__matcher__expect.expect(html.RtcIceCandidate.is(candidate), src__matcher__core_matchers.isTrue);
+        }, VoidTodynamic()));
+        unittest$.test('session description', dart.fn(() => {
+          let description = html.RtcSessionDescription.new(dart.map({sdp: 'foo', type: 'offer'}));
+          src__matcher__expect.expect(html.RtcSessionDescription.is(description), src__matcher__core_matchers.isTrue);
+        }, VoidTodynamic()));
+      }
+    }, VoidTovoid()));
+  };
+  dart.fn(rtc_test.main, VoidTodynamic());
+  // Exports:
+  exports.rtc_test = rtc_test;
+});