Check in codegen test expectations.

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

+dart_library.library('lib/html/event_test', null, /* Imports */[
+  'dart_sdk',
+  'unittest'
+], function load__event_test(exports, dart_sdk, unittest) {
+  'use strict';
+  const core = dart_sdk.core;
+  const html = dart_sdk.html;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const unittest$ = unittest.unittest;
+  const src__matcher__expect = unittest.src__matcher__expect;
+  const src__matcher__core_matchers = unittest.src__matcher__core_matchers;
+  const html_config = unittest.html_config;
+  const event_test = Object.create(null);
+  let VoidToEvent = () => (VoidToEvent = dart.constFn(dart.functionType(html.Event, [])))();
+  let dynamicTovoid = () => (dynamicTovoid = dart.constFn(dart.functionType(dart.void, [dart.dynamic])))();
+  let dynamicTovoid$ = () => (dynamicTovoid$ = dart.constFn(dart.definiteFunctionType(dart.void, [dart.dynamic])))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  let StringAndFnAndFn__Todynamic = () => (StringAndFnAndFn__Todynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [core.String, VoidToEvent(), dynamicTovoid()], [core.String])))();
+  let VoidToCompositionEvent = () => (VoidToCompositionEvent = dart.constFn(dart.definiteFunctionType(html.CompositionEvent, [])))();
+  let VoidToEvent$ = () => (VoidToEvent$ = dart.constFn(dart.definiteFunctionType(html.Event, [])))();
+  let VoidToHashChangeEvent = () => (VoidToHashChangeEvent = dart.constFn(dart.definiteFunctionType(html.HashChangeEvent, [])))();
+  let VoidToMouseEvent = () => (VoidToMouseEvent = dart.constFn(dart.definiteFunctionType(html.MouseEvent, [])))();
+  let VoidToStorageEvent = () => (VoidToStorageEvent = dart.constFn(dart.definiteFunctionType(html.StorageEvent, [])))();
+  let VoidToUIEvent = () => (VoidToUIEvent = dart.constFn(dart.definiteFunctionType(html.UIEvent, [])))();
+  let VoidToWheelEvent = () => (VoidToWheelEvent = dart.constFn(dart.definiteFunctionType(html.WheelEvent, [])))();
+  event_test.eventTest = function(name, eventFn, validate, type) {
+    if (type === void 0) type = 'foo';
+    unittest$.test(name, dart.fn(() => {
+      let el = html.Element.tag('div');
+      let fired = false;
+      el[dartx.on].get(type).listen(dart.fn(ev => {
+        fired = true;
+        dart.dcall(validate, ev);
+      }, dynamicTovoid$()));
+      el[dartx.dispatchEvent](eventFn());
+      src__matcher__expect.expect(fired, src__matcher__core_matchers.isTrue, {reason: 'Expected event to be dispatched.'});
+    }, VoidTodynamic()));
+  };
+  dart.fn(event_test.eventTest, StringAndFnAndFn__Todynamic());
+  event_test.main = function() {
+    html_config.useHtmlConfiguration();
+    event_test.eventTest('CompositionEvent', dart.fn(() => html.CompositionEvent.new('compositionstart', {view: html.window, data: 'data'}), VoidToCompositionEvent()), dart.fn(ev => {
+      src__matcher__expect.expect(dart.dload(ev, 'data'), 'data');
+    }, dynamicTovoid$()), 'compositionstart');
+    event_test.eventTest('Event', dart.fn(() => html.Event.new('foo', {canBubble: false, cancelable: false}), VoidToEvent$()), dart.fn(ev => {
+      src__matcher__expect.expect(dart.dload(ev, 'type'), src__matcher__core_matchers.equals('foo'));
+      src__matcher__expect.expect(dart.dload(ev, 'bubbles'), src__matcher__core_matchers.isFalse);
+      src__matcher__expect.expect(dart.dload(ev, 'cancelable'), src__matcher__core_matchers.isFalse);
+    }, dynamicTovoid$()));
+    event_test.eventTest('HashChangeEvent', dart.fn(() => html.HashChangeEvent.new('foo', {oldUrl: 'http://old.url', newUrl: 'http://new.url'}), VoidToHashChangeEvent()), dart.fn(ev => {
+      src__matcher__expect.expect(dart.dload(ev, 'oldUrl'), src__matcher__core_matchers.equals('http://old.url'));
+      src__matcher__expect.expect(dart.dload(ev, 'newUrl'), src__matcher__core_matchers.equals('http://new.url'));
+    }, dynamicTovoid$()));
+    event_test.eventTest('MouseEvent', dart.fn(() => html.MouseEvent.new('foo', {view: html.window, detail: 1, screenX: 2, screenY: 3, clientX: 4, clientY: 5, button: 6, ctrlKey: true, altKey: true, shiftKey: true, metaKey: true, relatedTarget: html.document[dartx.body]}), VoidToMouseEvent()), dart.fn(ev => {
+      src__matcher__expect.expect(dart.dload(ev, 'detail'), 1);
+      src__matcher__expect.expect(dart.dload(dart.dload(ev, 'screen'), 'x'), 2);
+      src__matcher__expect.expect(dart.dload(dart.dload(ev, 'screen'), 'y'), 3);
+      src__matcher__expect.expect(dart.dload(dart.dload(ev, 'client'), 'x'), 4);
+      src__matcher__expect.expect(dart.dload(dart.dload(ev, 'client'), 'y'), 5);
+      src__matcher__expect.expect(dart.dload(dart.dload(ev, 'offset'), 'x'), 4);
+      src__matcher__expect.expect(dart.dload(dart.dload(ev, 'offset'), 'y'), 5);
+      src__matcher__expect.expect(dart.dload(ev, 'button'), 6);
+      src__matcher__expect.expect(dart.dload(ev, 'ctrlKey'), src__matcher__core_matchers.isTrue);
+      src__matcher__expect.expect(dart.dload(ev, 'altKey'), src__matcher__core_matchers.isTrue);
+      src__matcher__expect.expect(dart.dload(ev, 'shiftKey'), src__matcher__core_matchers.isTrue);
+      src__matcher__expect.expect(dart.dload(ev, 'metaKey'), src__matcher__core_matchers.isTrue);
+    }, dynamicTovoid$()));
+    event_test.eventTest('StorageEvent', dart.fn(() => html.StorageEvent.new('foo', {key: 'key', url: 'http://example.url', storageArea: html.window[dartx.localStorage], canBubble: true, cancelable: true, oldValue: 'old', newValue: 'new'}), VoidToStorageEvent()), dart.fn(ev => {
+      src__matcher__expect.expect(dart.dload(ev, 'key'), 'key');
+      src__matcher__expect.expect(dart.dload(ev, 'url'), 'http://example.url');
+      src__matcher__expect.expect(dart.dload(ev, 'storageArea'), src__matcher__core_matchers.isNotNull);
+      src__matcher__expect.expect(dart.dload(ev, 'oldValue'), 'old');
+      src__matcher__expect.expect(dart.dload(ev, 'newValue'), 'new');
+    }, dynamicTovoid$()));
+    event_test.eventTest('UIEvent', dart.fn(() => html.UIEvent.new('foo', {view: html.window, detail: 12}), VoidToUIEvent()), dart.fn(ev => {
+      src__matcher__expect.expect(html.window, dart.dload(ev, 'view'));
+      src__matcher__expect.expect(12, dart.dload(ev, 'detail'));
+    }, dynamicTovoid$()));
+    event_test.eventTest('WheelEvent', dart.fn(() => html.WheelEvent.new("mousewheel", {deltaX: 1, deltaY: 0, detail: 4, screenX: 3, screenY: 4, clientX: 5, clientY: 6, ctrlKey: true, altKey: true, shiftKey: true, metaKey: true}), VoidToWheelEvent()), dart.fn(ev => {
+      src__matcher__expect.expect(dart.dload(ev, 'deltaX'), 1);
+      src__matcher__expect.expect(dart.dload(ev, 'deltaY'), 0);
+      src__matcher__expect.expect(dart.dload(dart.dload(ev, 'screen'), 'x'), 3);
+      src__matcher__expect.expect(dart.dload(dart.dload(ev, 'screen'), 'y'), 4);
+      src__matcher__expect.expect(dart.dload(dart.dload(ev, 'client'), 'x'), 5);
+      src__matcher__expect.expect(dart.dload(dart.dload(ev, 'client'), 'y'), 6);
+      src__matcher__expect.expect(dart.dload(ev, 'ctrlKey'), src__matcher__core_matchers.isTrue);
+      src__matcher__expect.expect(dart.dload(ev, 'altKey'), src__matcher__core_matchers.isTrue);
+      src__matcher__expect.expect(dart.dload(ev, 'shiftKey'), src__matcher__core_matchers.isTrue);
+      src__matcher__expect.expect(dart.dload(ev, 'metaKey'), src__matcher__core_matchers.isTrue);
+    }, dynamicTovoid$()), 'mousewheel');
+  };
+  dart.fn(event_test.main, VoidTodynamic());
+  // Exports:
+  exports.event_test = event_test;
+});