Check in codegen test expectations.

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

Index: test/codegen/expect/lib/html/canvas_test.js
diff --git a/test/codegen/expect/lib/html/canvas_test.js b/test/codegen/expect/lib/html/canvas_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..fd29a225f74a03db055cabc1f8a5dbdf3fec3517
--- /dev/null
+++ b/test/codegen/expect/lib/html/canvas_test.js
@@ -0,0 +1,67 @@
+dart_library.library('lib/html/canvas_test', null, /* Imports */[
+  'dart_sdk',
+  'unittest'
+], function load__canvas_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_config = unittest.html_config;
+  const unittest$ = unittest.unittest;
+  const src__matcher__expect = unittest.src__matcher__expect;
+  const src__matcher__core_matchers = unittest.src__matcher__core_matchers;
+  const canvas_test = Object.create(null);
+  let JSArrayOfint = () => (JSArrayOfint = dart.constFn(_interceptors.JSArray$(core.int)))();
+  let EventTovoid = () => (EventTovoid = dart.constFn(dart.functionType(dart.void, [html.Event])))();
+  let ListOfint = () => (ListOfint = dart.constFn(core.List$(core.int)))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  let dynamicTodynamic = () => (dynamicTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [dart.dynamic])))();
+  let EventTovoid$ = () => (EventTovoid$ = dart.constFn(dart.definiteFunctionType(dart.void, [html.Event])))();
+  let ListOfintAndintAndListOfintTovoid = () => (ListOfintAndintAndListOfintTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [ListOfint(), core.int, ListOfint()])))();
+  canvas_test.main = function() {
+    let canvas = null;
+    let context = null;
+    let width = 100;
+    let height = 100;
+    canvas = html.CanvasElement.new({width: width, height: height});
+    html.document[dartx.body][dartx.append](canvas);
+    context = canvas[dartx.context2D];
+    html_config.useHtmlConfiguration();
+    unittest$.test('CreateImageData', dart.fn(() => {
+      let image = context[dartx.createImageData](canvas[dartx.width], canvas[dartx.height]);
+      let data = image[dartx.data];
+      src__matcher__expect.expect(data, src__matcher__core_matchers.hasLength(40000));
+      canvas_test.checkPixel(data, 0, JSArrayOfint().of([0, 0, 0, 0]));
+      canvas_test.checkPixel(data, width * height - 1, JSArrayOfint().of([0, 0, 0, 0]));
+      data[dartx.set](100, 200);
+      src__matcher__expect.expect(data[dartx.get](100), src__matcher__core_matchers.equals(200));
+    }, VoidTodynamic()));
+    unittest$.test('toDataUrl', dart.fn(() => {
+      let canvas = html.CanvasElement.new({width: 100, height: 100});
+      let context = canvas[dartx.context2D];
+      context[dartx.fillStyle] = 'red';
+      context[dartx.fill]();
+      let url = canvas[dartx.toDataUrl]();
+      let img = html.ImageElement.new();
+      img[dartx.onLoad].listen(EventTovoid()._check(unittest$.expectAsync(dart.fn(_ => {
+        src__matcher__expect.expect(img[dartx.complete], true);
+      }, dynamicTodynamic()))));
+      img[dartx.onError].listen(dart.fn(_ => {
+        src__matcher__expect.fail('URL failed to load.');
+      }, EventTovoid$()));
+      img[dartx.src] = url;
+    }, VoidTodynamic()));
+  };
+  dart.fn(canvas_test.main, VoidTodynamic());
+  canvas_test.checkPixel = function(data, offset, rgba) {
+    offset = dart.notNull(offset) * 4;
+    for (let i = 0; i < 4; ++i) {
+      src__matcher__expect.expect(data[dartx.get](dart.notNull(offset) + i), src__matcher__core_matchers.equals(rgba[dartx.get](i)));
+    }
+  };
+  dart.fn(canvas_test.checkPixel, ListOfintAndintAndListOfintTovoid());
+  // Exports:
+  exports.canvas_test = canvas_test;
+});