| <!DOCTYPE html> |
| <meta charset=utf-8> |
| <meta name="timeout" content="long"> |
| <title>HTMLImageElement.prototype.decode(), picture tests.</title> |
| <link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org"> |
| <link rel=help href="https://html.spec.whatwg.org/multipage/embedded-content.html#dom-img-decode"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| |
| <picture> |
| <source srcset="/images/green.png"> |
| <source srcset="/images/blue.png"> |
| <img id="testimg"> |
| </picture> |
| |
| <script> |
| "use strict"; |
| |
| promise_test(function() { |
| var picture = document.createElement("picture"); |
| var source = document.createElement("source"); |
| var img = document.createElement("img"); |
| |
| picture.appendChild(source); |
| picture.appendChild(img); |
| |
| source.srcset = "/images/green.png"; |
| |
| return img.decode().then(function(arg) { |
| assert_equals(arg, undefined); |
| }); |
| }, document.title + " Image with PNG source decodes with undefined."); |
| |
| promise_test(function() { |
| var img = document.getElementById("testimg"); |
| return img.decode().then(function(arg) { |
| assert_equals(arg, undefined); |
| }); |
| }, document.title + " Image with multiple sources decodes with undefined."); |
| |
| promise_test(function() { |
| var picture = document.createElement("picture"); |
| var source = document.createElement("source"); |
| var img = document.createElement("img"); |
| |
| picture.appendChild(source); |
| picture.appendChild(img); |
| |
| source.srcset = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAIA" + |
| "AAD91JpzAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH4QUSEioKsy" + |
| "AgywAAABl0RVh0Q29tbWVudABDcmVhdGVkIHdpdGggR0lNUFeBDhcAAAAW" + |
| "SURBVAjXY9y3bx8DAwPL58+fGRgYACktBRltLfebAAAAAElFTkSuQmCC"; |
| |
| return img.decode().then(function(arg) { |
| assert_equals(arg, undefined); |
| }); |
| }, document.title + " Image with PNG data URL source decodes with undefined."); |
| |
| promise_test(function() { |
| var picture = document.createElement("picture"); |
| var source = document.createElement("source"); |
| var img = document.createElement("img"); |
| |
| picture.appendChild(source); |
| picture.appendChild(img); |
| |
| source.srcset = "/images/green.svg"; |
| |
| return img.decode().then(function(arg) { |
| assert_equals(arg, undefined); |
| }); |
| }, document.title + " Image with SVG source decodes with undefined."); |
| |
| promise_test(function(t) { |
| var picture = document.createElement("picture"); |
| var source = document.createElement("source"); |
| var img = document.createElement("img"); |
| |
| picture.appendChild(source); |
| picture.appendChild(img); |
| |
| source.srcset = "/non/existent/path.png"; |
| |
| var promise = img.decode(); |
| return promise_rejects_dom(t, "EncodingError", promise); |
| }, document.title + " Non-existent source fails decode."); |
| |
| promise_test(function(t) { |
| var picture = document.createElement("picture"); |
| var source = document.createElement("source"); |
| var img = document.createElement("img"); |
| |
| picture.appendChild(source); |
| picture.appendChild(img); |
| |
| source.srcset = "data:image/png;base64,iVBO00PDR0BADBEEF00KGg"; |
| |
| var promise = img.decode(); |
| return promise_rejects_dom(t, "EncodingError", promise); |
| }, document.title + " Corrupt image in src fails decode."); |
| |
| promise_test(function(t) { |
| var picture = document.createElement("picture"); |
| var source = document.createElement("source"); |
| var img = document.createElement("img"); |
| |
| picture.appendChild(source); |
| picture.appendChild(img); |
| |
| var promise = img.decode(); |
| return promise_rejects_dom(t, "EncodingError", promise); |
| }, document.title + " Image without srcset fails decode."); |
| |
| promise_test(function() { |
| var picture = document.createElement("picture"); |
| var source = document.createElement("source"); |
| var img = document.createElement("img"); |
| |
| picture.appendChild(source); |
| picture.appendChild(img); |
| |
| source.srcset = "/images/green.png"; |
| |
| var first_promise = img.decode(); |
| var second_promise = img.decode(); |
| assert_not_equals(first_promise, second_promise); |
| return Promise.all([ |
| first_promise, |
| second_promise |
| ]); |
| }, document.title + " Multiple decodes for images with src succeed."); |
| |
| </script> |
