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Unified Diff: third_party/WebKit/LayoutTests/external/wpt/image-decodes/image-decode.html

Issue 2769823002: Add decode() functionality to image elements. (Closed)
Patch Set: update Created 3 years, 9 months ago
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Index: third_party/WebKit/LayoutTests/external/wpt/image-decodes/image-decode.html
diff --git a/third_party/WebKit/LayoutTests/external/wpt/image-decodes/image-decode.html b/third_party/WebKit/LayoutTests/external/wpt/image-decodes/image-decode.html
new file mode 100644
index 0000000000000000000000000000000000000000..6b5740012744c4cf36c775bd20e7c296ff7b1402
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/external/wpt/image-decodes/image-decode.html
@@ -0,0 +1,249 @@
+<!DOCTYPE html>
+<meta charset=utf-8>
+<meta name="timeout" content="long">
+<title>img.decode()</title>
+<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
+<link rel=help href="">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+
+<script>
+"use strict";
+
+// Basic png decode success test.
+promise_test(function() {
+ var message = "PNG Image must be decoded";
+ var resolved = false;
+ var rejected = false;
+
+ var img = new Image();
+ img.src = "/images/green.png";
+ return img.decode().then(
domenic 2017/03/23 07:49:20 You should just do `return img.decode()`. promise_
+ function() { resolved = true; },
+ function() { rejected = true; }
+ ).then(
+ function() {
+ assert_true(resolved, message);
+ assert_false(rejected, message);
+ }
+ );
+});
+
+// Basic svg decode success test.
+promise_test(function() {
+ var message = "SVG Image must be decoded";
+ var resolved = false;
+ var rejected = false;
+
+ var img = new Image();
+ img.src = "/images/green.svg";
+ return img.decode().then(
+ function() { resolved = true; },
+ function() { rejected = true; }
+ ).then(
+ function() {
+ assert_true(resolved, message);
+ assert_false(rejected, message);
+ }
+ );
+});
+
+// Non existent path failure.
+promise_test(function() {
+ var message = "Non-existent path must be rejected.";
+ var resolved = false;
+ var rejected = false;
+
+ var img = new Image();
+ img.src = "/non/existent/path.png";
+ return img.decode().then(
domenic 2017/03/23 07:49:20 The way to test promise rejections is with `return
+ function() { resolved = true; },
+ function(e) {
+ assert_equals(e.name, "EncodingError");
+ rejected = true;
+ }
+ ).then(
+ function() {
+ assert_false(resolved, message);
+ assert_true(rejected, message);
+ }
+ );
+});
+
+// src-less image decode failure.
+promise_test(function() {
+ var message = "src-less images must fail decodes.";
+ var resolved = false;
+ var rejected = false;
+
+ var img = new Image();
+ return img.decode().then(
+ function() { resolved = true; },
+ function(e) {
+ assert_equals(e.name, "EncodingError");
+ rejected = true;
+ }
+ ).then(
+ function() {
+ assert_false(resolved, message);
+ assert_true(rejected, message);
+ }
+ )
+});
+
+// src changes causes a decode failure.
+promise_test(function() {
+ var message = "src changes must fail decodes.";
+ var resolved = false;
+ var rejected = false;
+
+ var img = new Image();
+ img.src = "/images/green.png";
+ var promise = img.decode().then(
+ function() { resolved = true; },
+ function(e) {
+ assert_equals(e.name, "EncodingError");
+ rejected = true;
+ }
+ );
+ img.src = "/images/green.svg";
+ return promise.then(
+ function() {
+ assert_false(resolved, message);
+ assert_true(rejected, message);
+ }
+ )
+});
+
+// src changes causes a decode failure, following good decodes succeed.
+promise_test(function() {
+ var message = "src changes must fail decodes, following good decodes must succeed."
+ var resolved_count = 0;
+ var rejected_count = 0;
+ var decode_request_count = 2;
+
+ var do_resolve = function(resolve) {
+ ++resolved_count;
+ if (resolved_count + rejected_count == decode_request_count)
+ resolve();
+ }
+ var do_reject = function(resolve) {
+ ++rejected_count;
+ if (resolved_count + rejected_count == decode_request_count)
+ resolve();
+ }
+
+ return new Promise(function(resolve, _) {
domenic 2017/03/23 07:49:19 This promise thing is best done via ``` const img
+ var img = new Image();
+ img.src = "/images/green.png";
+ img.decode().then(
+ function() { do_resolve(resolve); },
+ function() { do_reject(resolve); }
+ );
+ img.src = "/images/green.svg";
+ img.decode().then(
+ function() { do_resolve(resolve); },
+ function() { do_reject(resolve); }
+ );
+ }).then(function() {
+ assert_equals(resolved_count, 1, message);
+ assert_equals(rejected_count, 1, message);
+ });
+});
+
+// src changes causes a decode failure, following bad decodes also fail.
+promise_test(function() {
+ var message = "src changes must fail decodes, following bad decodes also fail.";
+ var resolved_count = 0;
+ var rejected_count = 0;
+ var decode_request_count = 2;
+
+ var do_resolve = function(resolve) {
+ ++resolved_count;
+ if (resolved_count + rejected_count == decode_request_count)
+ resolve();
+ }
+ var do_reject = function(resolve) {
+ ++rejected_count;
+ if (resolved_count + rejected_count == decode_request_count)
+ resolve();
+ }
+
+ return new Promise(function(resolve, _) {
+ var img = new Image();
+ img.src = "/images/green.png";
+ img.decode().then(
+ function() { do_resolve(resolve); },
+ function() { do_reject(resolve); }
+ );
+ img.src = "/non/existent/path.png";
+ img.decode().then(
+ function() { do_resolve(resolve); },
+ function() { do_reject(resolve); }
+ );
+ }).then(function() {
+ assert_equals(resolved_count, 0, message);
+ assert_equals(rejected_count, decode_request_count, message);
+ });
+});
+
+// src changes to the same path succeed.
+promise_test(function() {
+ var message = "Same src set must succeed decode.";
+ var resolved = false;
+ var rejected = false;
+
+ var img = new Image();
+ img.src = "/images/green.png";
+ var promise = img.decode().then(
+ function() { resolved = true; },
+ function(e) { rejected = true; }
+ );
+ img.src = "/images/green.png";
+ return promise.then(
+ function() {
+ assert_true(resolved, message);
+ assert_false(rejected, message);
+ }
+ )
+});
+
+// Multiple decodes all succeed.
+promise_test(function() {
+ var message = "Multiple decodes must succeed.";
+ var resolved_count = 0;
+ var rejected_count = 0;
+ var decode_request_count = 2;
+
+ var do_resolve = function(resolve) {
+ ++resolved_count;
+ if (resolved_count + rejected_count == decode_request_count)
+ resolve();
+ }
+ var do_reject = function(resolve) {
+ ++rejected_count;
+ if (resolved_count + rejected_count == decode_request_count)
+ resolve();
+ }
+
+ var img = new Image();
+ img.src = "/images/green.png";
+
+ return new Promise(function(resolve, _) {
+ img.decode().then(
+ function() { do_resolve(resolve); },
+ function() { do_reject(resolve); }
+ );
+ img.decode().then(
+ function() { do_resolve(resolve); },
+ function() { do_reject(resolve); }
+ );
+ }).then(function() {
+ assert_equals(resolved_count, decode_request_count, message);
+ assert_equals(rejected_count, 0, message);
+ });
+});
+
+
+</script>
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