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Unified Diff: LayoutTests/fast/hidpi/image-srcset-change-dynamically-from-js-2x.html

Issue 23861003: Enable srcset support in HTMLImageElement (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Fixed a flaky test Created 7 years, 3 months ago
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Index: LayoutTests/fast/hidpi/image-srcset-change-dynamically-from-js-2x.html
diff --git a/LayoutTests/fast/hidpi/image-srcset-change-dynamically-from-js-2x.html b/LayoutTests/fast/hidpi/image-srcset-change-dynamically-from-js-2x.html
new file mode 100644
index 0000000000000000000000000000000000000000..b6ff47540e40a731af2f75d349558c160a71853a
--- /dev/null
+++ b/LayoutTests/fast/hidpi/image-srcset-change-dynamically-from-js-2x.html
@@ -0,0 +1,33 @@
+<html>
+<head>
+<script src="resources/srcset-helper.js"></script>
+<script src="../js/resources/js-test-pre.js"></script>
+<script>
+ if (window.testRunner) {
+ testRunner.dumpAsText();
+ }
+
+ function updateSrc() {
+ var img = document.getElementById("foo");
+ // srcset must be set first, otherwise 'src' is loaded as well
+ img.srcset = "resources/green-200-px-square.png 2x";
+ img.src = "resources/blue-100-px-square.png"
+ }
+
+ addEventListener("DOMContentLoaded", function() {
+ updateSrc();
+ }, false);
+ addEventListener("load", function() {
+ if (internals)
+ shouldBeFalse('internals.isPreloaded("resources/blue-100-px-square.png")');
+ shouldBeTrue('document.getElementById("foo").clientWidth==200');
+ }, false);
+</script>
+</head>
+
+<body id="body">
+ <div>This test passes if this img tag below is a green square when the scale factor is 2.
+ It ensures that attributes can be changed dynamically from javascript, and that only the correct resource is loaded.</div>
+ <img id="foo">
+</body>
+</html>

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