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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /testing/web-platform/tests/intersection-observer/scroll-margin-percent.html
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/intersection-observer/scroll-margin-percent.html')
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diff --git a/testing/web-platform/tests/intersection-observer/scroll-margin-percent.html b/testing/web-platform/tests/intersection-observer/scroll-margin-percent.html
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+++ b/testing/web-platform/tests/intersection-observer/scroll-margin-percent.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<meta name="viewport" content="width=device-width,initial-scale=1">
+<link rel="help" href="https://www.w3.org/TR/intersection-observer/#dom-intersectionobserver-scrollmargin">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./resources/intersection-observer-test-utils.js"></script>
+
+<style>
+#scroller { width: 100px; height: 100px; overflow: hidden; background-color: gray; }
+#spacer { width: 50px; height: 100px; }
+#target { width: 50px; height: 50px; background-color: green; }
+</style>
+
+<div id=scroller>
+ <div id=spacer></div>
+ <div id=target></div>
+</div>
+
+<script>
+let entries = [];
+
+window.onload = function() {
+ runTestCycle(testIntersection, "Test scroll margin intersection");
+
+ const observer = new IntersectionObserver(
+ es => entries = entries.concat(es),
+ {
+ scrollMargin: "10%"
+ }
+ );
+ observer.observe(target);
+};
+
+function testIntersection() {
+ assert_equals(entries.length, 1, "IntersectionObserverEntryCount");
+ assert_true(entries[0].isIntersecting, "isIntersecting");
+ assert_approx_equals(entries[0].intersectionRatio, 0.2, 0.001, "intersectionRatio");
+}
+</script>