Index: LayoutTests/imported/w3c/web-platform-tests/intersection-observer/multiple-targets.html |
diff --git a/LayoutTests/imported/w3c/web-platform-tests/intersection-observer/multiple-targets.html b/LayoutTests/imported/w3c/web-platform-tests/intersection-observer/multiple-targets.html |
new file mode 100644 |
index 0000000000000000000000000000000000000000..525c5a699d1cc51080bebc650ae377b26c2fe7eb |
--- /dev/null |
+++ b/LayoutTests/imported/w3c/web-platform-tests/intersection-observer/multiple-targets.html |
@@ -0,0 +1,80 @@ |
+<!DOCTYPE html> |
+<script src="/resources/testharness.js"></script> |
+<script src="/resources/testharnessreport.js"></script> |
+<script src="./resources/intersection-observer-test-utils.js"></script> |
+ |
+<style> |
+pre, #log { |
+ position: absolute; |
+ top: 0; |
+ left: 200px; |
+} |
+.spacer { |
+ height: calc(100vh + 100px); |
+} |
+.target { |
+ width: 100px; |
+ height: 100px; |
+ margin: 10px; |
+ background-color: green; |
+} |
+</style> |
+ |
+<div class="spacer"></div> |
+<div id="target1" class="target"></div> |
+<div id="target2" class="target"></div> |
+<div id="target3" class="target"></div> |
+ |
+<script> |
+var entries = []; |
+var target1, target2, target3; |
+ |
+runTestCycle(function() { |
+ target1 = document.getElementById("target1"); |
+ assert_true(!!target1, "target1 exists."); |
+ target2 = document.getElementById("target2"); |
+ assert_true(!!target2, "target2 exists."); |
+ target3 = document.getElementById("target3"); |
+ assert_true(!!target3, "target3 exists."); |
+ var observer = new IntersectionObserver(function(changes) { |
+ entries = entries.concat(changes) |
+ }); |
+ observer.observe(target1); |
+ observer.observe(target2); |
+ observer.observe(target3); |
+ entries = entries.concat(observer.takeRecords()); |
+ assert_equals(entries.length, 0, "No initial notifications."); |
+ runTestCycle(step0, "First rAF."); |
+}, "One observer with multiple targets."); |
+ |
+function step0() { |
+ document.scrollingElement.scrollTop = 150; |
+ runTestCycle(step1, "document.scrollingElement.scrollTop = 150"); |
+ assert_equals(entries.length, 3, "Three initial notifications."); |
+ assert_equals(entries[0].target, target1, "entries[0].target === target1"); |
+ assert_equals(entries[1].target, target2, "entries[1].target === target2"); |
+ assert_equals(entries[2].target, target3, "entries[2].target === target3"); |
+} |
+ |
+function step1() { |
+ document.scrollingElement.scrollTop = 10000; |
+ runTestCycle(step2, "document.scrollingElement.scrollTop = 10000"); |
+ assert_equals(entries.length, 4, "Four notifications."); |
+ assert_equals(entries[3].target, target1, "entries[3].target === target1"); |
+} |
+ |
+function step2() { |
+ document.scrollingElement.scrollTop = 0; |
+ runTestCycle(step3, "document.scrollingElement.scrollTop = 0"); |
+ assert_equals(entries.length, 6, "Six notifications."); |
+ assert_equals(entries[4].target, target2, "entries[4].target === target2"); |
+ assert_equals(entries[5].target, target3, "entries[5].target === target3"); |
+} |
+ |
+function step3() { |
+ assert_equals(entries.length, 9, "Nine notifications."); |
+ assert_equals(entries[6].target, target1, "entries[6].target === target1"); |
+ assert_equals(entries[7].target, target2, "entries[7].target === target2"); |
+ assert_equals(entries[8].target, target3, "entries[8].target === target3"); |
+} |
+</script> |