third_party/WebKit/LayoutTests/fast/css/invalidation/sibling-mutation-min-direct.html - Issue 2116503002: Skip scheduling sibling invalidation based on direct adjacent count.

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Unified Diff: third_party/WebKit/LayoutTests/fast/css/invalidation/sibling-mutation-min-direct.html

Issue 2116503002: Skip scheduling sibling invalidation based on direct adjacent count. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Created 4 years, 6 months ago

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Index: third_party/WebKit/LayoutTests/fast/css/invalidation/sibling-mutation-min-direct.html

diff --git a/third_party/WebKit/LayoutTests/fast/css/invalidation/sibling-mutation-min-direct.html b/third_party/WebKit/LayoutTests/fast/css/invalidation/sibling-mutation-min-direct.html

new file mode 100644

index 0000000000000000000000000000000000000000..ec5d1baa032a946f7eb048e69b7d238ec14c8979

--- /dev/null

+++ b/third_party/WebKit/LayoutTests/fast/css/invalidation/sibling-mutation-min-direct.html

@@ -0,0 +1,47 @@

+<!DOCTYPE html>

+<script src="../../../resources/testharness.js"></script>

+<script src="../../../resources/testharnessreport.js"></script>

+<style>

+ /* Dummy rule for increasing max-direct-adjacent */

+ .x + .x + .x + .x { color: red }

+ span { color: green }

+ .a + .d, .b + .c { color: red }

+</style>

+<div id="insertTest">

+ <span class="a"></span>

+ <span class="b"></span>

+ <span class="c"></span>

+ <span class="d"></span>

+</div>

+<div id="removeTest">

+ <span class="a"></span>

+ <span class="b"></span>

+ <span class="c"></span>

+ <span class="d"></span>

+</div>

+<script>

+ test(() =>

+ assert_not_equals(window.internals, undefined, "Check that window.internals is defined.")

+ , "window.internals required for tests.");

+ test(() => {

+ var c = insertTest.querySelector(".c");

+ assert_equals(getComputedStyle(c).color, "rgb(255, 0, 0)", "Check that .c is initially red.");

+ insertTest.insertBefore(document.createElement("span"), c);

+ assert_equals(internals.updateStyleAndReturnAffectedElementCount(), 2, "Recalc for the inserted element and .c.");

+ assert_equals(getComputedStyle(c).color, "rgb(0, 128, 0)", "Check that .c is green after insertion.");

+ }, "Check that we don't invalidate too much on sibling insertion.");

+ test(() => {

+ var c = removeTest.querySelector(".c");

+ assert_equals(getComputedStyle(c).color, "rgb(255, 0, 0)", "Check that .c is initially red.");

+ removeTest.querySelector(".b").remove();

+ assert_equals(internals.updateStyleAndReturnAffectedElementCount(), 1, "Recalc for .c.");

+ assert_equals(getComputedStyle(c).color, "rgb(0, 128, 0)", "Check that .c is green after .b is removed.");

+ }, "Check that we don't invalidate too much on sibling removal.");

+</script>

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