LayoutTests/fast/css/nth-child-no-mutations.html - Issue 198783003: Recalc sibling styles for forward positional rules on mutations only.

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Unified Diff: LayoutTests/fast/css/nth-child-no-mutations.html

Issue 198783003: Recalc sibling styles for forward positional rules on mutations only. (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: Fixed review issue. Created 6 years, 9 months ago

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Index: LayoutTests/fast/css/nth-child-no-mutations.html

diff --git a/LayoutTests/fast/css/nth-child-no-mutations.html b/LayoutTests/fast/css/nth-child-no-mutations.html

new file mode 100644

index 0000000000000000000000000000000000000000..f18919eaca3df4d3f30ef499e895d7a134dee899

--- /dev/null

+++ b/LayoutTests/fast/css/nth-child-no-mutations.html

@@ -0,0 +1,30 @@

+<!DOCTYPE html>

+<script src="../../resources/js-test.js"></script>

+<style>

+ #test :nth-child(odd) { color: green; }

+ #test :not(.a) { color: rgb(200, 200, 200); }

+</style>

+<div id="test">

+ <div></div>

+</div>

+<script>

+description("Not necessary to recalc sibling styles for :nth-child when no mutations have happened.");

+document.body.offsetTop;

+var testElm = document.querySelector("#test div");

+testElm.className = "a";

+if (window.internals)

+ shouldBe("internals.updateStyleAndReturnAffectedElementCount()", "1");

+var green = "rgb(0, 128, 0)";

+shouldBe("getComputedStyle(testElm, null).color", "green");

+</script>

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