| Index: third_party/WebKit/LayoutTests/fast/selectors/querySelector-pseudo-slotted.html
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| diff --git a/third_party/WebKit/LayoutTests/fast/selectors/querySelector-pseudo-slotted.html b/third_party/WebKit/LayoutTests/fast/selectors/querySelector-pseudo-slotted.html
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| new file mode 100644
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| index 0000000000000000000000000000000000000000..331d91f80191a21dc1bd0192a70a3315472cd739
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| --- /dev/null
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| +++ b/third_party/WebKit/LayoutTests/fast/selectors/querySelector-pseudo-slotted.html
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| @@ -0,0 +1,25 @@
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| +<!DOCTYPE html>
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| +<script src="../../resources/testharness.js"></script>
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| +<script src="../../resources/testharnessreport.js"></script>
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| +<script src="../dom/shadow/resources/shadow-dom.js"></script>
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| +<div id="host1">
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| +  <template data-mode="open">
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| +    <slot name="slot1"></slot>
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| +  </template>
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| +  <span slot="slot1" id="span1"></span>
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| +  <span slot="slot1" id="span2"></span>
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| +</div>
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| +<script>
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| +convertTemplatesToShadowRootsWithin(host1);
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| +document.body.offsetLeft;
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| +
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| +test(() => {
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| +  assert_equals(document.querySelector('::slotted(span)'), null);
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| +  assert_equals(host1.shadowRoot.querySelector('::slotted(span)'), null);
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| +}, "querySelector for ::slotted pseudo element");
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| +
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| +test(() => {
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| +  assert_equals(document.querySelectorAll('::slotted(span)').length, 0);
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| +  assert_equals(host1.shadowRoot.querySelectorAll('::slotted(span)').length, 0);
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| +}, "querySelectorAll for ::slotted pseudo element");
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| +</script>
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| 
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