Add a basic test for imperative shadow dom distribution API, which fails at this point

See crbug.com/869308 for details. Bug: 869308 Change-Id: Ie83796a1e281dcdc25267637ddfe2d7b1d658da3 Reviewed-on: https://chromium-review.googlesource.com/1164152Reviewed-by: Rakina Zata Amni <rakina@chromium.org> Commit-Queue: Hayato Ito <hayato@chromium.org> Cr-Commit-Position: refs/heads/master@{#581123}

Add a basic test for imperative shadow dom distribution API, which fails at this point
See crbug.com/869308 for details. Bug: 869308 Change-Id: Ie83796a1e281dcdc25267637ddfe2d7b1d658da3 Reviewed-on: https://chromium-review.googlesource.com/1164152Reviewed-by: Rakina Zata Amni <rakina@chromium.org> Commit-Queue: Hayato Ito <hayato@chromium.org> Cr-Commit-Position: refs/heads/master@{#581123}
4a9072bd · Hayato Ito · Commit Bot · 14de10b2 · 4a9072bd · 4a9072bd
Commit 4a9072bd authored Aug 07, 2018 by Hayato Ito Committed by Commit Bot Aug 07, 2018
2 changed files
--- a/third_party/WebKit/LayoutTests/TestExpectations
+++ b/third_party/WebKit/LayoutTests/TestExpectations
@@ -1899,6 +1899,7 @@ crbug.com/404597 fast/forms/long-text-in-input.html [ Skip ]

 # Web Components related tests (Shadow DOM, Custom Elements) failures.
 crbug.com/392771 external/wpt/shadow-dom/untriaged/styles/test-003.html [ Failure ]
+crbug.com/869308 shadow-dom/imperative-api.html [ Failure ]

 crbug.com/552494 virtual/prefer_compositing_to_lcd_text/scrollbars/overflow-scrollbar-combinations.html [ Pass Failure ]


--- a/third_party/WebKit/LayoutTests/shadow-dom/imperative-api.html
+++ b/third_party/WebKit/LayoutTests/shadow-dom/imperative-api.html
+<!DOCTYPE html>
+<!--
+Tests for Imperative Shadow DOM Distribution API.
+See https://crbug.com/869308
+-->
+<script src="../resources/testharness.js"></script>
+<script src="../resources/testharnessreport.js"></script>
+<div id="host">
+  <div id="child1"></div>
+</div>
+
+<script>
+const host = document.querySelector('#host');
+const child1 = document.querySelector('#child1');
+const shadow_root = host.attachShadow({ mode: 'open', slotting: 'manual' });
+const slot1 = document.createElement('slot');
+shadow_root.appendChild(slot1);
+
+test(() => {
+  assert_equals(child1.assignedSlot, null);
+  assert_array_equals(slot1.assignedElements(), []);
+
+  slot1.assign([child1]);
+
+  assert_equals(child1.assignedSlot, slot1);
+  assert_array_equals(slot1.assignedElements(), [child1]);
+}, 'slot.assign(nodes) should work');
+</script>