Index: third_party/WebKit/LayoutTests/custom-elements/imports/imports-and-synchronous-create.html |
diff --git a/third_party/WebKit/LayoutTests/custom-elements/imports/imports-and-synchronous-create.html b/third_party/WebKit/LayoutTests/custom-elements/imports/imports-and-synchronous-create.html |
new file mode 100644 |
index 0000000000000000000000000000000000000000..8c487c2a62e29cf2971190aea654485029833bfa |
--- /dev/null |
+++ b/third_party/WebKit/LayoutTests/custom-elements/imports/imports-and-synchronous-create.html |
@@ -0,0 +1,44 @@ |
+<!DOCTYPE html> |
+<script src="../../resources/testharness.js"></script> |
+<script src="../../resources/testharnessreport.js"></script> |
+<script> |
+'use strict'; |
+ |
+let reactions = []; |
+ |
+test(() => { |
+ customElements.define('x-x', class extends HTMLElement { |
+ constructor() { |
+ super(); |
+ reactions.push({ type: 'constructor', element: this }); |
+ } |
+ }); |
+ assert_array_equals(reactions, []); |
+}, 'Should not have parsed <x-x> yet'); |
+</script> |
+ |
+<x-x></x-x> |
+ |
+<script> |
+'use strict'; |
+ |
+async_test((test) => { |
+ test.step(() => { |
+ assert_equals(reactions.length, 1); |
+ }, 'Parser should invoke the custom element constructor'); |
+ |
+ let import1 = document.createElement('link'); |
+ import1.rel = 'import'; |
+ import1.href = 'resources/import-custom.html'; |
+ document.head.appendChild(import1); |
+ |
+ import1.onload = test.step_func_done(() => { |
+ let elementsInMaster = document.querySelector('x-x'); |
+ let elementsInImport = import1.import.querySelector('x-x'); |
+ let elements = reactions.map(e => e.element); |
+ |
+ assert_array_equals(elements, [elementsInMaster, elementsInImport], |
+ 'Constructor should run in the order elements are created'); |
+ }); |
+}, 'Constructor should run in the order elements are created'); |
+</script> |