1 files changed, 20 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-layout-api/position-fragment/support/layout-position-child-worklet.js b/testing/web-platform/tests/css/css-layout-api/position-fragment/support/layout-position-child-worklet.js
new file mode 100644
index 0000000000..7d5c494952
--- /dev/null
+++ b/testing/web-platform/tests/css/css-layout-api/position-fragment/support/layout-position-child-worklet.js
@@ -0,0 +1,20 @@
+registerLayout('test', class {
+  static get childInputProperties() {
+    return [
+      '--inline-offset',
+      '--block-offset',
+    ];
+  }
+
+  async intrinsicSizes() {}
+  async layout(children, edges, constraints, styleMap) {
+    const childFragments = await Promise.all(children.map((child) => child.layoutNextFragment({})));
+
+    for (let i = 0; i < children.length; i++) {
+      childFragments[i].inlineOffset = parseInt(children[i].styleMap.get('--inline-offset').toString());
+      childFragments[i].blockOffset = parseInt(children[i].styleMap.get('--block-offset').toString());
+    }
+
+    return {autoBlockSize: 0, childFragments};
+  }
+});