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diff --git a/deps/v8/test/mjsunit/async-hooks/async-await-tree.js b/deps/v8/test/mjsunit/async-hooks/async-await-tree.js
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+// Copyright 2018 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --expose-async-hooks
+
+// Check for async/await asyncIds relation
+(function() {
+  let asyncIds = [], triggerIds = [];
+  let ah = async_hooks.createHook({
+    init(asyncId, type, triggerAsyncId, resource) {
+      if (type !== 'PROMISE') {
+        return;
+      }
+      asyncIds.push(asyncId);
+      triggerIds.push(triggerAsyncId);
+    },
+  });
+  ah.enable();
+
+  // Simplified version of Node.js util.promisify(setTimeout)
+  function sleep(callback, timeout) {
+    const promise = new Promise(function(resolve, reject) {
+      try {
+        setTimeout((err, ...values) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(values[0]);
+          }
+        }, timeout);
+      } catch (err) {
+        reject(err);
+      }
+    });
+    return promise;
+  }
+
+  async function foo() {
+    await sleep(10);
+  }
+
+  foo().then(function() {
+    assertEquals(asyncIds.length, 6);
+    assertEquals(triggerIds.length, 6);
+    assertEquals(triggerIds[2], asyncIds[0]);
+    assertEquals(triggerIds[3], asyncIds[2]);
+    assertEquals(triggerIds[4], asyncIds[0]);
+    assertEquals(triggerIds[5], asyncIds[1]);
+  });
+})();