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+<!doctype html>
+<meta charset="utf8">
+<title>IndexedDB: committed versionchange transaction lifecycle</title>
+<link rel="help"
+      href="https://w3c.github.io/IndexedDB/#upgrade-transaction-steps">
+<link rel="help"
+      href="https://w3c.github.io/IndexedDB/#dom-idbdatabase-createobjectstore">
+<link rel="help"
+      href="https://w3c.github.io/IndexedDB/#dom-idbdatabase-deleteobjectstore">
+<link rel="author" href="pwnall@chromium.org" title="Victor Costan">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="resources/support-promises.js"></script>
+<script>
+'use strict';
+
+promise_test(t => {
+  return createDatabase(t, database => {
+    createBooksStore(t, database);
+  }).then(database => {
+    database.close();
+  }).then(() => migrateDatabase(t, 2, (database, transaction, request) => {
+    return new Promise((resolve, reject) => {
+      transaction.addEventListener('complete', () => {
+        resolve(new Promise((resolve, reject) => {
+          assert_equals(
+              request.transaction, transaction,
+              "The open request's transaction should be reset after " +
+              'oncomplete');
+          assert_throws_dom(
+              'InvalidStateError',
+              () => { database.createObjectStore('books2'); },
+              'createObjectStore exception should reflect that the ' +
+              'transaction is no longer running');
+          assert_throws_dom(
+              'InvalidStateError',
+              () => { database.deleteObjectStore('books'); },
+              'deleteObjectStore exception should reflect that the ' +
+              'transaction is no longer running');
+          resolve();
+        }));
+      }, false);
+    });
+  })).then(database => { database.close(); });
+}, 'in the complete event handler for a committed transaction');
+
+promise_test(t => {
+  return createDatabase(t, database => {
+    createBooksStore(t, database);
+  }).then(database => {
+    database.close();
+  }).then(() => migrateDatabase(t, 2, (database, transaction, request) => {
+    return new Promise((resolve, reject) => {
+      transaction.addEventListener('complete', () => {
+        setTimeout(() => {
+          resolve(new Promise((resolve, reject) => {
+            assert_equals(
+                request.transaction, null,
+                "The open request's transaction should be reset after " +
+                'oncomplete microtasks');
+            assert_throws_dom(
+                'InvalidStateError',
+                () => { database.createObjectStore('books2'); },
+                'createObjectStore exception should reflect that the ' +
+                'transaction is no longer running');
+            assert_throws_dom(
+                'InvalidStateError',
+                () => { database.deleteObjectStore('books'); },
+                'deleteObjectStore exception should reflect that the ' +
+                'transaction is no longer running');
+            resolve();
+          }));
+        }, 0);
+      }, false);
+    });
+  })).then(database => { database.close(); });
+}, 'in a setTimeout(0) callback after the complete event is fired for a ' +
+   'committed transaction');
+
+</script>