1 files changed, 63 insertions, 0 deletions
diff --git a/testing/web-platform/tests/IndexedDB/open-request-queue.html b/testing/web-platform/tests/IndexedDB/open-request-queue.html
new file mode 100644
index 0000000000..b4371f2a2e
--- /dev/null
+++ b/testing/web-platform/tests/IndexedDB/open-request-queue.html
@@ -0,0 +1,63 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>IndexedDB: open and delete requests are processed as a FIFO queue</title>
+<link rel="help" href="https://w3c.github.io/IndexedDB/#request-connection-queue">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="resources/support.js"></script>
+<script>
+
+async_test(t => {
+    let db_name = 'db' + self.location.pathname + '-' + t.name;
+    indexedDB.deleteDatabase(db_name);
+
+    // Open and hold connection while other requests are queued up.
+    let r = indexedDB.open(db_name, 1);
+    r.onerror = t.unreached_func('open should succeed');
+    r.onsuccess = t.step_func(e => {
+        let db = r.result;
+
+        let saw = expect(t, [
+            'open1 success',
+            'open1 versionchange',
+            'delete1 blocked',
+            'delete1 success',
+            'open2 success',
+            'open2 versionchange',
+            'delete2 blocked',
+            'delete2 success'
+        ]);
+
+        function open(token, version) {
+            let r = indexedDB.open(db_name, version);
+            r.onsuccess = t.step_func(e => {
+                saw(token + ' success');
+                let db = r.result;
+                db.onversionchange = t.step_func(e => {
+                    saw(token + ' versionchange');
+                    setTimeout(t.step_func(() => db.close()), 0);
+                });
+            });
+            r.onblocked = t.step_func(e => saw(token + ' blocked'));
+            r.onerror = t.unreached_func('open should succeed');
+        }
+
+        function deleteDatabase(token) {
+            let r = indexedDB.deleteDatabase(db_name);
+            r.onsuccess = t.step_func(e => saw(token + ' success'));
+            r.onblocked = t.step_func(e => saw(token + ' blocked'));
+            r.onerror = t.unreached_func('deleteDatabase should succeed');
+        }
+
+        open('open1', 2);
+        deleteDatabase('delete1');
+        open('open2', 3);
+        deleteDatabase('delete2');
+
+        // Now unblock the queue.
+        db.close();
+    });
+
+}, 'Opens and deletes are processed in order');
+
+</script>