1 files changed, 48 insertions, 0 deletions
diff --git a/dom/indexedDB/test/unit/test_cursor_cycle.js b/dom/indexedDB/test/unit/test_cursor_cycle.js
new file mode 100644
index 0000000000..09099387f3
--- /dev/null
+++ b/dom/indexedDB/test/unit/test_cursor_cycle.js
@@ -0,0 +1,48 @@
+/**
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+/* exported testGenerator */
+var testGenerator = testSteps();
+
+function* testSteps() {
+  const Bob = { ss: "237-23-7732", name: "Bob" };
+
+  let request = indexedDB.open(
+    this.window ? window.location.pathname : "Splendid Test",
+    1
+  );
+  request.onerror = errorHandler;
+  request.onupgradeneeded = grabEventAndContinueHandler;
+  let event = yield undefined;
+
+  let db = event.target.result;
+  event.target.onsuccess = continueToNextStep;
+
+  let objectStore = db.createObjectStore("foo", { keyPath: "ss" });
+  objectStore.createIndex("name", "name", { unique: true });
+  objectStore.add(Bob);
+  yield undefined;
+
+  db
+    .transaction("foo", "readwrite")
+    .objectStore("foo")
+    .index("name")
+    .openCursor().onsuccess = function (event) {
+    event.target.transaction.oncomplete = continueToNextStep;
+    let cursor = event.target.result;
+    if (cursor) {
+      let objectStore = event.target.transaction.objectStore("foo");
+      objectStore.delete(Bob.ss).onsuccess = function (event) {
+        cursor.continue();
+      };
+    }
+  };
+  yield undefined;
+  finishTest();
+
+  objectStore = null; // Bug 943409 workaround.
+
+  yield undefined;
+}