1 files changed, 71 insertions, 0 deletions
diff --git a/dom/indexedDB/test/unit/test_unique_index_update.js b/dom/indexedDB/test/unit/test_unique_index_update.js
new file mode 100644
index 0000000000..736344ae5e
--- /dev/null
+++ b/dom/indexedDB/test/unit/test_unique_index_update.js
@@ -0,0 +1,71 @@
+/**
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+/* exported testGenerator */
+var testGenerator = testSteps();
+
+function* testSteps() {
+  let request = indexedDB.open(
+    this.window ? window.location.pathname : "Splendid Test",
+    1
+  );
+  request.onerror = errorHandler;
+  request.onupgradeneeded = grabEventAndContinueHandler;
+  request.onsuccess = grabEventAndContinueHandler;
+
+  let event = yield undefined;
+
+  let db = event.target.result;
+
+  for (let autoIncrement of [false, true]) {
+    let objectStore = db.createObjectStore(autoIncrement, {
+      keyPath: "id",
+      autoIncrement,
+    });
+    objectStore.createIndex("", "index", { unique: true });
+
+    for (let i = 0; i < 10; i++) {
+      objectStore.add({ id: i, index: i });
+    }
+  }
+
+  event = yield undefined;
+  is(event.type, "success", "expect a success event");
+
+  for (let autoIncrement of [false, true]) {
+    let objectStore = db
+      .transaction(autoIncrement, "readwrite")
+      .objectStore(autoIncrement);
+
+    request = objectStore.put({ id: 5, index: 6 });
+    request.onsuccess = unexpectedSuccessHandler;
+    request.addEventListener("error", new ExpectError("ConstraintError", true));
+    event = yield undefined;
+
+    event.preventDefault();
+
+    let keyRange = IDBKeyRange.only(5);
+
+    objectStore.index("").openCursor(keyRange).onsuccess = function (event) {
+      let cursor = event.target.result;
+      ok(cursor, "Must have a cursor here");
+
+      is(cursor.value.index, 5, "Still have the right index value");
+
+      cursor.value.index = 6;
+
+      request = cursor.update(cursor.value);
+      request.onsuccess = unexpectedSuccessHandler;
+      request.addEventListener(
+        "error",
+        new ExpectError("ConstraintError", true)
+      );
+    };
+
+    yield undefined;
+  }
+
+  finishTest();
+}