| <!doctype html> |
| <meta charset=utf-8> |
| <title>IndexedDB: Index iteration with cursor updates/deletes</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="support.js"></script> |
| <script> |
| const objStoreValues = [ |
| {name: 'foo', id: 1}, |
| {name: 'bar', id: 2}, |
| {name: 'foo', id: 3}, |
| {name: 'bar', id: 4}, |
| ]; |
| |
| const objStoreValuesByIndex = [ |
| objStoreValues[1], |
| objStoreValues[3], |
| objStoreValues[0], |
| objStoreValues[2], |
| ]; |
| |
| const functionsThatShouldNotAffectIteration = [ |
| cursor => cursor.update({}), |
| cursor => cursor.delete(), |
| ]; |
| |
| functionsThatShouldNotAffectIteration.forEach((func) => indexeddb_test( |
| (t, db) => { |
| const objStore = db.createObjectStore('items', {autoIncrement: true}); |
| objStore.createIndex('name', 'name', {unique: false}); |
| objStoreValues.forEach((value) => objStore.add(value)); |
| }, |
| (t, db) => { |
| const txn = db.transaction('items', 'readwrite'); |
| const objStore = txn.objectStore('items'); |
| const nameIndex = objStore.index('name'); |
| |
| const cursorValues = []; |
| nameIndex.openCursor().onsuccess = (evt) => { |
| const cursor = evt.target.result; |
| if (cursor) { |
| func(cursor); |
| cursorValues.push(cursor.value); |
| cursor.continue(); |
| } else { |
| assert_equals(cursorValues.length, 4, |
| `Cursor should iterate over 4 records`); |
| |
| cursorValues.forEach((value, i) => { |
| assert_object_equals(value, objStoreValuesByIndex[i]); |
| }); |
| t.done(); |
| } |
| } |
| }, |
| `Calling ${func} doesn't affect index iteration` |
| )); |
| </script> |
