test_sandbox.html - mozsearch

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<!doctype html>

<html>

<head>

  <title>indexedDB in JS Sandbox</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"></link>

</head>

<body>

<script type="application/javascript">

SimpleTest.waitForExplicitFinish();

// This runs inside a same-origin sandbox.

// The intent being to show that the data store is the same.

function storeValue() {

  function createDB_inner() {

    var op = indexedDB.open("db");

    op.onupgradeneeded = e => {

      var db = e.target.result;

      db.createObjectStore("store");

};

    return new Promise(resolve => {

      op.onsuccess = e => resolve(e.target.result);

});

  function add(k, v) {

    return createDB_inner().then(db => {

      var tx = db.transaction("store", "readwrite");

      var store = tx.objectStore("store");

      var op = store.add(v, k);

      return new Promise((resolve, reject) => {

        op.onsuccess = e => resolve(e.target.result);

        op.onerror = _ => reject(op.error);

        tx.onabort = _ => reject(tx.error);

});

});

  return add("x", [ 10, {} ])

    .then(_ => step_done(),

          _ => ok(false, "failed to store"));

function createDB_outer() {

  var op = indexedDB.open("db");

  op.onupgradeneeded = e => {

    ok(false, "upgrade should not be needed");

    var db = e.target.result;

    db.createObjectStore("store");

};

  return new Promise(resolve => {

    op.onsuccess = e => resolve(e.target.result);

});

function get(k) {

  return createDB_outer().then(db => {

      var tx = db.transaction("store", "readonly");

      var store = tx.objectStore("store");

      var op = store.get(k);

      return new Promise((resolve, reject) => {

        op.onsuccess = e => resolve(e.target.result);

        op.onerror = _ => reject(op.error);

        tx.onabort = _ => reject(tx.error);

});

});

function runInSandbox(sandbox, testFunc) {

  is(typeof testFunc, "function");

  var resolvePromise;

  // Step-done is defined in the sandbox and used in the add() function above.

  /* global step_done */

  var testPromise = new Promise(r => resolvePromise = r);

  SpecialPowers.Cu.exportFunction(_ => resolvePromise(), sandbox,

                                  { defineAs: "step_done" });

  SpecialPowers.Cu.evalInSandbox("(" + testFunc.toString() + ")()" +

                                 ".then(step_done);", sandbox);

  return testPromise;

// Use the window principal for the sandbox; location.origin is not sufficient.

var sb = new SpecialPowers.Cu.Sandbox(window,

                                      { wantGlobalProperties: ["indexedDB"] });

sb.ok = SpecialPowers.Cu.exportFunction(ok, sb);

Promise.resolve()

  .then(_ => runInSandbox(sb, storeValue))

  .then(_ => get("x"))

  .then(x => {

    ok(x, "a value should be present");

    is(x.length, 2);

    is(x[0], 10);

    is(typeof x[1], "object");

    is(Object.keys(x[1]).length, 0);

})

  .then(_ => SimpleTest.finish());

</script>

</body>

</html>