<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>sessionStorage clone equal origins</title>

<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="text/javascript" src="interOriginTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />

<script type="text/javascript">

var currentTest = 1;
var currentStep = 1;

async function doNextTest()
{
  // Bug 1746646: Make mochitests work with TCP enabled (cookieBehavior = 5)
  // Acquire storage access permission here so that the sessionStorage object is
  // shared between this window and the slave in xorigin tests. Without this,
  // our storage would be isolated as a xorigin iframe.
  if (isXOrigin) {
    SpecialPowers.wrap(document).notifyUserGestureActivation();
    await SpecialPowers.addPermission(
      "storageAccessAPI",
      true,
      window.location.href
     );
    await SpecialPowers.wrap(document).requestStorageAccess();
  }

  await SpecialPowers.pushPrefEnv({
    set: [
      ["privacy.partition.always_partition_third_party_non_cookie_storage", true],
      ["privacy.partition.always_partition_third_party_non_cookie_storage.exempt_sessionstorage", false]
    ],
  });

  // We must perform the first step of the test
  // to prepare the land.
  currentStep = 1;
  doStep();

  let hash = "#aps";
  if (isXOrigin) hash += "xorigin";

  switch (currentTest)
  {
    case 1:
      // Open a window from the same origin and check data
      // are copied but not further modified on our side
      slaveOrigin = "http://mochi.test:8888";
      slave = window.open(slaveOrigin + slavePath + "frameNotEqual.html" + hash);
      break;

    case 2:
      slave.close();
      // Open a window from a different origin and check data
      // are NOT copied and not modified on our side
      slaveOrigin = "https://example.com";
      slave = window.open(slaveOrigin + slavePath + "frameNotEqual.html" + hash);
      break;

    case 3:
      slave.close();
      sessionStorage.clear();
      SimpleTest.finish();
      break;
  }

  ++currentTest;
}

function doStep()
{
  switch (currentStep)
  {
    case 1:
      sessionStorage.setItem("A", "1");
      sessionStorage.setItem("B", "2");
      is(sessionStorage.getItem("A"), "1", "A is 1 in the master");
      is(sessionStorage.getItem("B"), "2", "B is 2 in the master");
      is(sessionStorage.length, 2, "Num of items is 2");
      break;

    case 3:
      is(sessionStorage.getItem("A"), "1", "A is 1 in the master");
      is(sessionStorage.getItem("B"), "2", "B is 2 in the master");
      is(sessionStorage.getItem("C"), null, "C is null in the master");
      is(sessionStorage.length, 2, "Num of items is 2");

      sessionStorage.setItem("C", "4");
      is(sessionStorage.getItem("C"), "4", "C is 4 in the master");
      is(sessionStorage.length, 3, "Num of items is 3");
      break;
  }

  ++currentStep;
  ++currentStep;

  return true;
}

SimpleTest.waitForExplicitFinish();

</script>

</head>

<body onload="doNextTest();">
</body>
</html>
