gecko-dev/dom/indexedDB/test/test_filehandle_overlapping...

<!--
  Any copyright is dedicated to the Public Domain.
  http://creativecommons.org/publicdomain/zero/1.0/
-->
<html>
<head>
  <title>File Handle Test</title>

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

  <script type="text/javascript">
  function* testSteps()
  {
    const name = window.location.pathname;

    let request = indexedDB.open(name, 1);
    request.onerror = errorHandler;
    request.onsuccess = grabEventAndContinueHandler;
    let event = yield undefined;

    let db = event.target.result;
    db.onerror = errorHandler;

    request = db.createMutableFile("test.txt");
    request.onerror = errorHandler;
    request.onsuccess = grabEventAndContinueHandler;
    event = yield undefined;

    let mutableFile = event.target.result;
    mutableFile.onerror = errorHandler;

    for (let i = 0; i < 50; i++) {
      let stepNumber = 0;

      request = mutableFile.open("readwrite").append("string1");
      request.onsuccess = function(event) {
        is(stepNumber, 1, "This callback came first");
        stepNumber++;
        event.target.fileHandle.oncomplete = grabEventAndContinueHandler;
      };

      request = mutableFile.open("readwrite").append("string2");
      request.onsuccess = function(event) {
        is(stepNumber, 2, "This callback came second");
        stepNumber++;
        event.target.fileHandle.oncomplete = grabEventAndContinueHandler;
      };

      request = mutableFile.open("readwrite").append("string3");
      request.onsuccess = function(event) {
        is(stepNumber, 3, "This callback came third");
        stepNumber++;
        event.target.fileHandle.oncomplete = grabEventAndContinueHandler;
      };

      stepNumber++;
      yield undefined; yield undefined; yield undefined;

      is(stepNumber, 4, "All callbacks received");
    }

    finishTest();
  }
  </script>
  <script type="text/javascript" src="helpers.js"></script>

</head>

<body onload="runTest();"></body>

</html>