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products/Sources/formale Sprachen/C/Firefox/dom/indexedDB/test/ (Firefox Browser Version 153.0.1^©) Datei vom 27.6.2026 mit Größe 5 kB

Quelle exceptions_in_events_iframe.html

Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/dom/indexedDB/test/exceptions_in_events_iframe.html

<html>
<head>
  <title>Indexed Database Property Test</title>

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

  <script type="text/javascript">
    let testGenerator = testSteps();

    function ok(val, message) {
      val = val ? "true" : "false";
      window.parent.postMessage("SimpleTest.ok(" + val + ", '" + message +
                                "');", "*");
    }

    function is(a, b, message) {
      ok(a == b, message);
    }

    function grabEventAndContinueHandler(event) {
      testGenerator.next(event);
    }

    function errorHandler(event) {
      ok(false, "indexedDB error, code " + event.target.error.name);
      finishTest();
    }

    function unexpectedSuccessHandler() {
      ok(false, "got success when it was not expected!");
      finishTest();
    }

    function finishTest() {
      // Let window.onerror have a chance to fire
      setTimeout(function() {
        setTimeout(function() {
          testGenerator.return();
          window.parent.postMessage("SimpleTest.finish();", "*");
        }, 0);
      }, 0);
    }

    window.onerror = function() {
      return false;
    };

    function* testSteps() {
      window.parent.SpecialPowers.addPermission("indexedDB", true, document);

      // Test 1: Throwing an exception in an upgradeneeded handler should
      // abort the versionchange transaction and fire an error at the request.
      let request = indexedDB.open(window.location.pathname, 1);
      request.onerror = errorHandler;
      request.onsuccess = unexpectedSuccessHandler;
      request.onupgradeneeded = function() {
        let transaction = request.transaction;
        transaction.oncomplete = unexpectedSuccessHandler;
        transaction.onabort = grabEventAndContinueHandler;
        throw new Error("STOP");
      };

      let event = yield undefined;
      is(event.type, "abort",
         "Throwing during an upgradeneeded event should abort the transaction.");
      is(event.target.error.name, "AbortError", "Got AbortError object");

      request.onerror = grabEventAndContinueHandler;
      event = yield undefined;

      is(event.type, "error",
         "Throwing during an upgradeneeded event should fire an error.");

      // Test 2: Throwing during a request's success handler should abort the
      // transaction.
      request = indexedDB.open(window.location.pathname, 1);
      request.onerror = errorHandler;
      request.onblocked = errorHandler;
      request.onupgradeneeded = grabEventAndContinueHandler;
      request.onsuccess = unexpectedSuccessHandler;
      let openrequest = request;
      event = yield undefined;

      request.onupgradeneeded = unexpectedSuccessHandler;

      let db = event.target.result;
      db.onerror = function(event) {
        event.preventDefault();
      };

      event.target.transaction.oncomplete = unexpectedSuccessHandler;
      event.target.transaction.onabort = grabEventAndContinueHandler;

      is(db.version, 1, "Correct version");
      is(db.objectStoreNames.length, 0, "Correct objectStoreNames length");

      let objectStore = db.createObjectStore("foo");

      is(db.objectStoreNames.length, 1, "Correct objectStoreNames length");
      ok(db.objectStoreNames.contains("foo"), "Has correct objectStore");

      request = objectStore.add({}, 1);
      request.onsuccess = function() {
        throw new Error("foo");
      };

      event = yield undefined;

      is(event.type, "abort", "Got transaction abort event");
      is(event.target.error.name, "AbortError", "Got AbortError object");
      openrequest.onerror = grabEventAndContinueHandler;

      event = yield undefined;

      is(event.type, "error", "Got IDBOpenDBRequest error event");
      is(event.target, openrequest, "Right event target");
      is(event.target.error.name, "AbortError", "Right error name");

      // Test 3: Throwing during a request's error handler should abort the
      // transaction, even if preventDefault is called on the error event.
      request = indexedDB.open(window.location.pathname, 1);
      request.onerror = errorHandler;
      request.onblocked = errorHandler;
      request.onupgradeneeded = grabEventAndContinueHandler;
      request.onsuccess = unexpectedSuccessHandler;
      openrequest = request;
      event = yield undefined;

      request.onupgradeneeded = unexpectedSuccessHandler;

      db = event.target.result;
      db.onerror = function(event) {
        event.preventDefault();
      };

      event.target.transaction.oncomplete = unexpectedSuccessHandler;
      event.target.transaction.onabort = grabEventAndContinueHandler;

      is(db.version, 1, "Correct version");
      is(db.objectStoreNames.length, 0, "Correct objectStoreNames length");

      objectStore = db.createObjectStore("foo");

      is(db.objectStoreNames.length, 1, "Correct objectStoreNames length");
      ok(db.objectStoreNames.contains("foo"), "Has correct objectStore");

      request = objectStore.add({}, 1);
      request.onerror = errorHandler;
      request = objectStore.add({}, 1);
      request.onsuccess = unexpectedSuccessHandler;
      request.onerror = function(event) {
        event.preventDefault();
        throw new Error("STOP");
      };

      event = yield undefined;

      is(event.type, "abort", "Got transaction abort event");
      is(event.target.error.name, "AbortError", "Got AbortError object");
      openrequest.onerror = grabEventAndContinueHandler;

      event = yield undefined;

      is(event.type, "error", "Got IDBOpenDBRequest error event");
      is(event.target, openrequest, "Right event target");
      is(event.target.error.name, "AbortError", "Right error name");

      finishTest();
      yield undefined;
    }
  </script>

</head>

<body onload="testGenerator.next();"></body>

</html>

Messung V0.5 in Prozent

¤ Dauer der Verarbeitung: 0.4 Sekunden ¤

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