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/**
* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/
*/
"use strict";
var self = this;
var testGenerator = testSteps();
function testSteps()
{
const dbName = self.window ?
window.location.pathname :
"test_transaction_abort_hang";
const objStoreName = "foo";
const transactionCount = 30;
let completedTransactionCount = 0;
let caughtError = false;
let abortedTransactionIndex = Math.floor(transactionCount / 2);
if (abortedTransactionIndex % 2 == 0) {
abortedTransactionIndex++;
}
let request = indexedDB.open(dbName, 1);
request.onerror = errorHandler;
request.onupgradeneeded = grabEventAndContinueHandler;
let event = yield undefined;
request.result.createObjectStore(objStoreName, { autoIncrement: true });
request.onupgradeneeded = null;
request.onsuccess = grabEventAndContinueHandler;
event = yield undefined;
let db = event.target.result;
for (let i = 0; i < transactionCount; i++) {
const readonly = i % 2 == 0;
const mode = readonly ? "readonly" : "readwrite";
let transaction = db.transaction(objStoreName, mode);
if (i == transactionCount - 1) {
// Last one, finish the test.
transaction.oncomplete = grabEventAndContinueHandler;
} else if (i == abortedTransactionIndex - 1) {
transaction.oncomplete = function(event) {
ok(true, "Completed transaction " + ++completedTransactionCount +
" (We may hang after this!)");
};
} else if (i == abortedTransactionIndex) {
// Special transaction that we abort outside the normal event flow.
transaction.onerror = function(event) {
ok(true, "Aborted transaction " + ++completedTransactionCount +
" (We didn't hang!)");
is(event.target.error.name, "AbortError",
"AbortError set as the error on the request");
is(event.target.transaction.error, null,
"No error set on the transaction");
ok(!caughtError, "Haven't seen the error event yet");
caughtError = true;
event.preventDefault();
};
// This has to happen after the we return to the event loop but before the
// transaction starts running.
executeSoon(function() { transaction.abort(); });
} else {
transaction.oncomplete = function(event) {
ok(true, "Completed transaction " + ++completedTransactionCount);
};
}
if (readonly) {
transaction.objectStore(objStoreName).get(0);
} else {
try { transaction.objectStore(objStoreName).add({}); } catch(e) { }
}
}
ok(true, "Created all transactions");
event = yield undefined;
ok(true, "Completed transaction " + ++completedTransactionCount);
ok(caughtError, "Caught the error event when we aborted the transaction");
finishTest();
yield undefined;
}
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