dom/indexedDB/test/unit/test_transaction_abort_hang.js@6474c204b198
dom/indexedDB/test/unit/test_transaction_abort_hang.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
1 /**
2 * Any copyright is dedicated to the Public Domain.
3 * http://creativecommons.org/publicdomain/zero/1.0/
4 */
5 "use strict";
7 var self = this;
9 var testGenerator = testSteps();
11 function testSteps()
12 {
13 const dbName = self.window ?
14 window.location.pathname :
15 "test_transaction_abort_hang";
16 const objStoreName = "foo";
17 const transactionCount = 30;
19 let completedTransactionCount = 0;
20 let caughtError = false;
22 let abortedTransactionIndex = Math.floor(transactionCount / 2);
23 if (abortedTransactionIndex % 2 == 0) {
24 abortedTransactionIndex++;
25 }
27 let request = indexedDB.open(dbName, 1);
28 request.onerror = errorHandler;
29 request.onupgradeneeded = grabEventAndContinueHandler;
30 let event = yield undefined;
32 request.result.createObjectStore(objStoreName, { autoIncrement: true });
34 request.onupgradeneeded = null;
35 request.onsuccess = grabEventAndContinueHandler;
36 event = yield undefined;
38 let db = event.target.result;
40 for (let i = 0; i < transactionCount; i++) {
41 const readonly = i % 2 == 0;
42 const mode = readonly ? "readonly" : "readwrite";
44 let transaction = db.transaction(objStoreName, mode);
46 if (i == transactionCount - 1) {
47 // Last one, finish the test.
48 transaction.oncomplete = grabEventAndContinueHandler;
49 } else if (i == abortedTransactionIndex - 1) {
50 transaction.oncomplete = function(event) {
51 ok(true, "Completed transaction " + ++completedTransactionCount +
52 " (We may hang after this!)");
53 };
54 } else if (i == abortedTransactionIndex) {
55 // Special transaction that we abort outside the normal event flow.
56 transaction.onerror = function(event) {
57 ok(true, "Aborted transaction " + ++completedTransactionCount +
58 " (We didn't hang!)");
59 is(event.target.error.name, "AbortError",
60 "AbortError set as the error on the request");
61 is(event.target.transaction.error, null,
62 "No error set on the transaction");
63 ok(!caughtError, "Haven't seen the error event yet");
64 caughtError = true;
65 event.preventDefault();
66 };
67 // This has to happen after the we return to the event loop but before the
68 // transaction starts running.
69 executeSoon(function() { transaction.abort(); });
70 } else {
71 transaction.oncomplete = function(event) {
72 ok(true, "Completed transaction " + ++completedTransactionCount);
73 };
74 }
76 if (readonly) {
77 transaction.objectStore(objStoreName).get(0);
78 } else {
79 try { transaction.objectStore(objStoreName).add({}); } catch(e) { }
80 }
81 }
82 ok(true, "Created all transactions");
84 event = yield undefined;
86 ok(true, "Completed transaction " + ++completedTransactionCount);
87 ok(caughtError, "Caught the error event when we aborted the transaction");
89 finishTest();
90 yield undefined;
91 }
