browser/components/sessionstore/test/browser_687710.js@6474c204b198
browser/components/sessionstore/test/browser_687710.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 /* Any copyright is dedicated to the Public Domain.
2 http://creativecommons.org/publicdomain/zero/1.0/ */
4 // Test that sessionrestore handles cycles in the shentry graph properly.
5 //
6 // These cycles shouldn't be there in the first place, but they cause hangs
7 // when they mysteriously appear (bug 687710). Docshell code assumes this
8 // graph is a tree and tires to walk to the root. But if there's a cycle,
9 // there is no root, and we loop forever.
11 let stateBackup = ss.getBrowserState();
13 let state = {windows:[{tabs:[{entries:[
14 {
15 docIdentifier: 1,
16 url: "http://example.com",
17 children: [
18 {
19 docIdentifier: 2,
20 url: "http://example.com"
21 }
22 ]
23 },
24 {
25 docIdentifier: 2,
26 url: "http://example.com",
27 children: [
28 {
29 docIdentifier: 1,
30 url: "http://example.com"
31 }
32 ]
33 }
34 ]}]}]}
36 function test() {
37 registerCleanupFunction(function () {
38 ss.setBrowserState(stateBackup);
39 });
41 /* This test fails by hanging. */
42 ss.setBrowserState(JSON.stringify(state));
43 ok(true, "Didn't hang!");
44 }
