browser_687710.js - mozsearch

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/* Any copyright is dedicated to the Public Domain.

   http://creativecommons.org/publicdomain/zero/1.0/ */

// Test that sessionrestore handles cycles in the shentry graph properly.

//

// These cycles shouldn't be there in the first place, but they cause hangs

// when they mysteriously appear (bug 687710).  Docshell code assumes this

// graph is a tree and tires to walk to the root.  But if there's a cycle,

// there is no root, and we loop forever.

var stateBackup = ss.getBrowserState();

var state = {windows:[{tabs:[{entries:[

    docIdentifier: 1,

    url: "http://example.com",

    children: [

        docIdentifier: 2,

        url: "http://example.com"

},

    docIdentifier: 2,

    url: "http://example.com",

    children: [

        docIdentifier: 1,

        url: "http://example.com"

]}]}]}

function test() {

  registerCleanupFunction(function () {

    ss.setBrowserState(stateBackup);

});

  /* This test fails by hanging. */

  ss.setBrowserState(JSON.stringify(state));

  ok(true, "Didn't hang!");