forked from mirrors/gecko-dev
		
	
		
			
				
	
	
		
			58 lines
		
	
	
	
		
			1.5 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			58 lines
		
	
	
	
		
			1.5 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| /* Any copyright is dedicated to the Public Domain.
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|    http://creativecommons.org/publicdomain/zero/1.0/ */
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| 
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| // Test that sessionrestore handles cycles in the shentry graph properly.
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| //
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| // These cycles shouldn't be there in the first place, but they cause hangs
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| // when they mysteriously appear (bug 687710).  Docshell code assumes this
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| // graph is a tree and tires to walk to the root.  But if there's a cycle,
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| // there is no root, and we loop forever.
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| 
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| var stateBackup = ss.getBrowserState();
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| 
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| var state = {
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|   windows: [
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|     {
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|       tabs: [
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|         {
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|           entries: [
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|             {
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|               docIdentifier: 1,
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|               url: "http://example.com",
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|               triggeringPrincipal_base64,
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|               children: [
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|                 {
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|                   docIdentifier: 2,
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|                   url: "http://example.com",
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|                   triggeringPrincipal_base64,
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|                 },
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|               ],
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|             },
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|             {
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|               docIdentifier: 2,
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|               url: "http://example.com",
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|               triggeringPrincipal_base64,
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|               children: [
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|                 {
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|                   docIdentifier: 1,
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|                   url: "http://example.com",
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|                   triggeringPrincipal_base64,
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|                 },
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|               ],
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|             },
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|           ],
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|         },
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|       ],
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|     },
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|   ],
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| };
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| 
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| add_task(async function test() {
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|   registerCleanupFunction(function () {
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|     ss.setBrowserState(stateBackup);
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|   });
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| 
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|   /* This test fails by hanging. */
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|   await setBrowserState(state);
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|   ok(true, "Didn't hang!");
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| });
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