forked from mirrors/gecko-dev
		
	
		
			
				
	
	
		
			48 lines
		
	
	
	
		
			1.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			48 lines
		
	
	
	
		
			1.2 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 = {windows: [{tabs: [{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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| 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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|   ss.setBrowserState(JSON.stringify(state));
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|   ok(true, "Didn't hang!");
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| }
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