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| (Empty) | |
| 1 <html> |
| 2 <head> |
| 3 <script src="../../http/tests/inspector/inspector-test.js"></script> |
| 4 <script src="heap-snapshot-test.js"></script> |
| 5 <script> |
| 6 |
| 7 function test() |
| 8 { |
| 9 InspectorTest.runHeapSnapshotTestSuite([ |
| 10 function testWeakReferencesDoNotAffectRetainedSize(next) |
| 11 { |
| 12 function createHeapSnapshot() |
| 13 { |
| 14 // Mocking results of running the following code: |
| 15 // root = [new Uint8Array(1000), new Uint8Array(1000), new Uint8
Array(1000)] |
| 16 var builder = new InspectorTest.HeapSnapshotBuilder(); |
| 17 var rootNode = builder.rootNode; |
| 18 |
| 19 var gcRootsNode = new InspectorTest.HeapNode("(GC roots)"); |
| 20 rootNode.linkNode(gcRootsNode, InspectorTest.HeapEdge.Type.eleme
nt); |
| 21 |
| 22 var windowNode = new InspectorTest.HeapNode("Window", 20); |
| 23 rootNode.linkNode(windowNode, InspectorTest.HeapEdge.Type.shortc
ut); |
| 24 gcRootsNode.linkNode(windowNode, InspectorTest.HeapEdge.Type.ele
ment); |
| 25 |
| 26 var arrayNode = new InspectorTest.HeapNode("Array", 10); |
| 27 windowNode.linkNode(arrayNode, InspectorTest.HeapEdge.Type.prope
rty, "root"); |
| 28 var prevBufferNode = null; |
| 29 for (var i = 0; i < 3; i++) { |
| 30 var typedArrayNode = new InspectorTest.HeapNode("Uint8Array"
, 100); |
| 31 arrayNode.linkNode(typedArrayNode, InspectorTest.HeapEdge.Ty
pe.element); |
| 32 |
| 33 var bufferNode = new InspectorTest.HeapNode("ArrayBuffer", 1
000); |
| 34 typedArrayNode.linkNode(bufferNode, InspectorTest.HeapEdge.T
ype.internal); |
| 35 if (prevBufferNode) |
| 36 prevBufferNode.linkNode(bufferNode, InspectorTest.HeapEd
ge.Type.weak, "weak_next"); |
| 37 prevBufferNode = bufferNode; |
| 38 } |
| 39 |
| 40 return builder.generateSnapshot(); |
| 41 } |
| 42 |
| 43 InspectorTest.takeAndOpenSnapshot(createHeapSnapshot, step1); |
| 44 |
| 45 function step1() |
| 46 { |
| 47 InspectorTest.switchToView("Summary", step2); |
| 48 } |
| 49 |
| 50 function step2() |
| 51 { |
| 52 var row = InspectorTest.findRow("Array"); |
| 53 InspectorTest.assertEquals(true, !!row, "\"Array\" row"); |
| 54 InspectorTest.expandRow(row, step3); |
| 55 } |
| 56 |
| 57 function step3(row) |
| 58 { |
| 59 InspectorTest.assertEquals(1, row._count); |
| 60 InspectorTest.assertEquals(3310, row._retainedSize); |
| 61 InspectorTest.assertEquals(10, row._shallowSize); |
| 62 InspectorTest.expandRow(row.children[0], step4); |
| 63 } |
| 64 |
| 65 function step4(arrayInstanceRow) |
| 66 { |
| 67 InspectorTest.assertEquals(2, arrayInstanceRow._distance); |
| 68 InspectorTest.assertEquals(3310, arrayInstanceRow._retainedSize)
; |
| 69 InspectorTest.assertEquals(10, arrayInstanceRow._shallowSize); |
| 70 |
| 71 var children = arrayInstanceRow.children; |
| 72 InspectorTest.assertEquals(3, children.length); |
| 73 |
| 74 for (var i = 0; i < children.length; i++) { |
| 75 InspectorTest.assertEquals("Uint8Array", children[i]._name); |
| 76 InspectorTest.assertEquals(100, children[i]._shallowSize); |
| 77 InspectorTest.assertEquals(1100, children[i]._retainedSize); |
| 78 } |
| 79 setTimeout(next, 0); |
| 80 } |
| 81 } |
| 82 ]); |
| 83 } |
| 84 |
| 85 </script> |
| 86 </head> |
| 87 <body onload="runTest()"> |
| 88 <pre> |
| 89 Tests that weak references are ignored when dominators are calculated and that w
eak references won't affect object's retained size. |
| 90 </pre> |
| 91 </body> |
| 92 </html> |
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Chromium Code Reviews
Issue 674443003:
DevTools: ignore weak referenced when calculating dominators for heap snapshot (Closed)
Base URL: svn://svn.chromium.org/blink/trunk