LayoutTests/storage/indexeddb/key-cursor-request-cycle.html - Issue 924863003: IndexedDB: Replace custom binding logic with [SetWrapperReferenceTo]

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Issue 924863003: IndexedDB: Replace custom binding logic with [SetWrapperReferenceTo] (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: Created 5 years, 10 months ago

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1 <!DOCTYPE html>	1 <!DOCTYPE html>

2 <script src="../../resources/js-test.js"></script>	2 <script src="../../resources/js-test.js"></script>

3 <script src="resources/shared.js"></script>	3 <script src="resources/shared.js"></script>

4 <script>	4 <script>

5	5

6 description("Verify that that cursors weakly hold request, and work if request i s GC'd");	6 description("Verify that that key cursors weakly hold request, and work if reque st is GC'd");
	jsbell 2015/02/13 19:28:00 Added to ensure we're exercising both IDBCursor an Added to ensure we're exercising both IDBCursor and IDBCursorWithValue interfaces.
7	7

8 indexedDBTest(prepareDatabase, onOpen);	8 indexedDBTest(prepareDatabase, onOpen);

9	9

10 function prepareDatabase(evt)	10 function prepareDatabase(evt)

11 {	11 {

12 preamble(evt);	12 preamble(evt);

13 evalAndLog("db = event.target.result");	13 evalAndLog("db = event.target.result");

14 evalAndLog("store = db.createObjectStore('store')");	14 evalAndLog("store = db.createObjectStore('store')");

15 store.put("value1", "key1");	15 store.put("value1", "key1");

16 store.put("value2", "key2");	16 store.put("value2", "key2");

17 }	17 }

18	18

19 function onOpen(evt)	19 function onOpen(evt)

20 {	20 {

21 preamble(evt);	21 preamble(evt);

22 evalAndLog("db = event.target.result");	22 evalAndLog("db = event.target.result");

23 evalAndLog("tx = db.transaction('store')");	23 evalAndLog("tx = db.transaction('store')");

24 evalAndLog("store = tx.objectStore('store')");	24 evalAndLog("store = tx.objectStore('store')");

25	25

26 evalAndLog("cursorRequest = store.openCursor()");	26 evalAndLog("cursorRequest = store.openKeyCursor()");

27 cursorRequest.onsuccess = function openCursorRequestSuccess(evt) {	27 cursorRequest.onsuccess = function openCursorRequestSuccess(evt) {

28 preamble(evt);	28 preamble(evt);

29 debug("Result will be checked later, to ensure that lazy access is safe" );	29 debug("Result will be checked later, to ensure that lazy access is safe" );

30 };	30 };

31	31

32 evalAndLog("otherRequest = store.get(0)");	32 evalAndLog("otherRequest = store.get(0)");

33 otherRequest.onsuccess = function otherRequestSuccess(evt) {	33 otherRequest.onsuccess = function otherRequestSuccess(evt) {

34 preamble(evt);	34 preamble(evt);

35	35

36 debug("Verify that the request's result can be accessed lazily:");	36 debug("Verify that the request's result can be accessed lazily:");

37 evalAndLog("gc()");	37 evalAndLog("gc()");

38	38

39 evalAndLog("cursor = cursorRequest.result");	39 evalAndLog("cursor = cursorRequest.result");

40 shouldBeNonNull("cursor");	40 shouldBeNonNull("cursor");

41 shouldBeEqualToString("cursor.key", "key1");	41 shouldBeEqualToString("cursor.key", "key1");

42 shouldBeEqualToString("cursor.value", "value1");

43 evalAndLog("cursorRequest.extra = 123");	42 evalAndLog("cursorRequest.extra = 123");

44 evalAndLog("cursor.extra = 456");	43 evalAndLog("cursor.extra = 456");

45	44

46 // Assign a new handler to inspect the request and cursor indirectly.	45 // Assign a new handler to inspect the request and cursor indirectly.

47 cursorRequest.onsuccess = function cursorContinueSuccess(evt) {	46 cursorRequest.onsuccess = function cursorContinueSuccess(evt) {

48 preamble(evt);	47 preamble(evt);

49 evalAndLog("cursor = event.target.result");	48 evalAndLog("cursor = event.target.result");

50 shouldBeNonNull("cursor");	49 shouldBeNonNull("cursor");

51 shouldBeEqualToString("cursor.key", "key2");	50 shouldBeEqualToString("cursor.key", "key2");

52 shouldBeEqualToString("cursor.value", "value2");

53 shouldBe("event.target.extra", "123");	51 shouldBe("event.target.extra", "123");

54 shouldBe("cursor.extra", "456");	52 shouldBe("cursor.extra", "456");

55 };	53 };

56	54

57 debug("Ensure request is not released if cursor is still around.");	55 debug("Ensure request is not released if cursor is still around.");

58 cursorRequestObservation = internals.observeGC(cursorRequest);	56 cursorRequestObservation = internals.observeGC(cursorRequest);

59 evalAndLog("cursorRequest = null");	57 evalAndLog("cursorRequest = null");

60 evalAndLog("gc()");	58 evalAndLog("gc()");

61 shouldBeFalse("cursorRequestObservation.wasCollected");	59 shouldBeFalse("cursorRequestObservation.wasCollected");

62	60

63 evalAndLog("cursor.continue()");	61 evalAndLog("cursor.continue()");

64	62

65 cursorObservation = internals.observeGC(cursor);	63 cursorObservation = internals.observeGC(cursor);

66 evalAndLog("cursor = null");	64 evalAndLog("cursor = null");

67 evalAndLog("gc()");	65 evalAndLog("gc()");

68 shouldBeFalse("cursorObservation.wasCollected");	66 shouldBeFalse("cursorObservation.wasCollected");

69	67

70 evalAndLog("finalRequest = store.get(0)");	68 evalAndLog("finalRequest = store.get(0)");

71 finalRequest.onsuccess = function finalRequestSuccess(evt) {	69 finalRequest.onsuccess = function finalRequestSuccess(evt) {

72 preamble(evt);	70 preamble(evt);

73 shouldBeEqualToString("cursor.key", "key2");	71 shouldBeEqualToString("cursor.key", "key2");

74 shouldBeEqualToString("cursor.value", "value2");

75	72

76 cursorObservation = internals.observeGC(cursor);	73 cursorObservation = internals.observeGC(cursor);

77 evalAndLog("cursor = null");	74 evalAndLog("cursor = null");

78 evalAndLog("gc()");	75 evalAndLog("gc()");

79 shouldBeTrue("cursorRequestObservation.wasCollected");	76 shouldBeTrue("cursorRequestObservation.wasCollected");

80 shouldBeTrue("cursorObservation.wasCollected");	77 shouldBeTrue("cursorObservation.wasCollected");

81 };	78 };

82 };	79 };

83	80

84 tx.oncomplete = finishJSTest;	81 tx.oncomplete = finishJSTest;

85 }	82 }

86	83

87	84

88 </script>	85 </script>

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