| <!DOCTYPE html> |
| <script src="../../resources/js-test.js"></script> |
| <script src="resources/shared.js"></script> |
| <script> |
| |
| description("Ensure IndexedDB's write operations invalidate cursor prefetch caches"); |
| |
| indexedDBTest(prepareDatabase, onOpenSuccess); |
| function prepareDatabase(evt) |
| { |
| preamble(evt); |
| evalAndLog("db = event.target.result"); |
| evalAndLog("store = db.createObjectStore('store')"); |
| } |
| |
| function onOpenSuccess(evt) |
| { |
| preamble(evt); |
| evalAndLog("db = event.target.result"); |
| |
| var steps = [ |
| deleteRange, |
| clearStore |
| ]; |
| |
| (function nextStep() { |
| var step = steps.shift(); |
| if (step) { |
| doPrefetchInvalidationTest(step, nextStep); |
| } else { |
| finishJSTest(); |
| return; |
| } |
| }()); |
| } |
| |
| function doPrefetchInvalidationTest(operation, callback) |
| { |
| debug(""); |
| debug("-------------------------------------------"); |
| preamble(); |
| evalAndLog("store = db.transaction('store', 'readwrite').objectStore('store')"); |
| debug("Populate the store with 200 records."); |
| for (var i = 0; i < 200; ++i) |
| store.put(i, i); |
| evalAndLog("cursorRequest = store.openCursor()"); |
| continue100Times(operation, callback); |
| } |
| |
| function continue100Times(operation, callback) |
| { |
| preamble(); |
| var count = 0; |
| |
| cursorRequest.onsuccess = function() { |
| var cursor = cursorRequest.result; |
| ++count; |
| if (count < 100) { |
| cursor.continue(); |
| return; |
| } |
| shouldBeNonNull("cursorRequest.result"); |
| doOperationAndContinue(operation, callback); |
| } |
| } |
| |
| function doOperationAndContinue(operation, callback) |
| { |
| preamble(); |
| operation(); |
| evalAndLog("cursor = cursorRequest.result"); |
| evalAndLog("cursor.continue()") |
| cursorRequest.onsuccess = function onContinueSuccess() { |
| preamble(); |
| shouldBeNull("cursorRequest.result"); |
| callback(); |
| }; |
| } |
| |
| function deleteRange() |
| { |
| return evalAndLog("store.delete(IDBKeyRange.bound(-Infinity, +Infinity))"); |
| } |
| |
| function clearStore() |
| { |
| return evalAndLog("store.clear()"); |
| } |
| |
| </script> |
