The Tor Browser / file comparison
comparison: dom/indexedDB/test/unit/test_transaction_abort_hang.js
dom/indexedDB/test/unit/test_transaction_abort_hang.js
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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deleted
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replaced
| -1:000000000000 | 0:2f7099a56064 |
|---|---|
| 1 /** | |
| 2 * Any copyright is dedicated to the Public Domain. | |
| 3 * http://creativecommons.org/publicdomain/zero/1.0/ | |
| 4 */ | |
| 5 "use strict"; | |
| 6 | |
| 7 var self = this; | |
| 8 | |
| 9 var testGenerator = testSteps(); | |
| 10 | |
| 11 function testSteps() | |
| 12 { | |
| 13 const dbName = self.window ? | |
| 14 window.location.pathname : | |
| 15 "test_transaction_abort_hang"; | |
| 16 const objStoreName = "foo"; | |
| 17 const transactionCount = 30; | |
| 18 | |
| 19 let completedTransactionCount = 0; | |
| 20 let caughtError = false; | |
| 21 | |
| 22 let abortedTransactionIndex = Math.floor(transactionCount / 2); | |
| 23 if (abortedTransactionIndex % 2 == 0) { | |
| 24 abortedTransactionIndex++; | |
| 25 } | |
| 26 | |
| 27 let request = indexedDB.open(dbName, 1); | |
| 28 request.onerror = errorHandler; | |
| 29 request.onupgradeneeded = grabEventAndContinueHandler; | |
| 30 let event = yield undefined; | |
| 31 | |
| 32 request.result.createObjectStore(objStoreName, { autoIncrement: true }); | |
| 33 | |
| 34 request.onupgradeneeded = null; | |
| 35 request.onsuccess = grabEventAndContinueHandler; | |
| 36 event = yield undefined; | |
| 37 | |
| 38 let db = event.target.result; | |
| 39 | |
| 40 for (let i = 0; i < transactionCount; i++) { | |
| 41 const readonly = i % 2 == 0; | |
| 42 const mode = readonly ? "readonly" : "readwrite"; | |
| 43 | |
| 44 let transaction = db.transaction(objStoreName, mode); | |
| 45 | |
| 46 if (i == transactionCount - 1) { | |
| 47 // Last one, finish the test. | |
| 48 transaction.oncomplete = grabEventAndContinueHandler; | |
| 49 } else if (i == abortedTransactionIndex - 1) { | |
| 50 transaction.oncomplete = function(event) { | |
| 51 ok(true, "Completed transaction " + ++completedTransactionCount + | |
| 52 " (We may hang after this!)"); | |
| 53 }; | |
| 54 } else if (i == abortedTransactionIndex) { | |
| 55 // Special transaction that we abort outside the normal event flow. | |
| 56 transaction.onerror = function(event) { | |
| 57 ok(true, "Aborted transaction " + ++completedTransactionCount + | |
| 58 " (We didn't hang!)"); | |
| 59 is(event.target.error.name, "AbortError", | |
| 60 "AbortError set as the error on the request"); | |
| 61 is(event.target.transaction.error, null, | |
| 62 "No error set on the transaction"); | |
| 63 ok(!caughtError, "Haven't seen the error event yet"); | |
| 64 caughtError = true; | |
| 65 event.preventDefault(); | |
| 66 }; | |
| 67 // This has to happen after the we return to the event loop but before the | |
| 68 // transaction starts running. | |
| 69 executeSoon(function() { transaction.abort(); }); | |
| 70 } else { | |
| 71 transaction.oncomplete = function(event) { | |
| 72 ok(true, "Completed transaction " + ++completedTransactionCount); | |
| 73 }; | |
| 74 } | |
| 75 | |
| 76 if (readonly) { | |
| 77 transaction.objectStore(objStoreName).get(0); | |
| 78 } else { | |
| 79 try { transaction.objectStore(objStoreName).add({}); } catch(e) { } | |
| 80 } | |
| 81 } | |
| 82 ok(true, "Created all transactions"); | |
| 83 | |
| 84 event = yield undefined; | |
| 85 | |
| 86 ok(true, "Completed transaction " + ++completedTransactionCount); | |
| 87 ok(caughtError, "Caught the error event when we aborted the transaction"); | |
| 88 | |
| 89 finishTest(); | |
| 90 yield undefined; | |
| 91 } |
