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Test Info:
/**
* Any copyright is dedicated to the Public Domain.
*/
/* exported testGenerator, disableWorkerTest */
var disableWorkerTest = "Need a way to set temporary prefs from a worker";
var testGenerator = testSteps();
function* testSteps() {
const name = this.window
? window.location.pathname
: "test_maximal_serialized_object_size.js";
const megaBytes = 1024 * 1024;
const kMessageOverhead = 1; // in MB
const kMaxIpcMessageSize = 20; // in MB
const kMaxIdbMessageSize = kMaxIpcMessageSize - kMessageOverhead;
let chunks = new Array(kMaxIdbMessageSize);
for (let i = 0; i < kMaxIdbMessageSize; i++) {
chunks[i] = new ArrayBuffer(1 * megaBytes);
}
if (this.window) {
SpecialPowers.pushPrefEnv(
{
set: [
[
"dom.indexedDB.maxSerializedMsgSize",
kMaxIpcMessageSize * megaBytes,
],
],
},
continueToNextStep
);
yield undefined;
} else {
setMaxSerializedMsgSize(kMaxIpcMessageSize * megaBytes);
}
let openRequest = indexedDB.open(name, 1);
openRequest.onerror = errorHandler;
openRequest.onupgradeneeded = grabEventAndContinueHandler;
openRequest.onsuccess = unexpectedSuccessHandler;
let event = yield undefined;
let db = event.target.result;
is(db.objectStoreNames.length, 0, "Correct objectStoreNames list");
let objectStore = db.createObjectStore("test store", { keyPath: "id" });
is(db.objectStoreNames.length, 1, "Correct objectStoreNames list");
is(
db.objectStoreNames.item(0),
objectStore.name,
"Correct object store name"
);
function testTooLargeError(aOperation, aObject) {
try {
objectStore[aOperation](aObject).onerror = errorHandler;
ok(false, "UnknownError is expected to be thrown!");
} catch (e) {
ok(e instanceof DOMException, "got a DOM exception");
is(e.name, "UnknownError", "correct error");
ok(!!e.message, "Error message: " + e.message);
ok(
e.message.startsWith(
`IDBObjectStore.${aOperation}: The serialized value is too large`
),
"Correct error message prefix."
);
}
}
info("Verify IDBObjectStore.add() - object is too large");
testTooLargeError("add", { id: 1, data: chunks });
info(
"Verify IDBObjectStore.add() - object size is closed to the maximal size."
);
chunks.length = chunks.length - 1;
let request = objectStore.add({ id: 1, data: chunks });
request.onerror = errorHandler;
request.onsuccess = grabEventAndContinueHandler;
yield undefined;
info("Verify IDBObjectStore.add() - object key is too large");
chunks.length = 10;
testTooLargeError("add", { id: chunks });
objectStore.createIndex("index name", "index");
ok(objectStore.index("index name"), "Index created.");
info("Verify IDBObjectStore.add() - index key is too large");
testTooLargeError("add", { id: 2, index: chunks });
info("Verify IDBObjectStore.add() - object key and index key are too large");
let indexChunks = chunks.splice(0, 5);
testTooLargeError("add", { id: chunks, index: indexChunks });
openRequest.onsuccess = continueToNextStep;
yield undefined;
db.close();
finishTest();
}