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var testGenerator = testSteps();
function* testSteps() {
const name = this.window
? window.location.pathname
: "test_storage_manager_estimate.js";
const objectStoreName = "storagesManager";
const arraySize = 1e6;
ok("estimate" in navigator.storage, "Has estimate function");
is(typeof navigator.storage.estimate, "function", "estimate is function");
ok(
navigator.storage.estimate() instanceof Promise,
"estimate() method exists and returns a Promise"
);
navigator.storage.estimate().then(estimation => {
testGenerator.next(estimation.usage);
});
let before = yield undefined;
let request = indexedDB.open(name, 1);
request.onerror = errorHandler;
request.onupgradeneeded = grabEventAndContinueHandler;
request.onsuccess = continueToNextStep;
let event = yield undefined;
let db = event.target.result;
db.onerror = errorHandler;
let objectStore = db.createObjectStore(objectStoreName, {});
yield undefined;
navigator.storage.estimate().then(estimation => {
testGenerator.next(estimation.usage);
});
let usageAfterCreate = yield undefined;
ok(
usageAfterCreate > before,
"estimated usage must increase after createObjectStore"
);
let txn = db.transaction(objectStoreName, "readwrite");
objectStore = txn.objectStore(objectStoreName);
objectStore.put(new Uint8Array(arraySize), "k");
txn.oncomplete = continueToNextStep;
txn.onabort = errorHandler;
txn.onerror = errorHandler;
event = yield undefined;
navigator.storage.estimate().then(estimation => {
testGenerator.next(estimation.usage);
});
let usageAfterPut = yield undefined;
ok(
usageAfterPut > usageAfterCreate,
"estimated usage must increase after putting large object"
);
db.close();
finishTest();
}
/* exported setup */
async function setup(isXOrigin) {
// Bug 1746646: Make mochitests work with TCP enabled (cookieBehavior = 5)
// Acquire storage access permission here so that the iframe has
// first-party access to the storage estimate. Without this, it is
// isolated and this test will always fail
if (isXOrigin) {
await SpecialPowers.pushPrefEnv({
set: [
[
"privacy.partition.always_partition_third_party_non_cookie_storage",
false,
],
],
});
SpecialPowers.wrap(document).notifyUserGestureActivation();
await SpecialPowers.addPermission(
"storageAccessAPI",
true,
window.location.href
);
await SpecialPowers.wrap(document).requestStorageAccess();
}
runTest();
}
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