mozilla-central/dom/cache/test/mochitest/test_cache_updateUsage.html

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Test Info: Warnings

<!-- Any copyright is dedicated to the Public Domain.
<!DOCTYPE HTML>
<html>
<head>
<title>Test Cache update its usage to QuotaManager</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="text/javascript" src="large_url_list.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<script class="testbody" type="text/javascript">
function setupTestIframe() {
return new Promise(function(resolve) {
var iframe = document.createElement("iframe");
iframe.src = "empty.html";
iframe.onload = function() {
window.caches = iframe.contentWindow.caches;
resolve();
};
document.body.appendChild(iframe);
});
}
function clearStorage() {
return new Promise(function(resolve) {
var qms = SpecialPowers.Services.qms;
var principal = SpecialPowers.wrap(document).nodePrincipal;
var request = qms.clearStoragesForPrincipal(principal);
var cb = SpecialPowers.wrapCallback(resolve);
request.callback = cb;
});
}
function resetStorage() {
return new Promise(function(resolve) {
var qms = SpecialPowers.Services.qms;
var principal = SpecialPowers.wrap(document).nodePrincipal;
var request = qms.resetStoragesForPrincipal(principal);
var cb = SpecialPowers.wrapCallback(resolve);
request.callback = cb;
});
}
function getStorageUsage(fromMemory) {
return new Promise(function(resolve) {
var qms = SpecialPowers.Services.qms;
var principal = SpecialPowers.wrap(document).nodePrincipal;
var cb = SpecialPowers.wrapCallback(function(request) {
var result = request.result;
resolve(result.usage);
});
// Actually, the flag is used to distingulish getting group usage and origin
// usage, but we utilize this to get usage from in-memory and the disk.
// Default value for "fromMemory" is false.
qms.getUsageForPrincipal(principal, cb, !!fromMemory);
});
}
async function verifyUsage() {
// Although it returns group usage when passing true, it calculate the usage
// from tracking usage object (in-memory object) in QuotaManager.
let memoryUsage = await getStorageUsage(/* fromMemory */ true);
// This will returns the origin usage by re-calculating usage from directory.
let diskUsage = await getStorageUsage(/* fromMemory */ false);
is(memoryUsage, diskUsage,
"In-memory usage and disk usage should be the same.");
return memoryUsage;
}
async function waitForIOToComplete(cache, request) {
info("Wait for IO complete.");
// The following lines ensure we've deleted orphaned body.
// First, wait for cache operation delete the orphaned body.
await cache.match(request);
// Finally, wait for -wal file finish its job.
return resetStorage();
}
SimpleTest.waitForExplicitFinish();
SpecialPowers.pushPrefEnv({
"set": [["dom.caches.enabled", true],
["dom.caches.testing.enabled", true],
["dom.quotaManager.testing", true]],
}, async function() {
const name = "cacheUpdateUsage";
const url = "test_cache_add.js";
const other_url = "test_cache_put.js";
// This test mainly ensure DOM Cache updates its usage to QuotaManager when
// executing an operation which creates/deletes files. To do this, we verify
// usage by calling getUsageFromPrincipal twice with different flag(aGroup).
// The reason is we get group usage by collecting in-memory data, and getting
// origin usage by collecting storage usage from files.
await setupTestIframe();
info("Stage 1: Clean storage.");
await clearStorage();
await verifyUsage();
info("Stage 2: Verify CacheStorage.");
info("Stage 2.1: Verify caches.open.");
await caches.open(name);
await verifyUsage();
info("Stage 2.2: Verify caches.delete.");
var deleted = await caches.delete(name);
ok(deleted, "Cache storage should be deleted");
// Reference from test_cache_orphanced_body.html. It ensures that all
// the runnables have been flushed through the threads.
await caches.has(name);
await resetStorage();
await verifyUsage();
info("Stage 3: Verify Cache.");
let cache = await caches.open(name);
info("Stage 3.1: Verify cache.addAll.");
await cache.addAll([url, other_url]);
await verifyUsage();
info("Stage 3.1.1: Delete all cached requests.");
await cache.delete(url);
await cache.delete(other_url);
await waitForIOToComplete(cache, other_url);
let emptyUsage1 = await verifyUsage();
info("Stage 3.2: Verify cache.add.");
cache = await caches.open(name);
await cache.add(url);
await verifyUsage();
info("Stage 3.2.1: Delete cache.");
await cache.delete(url);
await waitForIOToComplete(cache, url);
let emptyUsage2 = await verifyUsage();
info("Stage 3.3: Verify cache.put.");
cache = await caches.open(name);
let response = await fetch(other_url);
await cache.put(other_url, response);
await verifyUsage();
info("Stage 3.3.1: Delete cache.");
await cache.delete(other_url);
await waitForIOToComplete(cache, other_url);
let emptyUsage3 = await verifyUsage();
// Adding same requests twice will make Cache create morgue file twice, and
// then delete the previous one.
info("Stage 4: Add same request twice to make removing a morgue file.");
cache = await caches.open(name);
info("Stage 4.1: First cache.add.");
await cache.add(url);
await verifyUsage();
info("Stage 4.2: Second cache.add.");
await cache.add(url);
// Since we trigger the action to delete orphaned body, we need to wait for
// the action is done.
await waitForIOToComplete(cache, url);
await verifyUsage();
cache = await caches.open(name);
info("Stage 4.2.1: cache.delete.");
await cache.delete(url);
await waitForIOToComplete(cache, url);
let emptyUsage4 = await verifyUsage();
info("Stage 5: Clean caches.");
await caches.delete(name);
info("Stage 6: Final Check.");
ok(emptyUsage1 == emptyUsage2 &&
emptyUsage1 == emptyUsage3 &&
emptyUsage1 == emptyUsage4,
"Empty usages should be the same");
await SimpleTest.finish();
});
</script>
</body>
</html>