gecko-dev/dom/quota/test/unit/test_persist_eviction.js

80 строки
2.2 KiB
JavaScript

/**
* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/
*/
async function fillOrigin(principal, size) {
let database = getSimpleDatabase(principal);
let request = database.open("data");
await requestFinished(request);
try {
request = database.write(getBuffer(size));
await requestFinished(request);
ok(true, "Should not have thrown");
} catch (ex) {
ok(false, "Should not have thrown");
}
request = database.close();
await requestFinished(request);
}
/**
* This test is mainly to verify that normally the oldest origin will be
* evicted if the global limit is reached, but if the oldest origin is
* persisted, then it won't be evicted.
*/
async function testSteps()
{
// The group limit is calculated as 20% of the global limit and the minimum
// value of the group limit is 10 MB.
const groupLimitKB = 10 * 1024;
const globalLimitKB = groupLimitKB * 5;
setGlobalLimit(globalLimitKB);
let request = clear();
await requestFinished(request);
for (let persistOldestOrigin of [false, true]) {
info("Testing " + (persistOldestOrigin ? "with" : "without") +
" persisting the oldest origin");
info("Step 1: Filling six separate origins to reach the global limit " +
"and trigger eviction");
for (let index = 1; index <= 6; index++) {
let spec = "http://example" + index + ".com";
if (index == 1 && persistOldestOrigin) {
request = persist(getPrincipal(spec));
await requestFinished(request);
}
await fillOrigin(getPrincipal(spec), groupLimitKB * 1024);
}
info("Step 2: Verifying origin directories");
for (let index = 1; index <= 6; index++) {
let path = "storage/default/http+++example" + index + ".com";
let file = getRelativeFile(path);
if (index == (persistOldestOrigin ? 2 : 1)) {
ok(!file.exists(), "The origin directory " + path + " doesn't exist");
} else {
ok(file.exists(), "The origin directory " + path + " does exist");
}
}
request = clear();
await requestFinished(request);
}
resetGlobalLimit();
request = reset();
await requestFinished(request);
}