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Test Info:
- Manifest: dom/quota/test/xpcshell/xpcshell.toml
/**
* Any copyright is dedicated to the Public Domain.
*/
loadScript("dom/quota/test/xpcshell/common/utils.js");
async function verifyGroupEstimation(principal, expectedUsage, expectedLimit) {
info("Estimating group");
const request = estimateGroupUsage(principal);
await requestFinished(request);
is(request.result.usage, expectedUsage, "Correct usage");
is(request.result.limit, expectedLimit, "Correct limit");
}
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 groupLimitBytes = groupLimitKB * 1024;
const globalLimitKB = groupLimitKB * 5;
const globalLimitBytes = globalLimitKB * 1024;
info("Setting limits");
setGlobalLimit(globalLimitKB);
info("Clearing");
let request = clear();
await requestFinished(request);
info("Filling origins");
info("Verifying group estimations");
// The usage is the total usage of the group, regardless of which origin in
// the group is passed in, and the limit is the group limit.
await verifyGroupEstimation(
300,
groupLimitBytes
);
await verifyGroupEstimation(
300,
groupLimitBytes
);
await verifyGroupEstimation(
700,
groupLimitBytes
);
await verifyGroupEstimation(
700,
groupLimitBytes
);
info("Persisting origin");
await requestFinished(request);
info("Verifying group estimations");
// A persisted origin is exempt from the group limit and is bound by the
// global limit instead, so it reports its own usage against that limit.
await verifyGroupEstimation(
400,
globalLimitBytes
);
// The persisted origin no longer counts towards the group usage seen by the
// other origins in the group.
await verifyGroupEstimation(
300,
groupLimitBytes
);
info("Writing to an unrelated group");
info("Verifying the group does not observe the unrelated write");
await verifyGroupEstimation(
300,
groupLimitBytes
);
finishTest();
}