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Test Info:

/**
* Any copyright is dedicated to the Public Domain.
*/
async function testSteps() {
const principal = getPrincipal("http://localhost");
const resultBeforeInstall = 0;
const resultAfterInstall = 0;
const resultAfterInitializeStorage = 0;
const resultAfterInitializeTemporaryStorage = 98304;
function verifyResult(result, expectedResult) {
Assert.strictEqual(result, expectedResult, "Cached usage equals");
}
info("Clearing");
let request = clear();
await requestFinished(request);
info("Getting cached origin usage");
request = getCachedOriginUsage(principal);
let result = await requestFinished(request);
info("Verifying result");
verifyResult(result, resultBeforeInstall);
info("Clearing");
request = clear();
await requestFinished(request);
info("Installing package");
// The profile contains IndexedDB databases placed across the repositories.
// The file make_getUsageForPrincipal.js was run locally, specifically it was
// temporarily enabled in xpcshell.ini and then executed:
// mach test --interactive dom/quota/test/xpcshell/make_getCachedUsageForPrincipal.js
installPackage("getCachedUsageForPrincipal_profile");
info("Getting cached origin usage");
request = getCachedOriginUsage(principal);
result = await requestFinished(request);
info("Verifying result");
verifyResult(result, resultAfterInstall);
info("Initializing storage");
request = init();
await requestFinished(request);
info("Getting cached origin usage");
request = getCachedOriginUsage(principal);
result = await requestFinished(request);
info("Verifying result");
verifyResult(result, resultAfterInitializeStorage);
info("Initializing temporary storage");
request = initTemporaryStorage();
await requestFinished(request);
info("Getting cached origin usage");
request = getCachedOriginUsage(principal);
result = await requestFinished(request);
info("Verifying result");
verifyResult(result, resultAfterInitializeTemporaryStorage);
}