test_cache2-45-clear-base-domain-context-evictor.js

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"use strict";

// Same coverage gap as test_cache2-44, for clearing by base domain: the entries

// in test_cache2-33 are still in the memory pools when the clear happens, so

// the base domain filtering in CacheFileContextEvictor::EvictEntries() is never

// reached. That filter matches an entry either by the base domain of its URI or

// by the base domain of its partitionKey, and both are checked here.

const BASE_DOMAIN = "example.net";

const ORIGIN = "http://example.net";

const SUBDOMAIN = "http://subdomain.example.net";

const OTHER = "http://foo.bar";

const PARTITION_KEY = "(http,example.net)";

function openEntry(behavior, meta, data, url, lci = null) {

  return new Promise(resolve => {

    asyncOpenCacheEntry(

      url,

      "disk",

      Ci.nsICacheStorage.OPEN_NORMALLY,

      lci,

      new OpenCallback(behavior, meta, data, resolve)

);

});

add_task(async function test_clear_base_domain_through_context_evictor() {

  do_get_profile();

  Services.prefs.setIntPref(

    "browser.cache.disk.index.update_start_delay_ms",

);

  let partitioned = Services.loadContextInfo.custom(false, {

    partitionKey: PARTITION_KEY,

});

  await openEntry(NEW | WAITFORWRITE, "e1m", "e1d", ORIGIN + "/a");

  await openEntry(NEW | WAITFORWRITE, "s1m", "s1d", SUBDOMAIN + "/a");

  await openEntry(NEW | WAITFORWRITE, "f1m", "f1d", OTHER + "/a");

  await openEntry(NEW | WAITFORWRITE, "p1m", "p1d", OTHER + "/b", partitioned);

  await restart_cache2();

  Assert.equal(await count_cache2_entry_files(), 4, "four entries on disk");

  Services.cache2.clearBaseDomain(BASE_DOMAIN);

  await wait_for_context_eviction();

  Assert.equal(

    await count_cache2_entry_files(),

1,

    "the evictor kept only the entry unrelated to the cleared base domain"

);

  await openEntry(NEW, "e1m", "e1d", ORIGIN + "/a");

  await openEntry(NEW, "s1m", "s1d", SUBDOMAIN + "/a");

  await openEntry(NEW, "p1m", "p1d", OTHER + "/b", partitioned);

  await openEntry(NORMAL, "f1m", "f1d", OTHER + "/a");

});