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-rw-r--r--extensions/cookie/test/unit/test_eviction.js249
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diff --git a/extensions/cookie/test/unit/test_eviction.js b/extensions/cookie/test/unit/test_eviction.js
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+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+var test_generator = do_run_test();
+
+function run_test()
+{
+ do_test_pending();
+ do_run_generator(test_generator);
+}
+
+function continue_test()
+{
+ do_run_generator(test_generator);
+}
+
+function repeat_test()
+{
+ // The test is probably going to fail because setting a batch of cookies took
+ // a significant fraction of 'gPurgeAge'. Compensate by rerunning the
+ // test with a larger purge age.
+ do_check_true(gPurgeAge < 64);
+ gPurgeAge *= 2;
+ gShortExpiry *= 2;
+
+ do_execute_soon(function() {
+ test_generator.close();
+ test_generator = do_run_test();
+ do_run_generator(test_generator);
+ });
+}
+
+// Purge threshold, in seconds.
+var gPurgeAge = 1;
+
+// Short expiry age, in seconds.
+var gShortExpiry = 2;
+
+// Required delay to ensure a purge occurs, in milliseconds. This must be at
+// least gPurgeAge + 10%, and includes a little fuzz to account for timer
+// resolution and possible differences between PR_Now() and Date.now().
+function get_purge_delay()
+{
+ return gPurgeAge * 1100 + 100;
+}
+
+// Required delay to ensure a cookie set with an expiry time 'gShortExpiry' into
+// the future will have expired.
+function get_expiry_delay()
+{
+ return gShortExpiry * 1000 + 100;
+}
+
+function do_run_test()
+{
+ // Set up a profile.
+ let profile = do_get_profile();
+
+ // twiddle prefs to convenient values for this test
+ Services.prefs.setIntPref("network.cookie.purgeAge", gPurgeAge);
+ Services.prefs.setIntPref("network.cookie.maxNumber", 100);
+
+ let expiry = Date.now() / 1000 + 1000;
+
+ // eviction is performed based on two limits: when the total number of cookies
+ // exceeds maxNumber + 10% (110), and when cookies are older than purgeAge
+ // (1 second). purging is done when both conditions are satisfied, and only
+ // those cookies are purged.
+
+ // we test the following cases of eviction:
+ // 1) excess and age are satisfied, but only some of the excess are old enough
+ // to be purged.
+ Services.cookiemgr.removeAll();
+ if (!set_cookies(0, 5, expiry)) {
+ repeat_test();
+ return;
+ }
+ // Sleep a while, to make sure the first batch of cookies is older than
+ // the second (timer resolution varies on different platforms).
+ do_timeout(get_purge_delay(), continue_test);
+ yield;
+ if (!set_cookies(5, 111, expiry)) {
+ repeat_test();
+ return;
+ }
+
+ // Fake a profile change, to ensure eviction affects the database correctly.
+ do_close_profile(test_generator);
+ yield;
+ do_load_profile();
+ do_check_true(check_remaining_cookies(111, 5, 106));
+
+ // 2) excess and age are satisfied, and all of the excess are old enough
+ // to be purged.
+ Services.cookiemgr.removeAll();
+ if (!set_cookies(0, 10, expiry)) {
+ repeat_test();
+ return;
+ }
+ do_timeout(get_purge_delay(), continue_test);
+ yield;
+ if (!set_cookies(10, 111, expiry)) {
+ repeat_test();
+ return;
+ }
+
+ do_close_profile(test_generator);
+ yield;
+ do_load_profile();
+ do_check_true(check_remaining_cookies(111, 10, 101));
+
+ // 3) excess and age are satisfied, and more than the excess are old enough
+ // to be purged.
+ Services.cookiemgr.removeAll();
+ if (!set_cookies(0, 50, expiry)) {
+ repeat_test();
+ return;
+ }
+ do_timeout(get_purge_delay(), continue_test);
+ yield;
+ if (!set_cookies(50, 111, expiry)) {
+ repeat_test();
+ return;
+ }
+
+ do_close_profile(test_generator);
+ yield;
+ do_load_profile();
+ do_check_true(check_remaining_cookies(111, 50, 101));
+
+ // 4) excess but not age are satisfied.
+ Services.cookiemgr.removeAll();
+ if (!set_cookies(0, 120, expiry)) {
+ repeat_test();
+ return;
+ }
+
+ do_close_profile(test_generator);
+ yield;
+ do_load_profile();
+ do_check_true(check_remaining_cookies(120, 0, 120));
+
+ // 5) age but not excess are satisfied.
+ Services.cookiemgr.removeAll();
+ if (!set_cookies(0, 20, expiry)) {
+ repeat_test();
+ return;
+ }
+ do_timeout(get_purge_delay(), continue_test);
+ yield;
+ if (!set_cookies(20, 110, expiry)) {
+ repeat_test();
+ return;
+ }
+
+ do_close_profile(test_generator);
+ yield;
+ do_load_profile();
+ do_check_true(check_remaining_cookies(110, 20, 110));
+
+ // 6) Excess and age are satisfied, but the cookie limit can be satisfied by
+ // purging expired cookies.
+ Services.cookiemgr.removeAll();
+ let shortExpiry = Math.floor(Date.now() / 1000) + gShortExpiry;
+ if (!set_cookies(0, 20, shortExpiry)) {
+ repeat_test();
+ return;
+ }
+ do_timeout(get_expiry_delay(), continue_test);
+ yield;
+ if (!set_cookies(20, 110, expiry)) {
+ repeat_test();
+ return;
+ }
+ do_timeout(get_purge_delay(), continue_test);
+ yield;
+ if (!set_cookies(110, 111, expiry)) {
+ repeat_test();
+ return;
+ }
+
+ do_close_profile(test_generator);
+ yield;
+ do_load_profile();
+ do_check_true(check_remaining_cookies(111, 20, 91));
+
+ do_finish_generator_test(test_generator);
+}
+
+// Set 'end - begin' total cookies, with consecutively increasing hosts numbered
+// 'begin' to 'end'.
+function set_cookies(begin, end, expiry)
+{
+ do_check_true(begin != end);
+
+ let beginTime;
+ for (let i = begin; i < end; ++i) {
+ let host = "eviction." + i + ".tests";
+ Services.cookiemgr.add(host, "", "test", "eviction", false, false, false,
+ expiry, {});
+
+ if (i == begin)
+ beginTime = get_creationTime(i);
+ }
+
+ let endTime = get_creationTime(end - 1);
+ do_check_true(begin == end - 1 || endTime > beginTime);
+ if (endTime - beginTime > gPurgeAge * 1000000) {
+ // Setting cookies took an amount of time very close to the purge threshold.
+ // Retry the test with a larger threshold.
+ return false;
+ }
+
+ return true;
+}
+
+function get_creationTime(i)
+{
+ let host = "eviction." + i + ".tests";
+ let enumerator = Services.cookiemgr.getCookiesFromHost(host, {});
+ do_check_true(enumerator.hasMoreElements());
+ let cookie = enumerator.getNext().QueryInterface(Ci.nsICookie2);
+ return cookie.creationTime;
+}
+
+// Test that 'aNumberToExpect' cookies remain after purging is complete, and
+// that the cookies that remain consist of the set expected given the number of
+// of older and newer cookies -- eviction should occur by order of lastAccessed
+// time, if both the limit on total cookies (maxNumber + 10%) and the purge age
+// + 10% are exceeded.
+function check_remaining_cookies(aNumberTotal, aNumberOld, aNumberToExpect) {
+ var enumerator = Services.cookiemgr.enumerator;
+
+ let i = 0;
+ while (enumerator.hasMoreElements()) {
+ var cookie = enumerator.getNext().QueryInterface(Ci.nsICookie2);
+ ++i;
+
+ if (aNumberTotal != aNumberToExpect) {
+ // make sure the cookie is one of the batch we expect was purged.
+ var hostNumber = new Number(cookie.rawHost.split(".")[1]);
+ if (hostNumber < (aNumberOld - aNumberToExpect)) break;
+ }
+ }
+
+ return i == aNumberToExpect;
+}