The Tor Browser: comparison extensions/cookie/test/unit/test_domain_eviction.js

comparison: extensions/cookie/test/unit/test_domain_eviction.js

extensions/cookie/test/unit/test_domain_eviction.js

changeset 0: 6474c204b198

equal deleted inserted replaced

--1:000000000000
+:274f2aabb53f
+/* Any copyright is dedicated to the Public Domain.
+http://creativecommons.org/publicdomain/zero/1.0/ */
+// Test that domain eviction occurs when the cookies per base domain limit is
+// reached, and that expired cookies are evicted before live cookies.
+let 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 do_run_test()
+{
+// Set the base domain limit to 50 so we have a known value.
+Services.prefs.setIntPref("network.cookie.maxPerHost", 50);
+let futureExpiry = Math.floor(Date.now() / 1000 + 1000);
+// test eviction under the 50 cookies per base domain limit. this means
+// that cookies for foo.com and bar.foo.com should count toward this limit,
+// while cookies for baz.com should not. there are several tests we perform
+// to make sure the base domain logic is working correctly.
+// 1) simplest case: set 100 cookies for "foo.bar" and make sure 50 survive.
+setCookies("foo.bar", 100, futureExpiry);
+do_check_eq(countCookies("foo.bar", "foo.bar"), 50);
+// 2) set cookies for different subdomains of "foo.baz", and an unrelated
+// domain, and make sure all 50 within the "foo.baz" base domain are counted.
+setCookies("foo.baz", 10, futureExpiry);
+setCookies(".foo.baz", 10, futureExpiry);
+setCookies("bar.foo.baz", 10, futureExpiry);
+setCookies("baz.bar.foo.baz", 10, futureExpiry);
+setCookies("unrelated.domain", 50, futureExpiry);
+do_check_eq(countCookies("foo.baz", "baz.bar.foo.baz"), 40);
+setCookies("foo.baz", 20, futureExpiry);
+do_check_eq(countCookies("foo.baz", "baz.bar.foo.baz"), 50);
+// 3) ensure cookies are evicted by order of lastAccessed time, if the
+// limit on cookies per base domain is reached.
+setCookies("horse.radish", 10, futureExpiry);
+// Wait a while, to make sure the first batch of cookies is older than
+// the second (timer resolution varies on different platforms).
+do_timeout(100, continue_test);
+yield;
+setCookies("tasty.horse.radish", 50, futureExpiry);
+do_check_eq(countCookies("horse.radish", "horse.radish"), 50);
+let enumerator = Services.cookiemgr.enumerator;
+while (enumerator.hasMoreElements()) {
+let cookie = enumerator.getNext().QueryInterface(Ci.nsICookie2);
+if (cookie.host == "horse.radish")
+do_throw("cookies not evicted by lastAccessed order");
+}
+// Test that expired cookies for a domain are evicted before live ones.
+let shortExpiry = Math.floor(Date.now() / 1000 + 2);
+setCookies("captchart.com", 49, futureExpiry);
+Services.cookiemgr.add("captchart.com", "", "test100", "eviction",
+false, false, false, shortExpiry);
+do_timeout(2100, continue_test);
+yield;
+do_check_eq(countCookies("captchart.com", "captchart.com"), 50);
+Services.cookiemgr.add("captchart.com", "", "test200", "eviction",
+false, false, false, futureExpiry);
+do_check_eq(countCookies("captchart.com", "captchart.com"), 50);
+let enumerator = Services.cookiemgr.getCookiesFromHost("captchart.com");
+while (enumerator.hasMoreElements()) {
+let cookie = enumerator.getNext().QueryInterface(Ci.nsICookie2);
+do_check_true(cookie.expiry == futureExpiry);
+}
+do_finish_generator_test(test_generator);
+}
+// set 'aNumber' cookies with host 'aHost', with distinct names.
+function
+setCookies(aHost, aNumber, aExpiry)
+{
+for (let i = 0; i < aNumber; ++i)
+Services.cookiemgr.add(aHost, "", "test" + i, "eviction",
+false, false, false, aExpiry);
+}
+// count how many cookies are within domain 'aBaseDomain', using three
+// independent interface methods on nsICookieManager2:
+// 1) 'enumerator', an enumerator of all cookies;
+// 2) 'countCookiesFromHost', which returns the number of cookies within the
+//    base domain of 'aHost',
+// 3) 'getCookiesFromHost', which returns an enumerator of 2).
+function
+countCookies(aBaseDomain, aHost)
+{
+let enumerator = Services.cookiemgr.enumerator;
+// count how many cookies are within domain 'aBaseDomain' using the cookie
+// enumerator.
+let cookies = [];
+while (enumerator.hasMoreElements()) {
+let cookie = enumerator.getNext().QueryInterface(Ci.nsICookie2);
+if (cookie.host.length >= aBaseDomain.length &&
+cookie.host.slice(cookie.host.length - aBaseDomain.length) == aBaseDomain)
+cookies.push(cookie);
+}
+// confirm the count using countCookiesFromHost and getCookiesFromHost.
+let result = cookies.length;
+do_check_eq(Services.cookiemgr.countCookiesFromHost(aBaseDomain),
+cookies.length);
+do_check_eq(Services.cookiemgr.countCookiesFromHost(aHost), cookies.length);
+enumerator = Services.cookiemgr.getCookiesFromHost(aHost);
+while (enumerator.hasMoreElements()) {
+let cookie = enumerator.getNext().QueryInterface(Ci.nsICookie2);
+if (cookie.host.length >= aBaseDomain.length &&
+cookie.host.slice(cookie.host.length - aBaseDomain.length) == aBaseDomain) {
+let found = false;
+for (let i = 0; i < cookies.length; ++i) {
+if (cookies[i].host == cookie.host && cookies[i].name == cookie.name) {
+found = true;
+cookies.splice(i, 1);
+break;
+}
+}
+if (!found)
+do_throw("cookie " + cookie.name + " not found in master enumerator");
+} else {
+do_throw("cookie host " + cookie.host + " not within domain " + aBaseDomain);
+}
+}
+do_check_eq(cookies.length, 0);
+return result;
+}