toolkit/components/places/tests/expiration/test_pref_interval.js

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/toolkit/components/places/tests/expiration/test_pref_interval.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,144 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
     1.5 + * vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
     1.6 + * This Source Code Form is subject to the terms of the Mozilla Public
     1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.9 +
    1.10 +/**
    1.11 + * What this is aimed to test:
    1.12 + *
    1.13 + * Expiration relies on an interval, that is user-preffable setting
    1.14 + * "places.history.expiration.interval_seconds".
    1.15 + * On pref change it will stop current interval timer and fire a new one,
    1.16 + * that will obey the new value.
    1.17 + * If the pref is set to a number <= 0 we will use the default value.
    1.18 + */
    1.19 +
    1.20 +// Default timer value for expiration in seconds.  Must have same value as
    1.21 +// PREF_INTERVAL_SECONDS_NOTSET in nsPlacesExpiration.
    1.22 +const DEFAULT_TIMER_DELAY_SECONDS = 3 * 60;
    1.23 +
    1.24 +// Sync this with the const value in the component.
    1.25 +const EXPIRE_AGGRESSIVITY_MULTIPLIER = 3;
    1.26 +
    1.27 +// Provide a mock timer implementation, so there is no need to wait seconds to
    1.28 +// achieve test results.
    1.29 +const Cm = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
    1.30 +const TIMER_CONTRACT_ID = "@mozilla.org/timer;1";
    1.31 +const kMockCID = Components.ID("52bdf457-4de3-48ae-bbbb-f3cbcbcad05f");
    1.32 +
    1.33 +// Used to preserve the original timer factory.
    1.34 +let gOriginalCID = Cm.contractIDToCID(TIMER_CONTRACT_ID);
    1.35 +
    1.36 +// The mock timer factory.
    1.37 +let gMockTimerFactory = {
    1.38 +  createInstance: function MTF_createInstance(aOuter, aIID) {
    1.39 +    if (aOuter != null)
    1.40 +      throw Cr.NS_ERROR_NO_AGGREGATION;
    1.41 +    return mockTimerImpl.QueryInterface(aIID);
    1.42 +  },
    1.43 +
    1.44 +  QueryInterface: XPCOMUtils.generateQI([
    1.45 +    Ci.nsIFactory,
    1.46 +  ])
    1.47 +}
    1.48 +
    1.49 +let mockTimerImpl = {
    1.50 +  initWithCallback: function MTI_initWithCallback(aCallback, aDelay, aType) {
    1.51 +    print("Checking timer delay equals expected interval value");
    1.52 +    if (!currentTest)
    1.53 +      return;
    1.54 +    // History status is not dirty, so the timer is delayed.
    1.55 +    do_check_eq(aDelay, currentTest.expectedTimerDelay * 1000 * EXPIRE_AGGRESSIVITY_MULTIPLIER)
    1.56 +
    1.57 +    do_execute_soon(runNextTest);
    1.58 +  },
    1.59 +
    1.60 +  cancel: function() {},
    1.61 +  initWithFuncCallback: function() {},
    1.62 +  init: function() {},
    1.63 +
    1.64 +  QueryInterface: XPCOMUtils.generateQI([
    1.65 +    Ci.nsITimer,
    1.66 +  ])
    1.67 +}
    1.68 +
    1.69 +function replace_timer_factory() {
    1.70 +  Cm.registerFactory(kMockCID,
    1.71 +                     "Mock timer",
    1.72 +                     TIMER_CONTRACT_ID,
    1.73 +                     gMockTimerFactory);
    1.74 +}
    1.75 +
    1.76 +do_register_cleanup(function() {
    1.77 +  // Shutdown expiration before restoring original timer, otherwise we could
    1.78 +  // leak due to the different implementation.
    1.79 +  shutdownExpiration();
    1.80 +
    1.81 +  // Restore original timer factory.
    1.82 +  Cm.unregisterFactory(kMockCID,
    1.83 +                       gMockTimerFactory);
    1.84 +  Cm.registerFactory(gOriginalCID,
    1.85 +                     "",
    1.86 +                     TIMER_CONTRACT_ID,
    1.87 +                     null);
    1.88 +});
    1.89 +
    1.90 +
    1.91 +let tests = [
    1.92 +
    1.93 +  // This test should be the first, so the interval won't be influenced by
    1.94 +  // status of history.
    1.95 +  { desc: "Set interval to 1s.",
    1.96 +    interval: 1,
    1.97 +    expectedTimerDelay: 1
    1.98 +  },
    1.99 +
   1.100 +  { desc: "Set interval to a negative value.",
   1.101 +    interval: -1,
   1.102 +    expectedTimerDelay: DEFAULT_TIMER_DELAY_SECONDS
   1.103 +  },
   1.104 +
   1.105 +  { desc: "Set interval to 0.",
   1.106 +    interval: 0,
   1.107 +    expectedTimerDelay: DEFAULT_TIMER_DELAY_SECONDS
   1.108 +  },
   1.109 +
   1.110 +  { desc: "Set interval to a large value.",
   1.111 +    interval: 100,
   1.112 +    expectedTimerDelay: 100
   1.113 +  },
   1.114 +
   1.115 +];
   1.116 +
   1.117 +let currentTest;
   1.118 +
   1.119 +function run_test() {
   1.120 +  // The pref should not exist by default.
   1.121 +  try {
   1.122 +    getInterval();
   1.123 +    do_throw("interval pref should not exist by default");
   1.124 +  }
   1.125 +  catch (ex) {}
   1.126 +
   1.127 +  // Use our own mock timer implementation.
   1.128 +  replace_timer_factory();
   1.129 +
   1.130 +  // Force the component, so it will start observing preferences.
   1.131 +  force_expiration_start();
   1.132 +
   1.133 +  runNextTest();
   1.134 +  do_test_pending();
   1.135 +}
   1.136 +
   1.137 +function runNextTest() {
   1.138 +  if (tests.length) {
   1.139 +    currentTest = tests.shift();
   1.140 +    print(currentTest.desc);
   1.141 +    setInterval(currentTest.interval);
   1.142 +  }
   1.143 +  else {
   1.144 +    clearInterval();
   1.145 +    do_test_finished();
   1.146 +  }
   1.147 +}

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