gecko-dev/storage/test/unit/test_vacuum.js

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JavaScript

/* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/
*/
// This file tests the Vacuum Manager.
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
Components.utils.import("resource://gre/modules/Services.jsm");
/**
* Loads a test component that will register as a vacuum-participant.
* If other participants are found they will be unregistered, to avoid conflicts
* with the test itself.
*/
function load_test_vacuum_component()
{
const CATEGORY_NAME = "vacuum-participant";
do_load_manifest("vacuumParticipant.manifest");
// This is a lazy check, there could be more participants than just this test
// we just mind that the test exists though.
const EXPECTED_ENTRIES = ["vacuumParticipant"];
let catMan = Cc["@mozilla.org/categorymanager;1"].
getService(Ci.nsICategoryManager);
let found = false;
let entries = catMan.enumerateCategory(CATEGORY_NAME);
while (entries.hasMoreElements()) {
let entry = entries.getNext().QueryInterface(Ci.nsISupportsCString).data;
print("Check if the found category entry (" + entry + ") is expected.");
if (EXPECTED_ENTRIES.indexOf(entry) != -1) {
print("Check that only one test entry exists.");
do_check_false(found);
found = true;
}
else {
// Temporary unregister other participants for this test.
catMan.deleteCategoryEntry("vacuum-participant", entry, false);
}
}
print("Check the test entry exists.");
do_check_true(found);
}
/**
* Sends a fake idle-daily notification to the VACUUM Manager.
*/
function synthesize_idle_daily()
{
let vm = Cc["@mozilla.org/storage/vacuum;1"].getService(Ci.nsIObserver);
vm.observe(null, "idle-daily", null);
}
/**
* Returns a new nsIFile reference for a profile database.
* @param filename for the database, excluded the .sqlite extension.
*/
function new_db_file(name)
{
let file = Services.dirsvc.get("ProfD", Ci.nsIFile);
file.append(name + ".sqlite");
return file;
}
function run_test()
{
do_test_pending();
// Change initial page size. Do it immediately since it would require an
// additional vacuum op to do it later. As a bonus this makes the page size
// change test really fast since it only has to check results.
let conn = getDatabase(new_db_file("testVacuum"));
conn.executeSimpleSQL("PRAGMA page_size = 1024");
print("Check current page size.");
let stmt = conn.createStatement("PRAGMA page_size");
try {
while (stmt.executeStep()) {
do_check_eq(stmt.row.page_size, 1024);
}
}
finally {
stmt.finalize();
}
load_test_vacuum_component();
run_next_test();
}
function run_next_test()
{
if (TESTS.length == 0) {
Services.obs.notifyObservers(null, "test-options", "dispose");
do_test_finished();
}
else {
// Set last VACUUM to a date in the past.
Services.prefs.setIntPref("storage.vacuum.last.testVacuum.sqlite",
parseInt(Date.now() / 1000 - 31 * 86400));
do_execute_soon(TESTS.shift());
}
}
const TESTS = [
function test_common_vacuum()
{
print("\n*** Test that a VACUUM correctly happens and all notifications are fired.");
// Wait for VACUUM begin.
let beginVacuumReceived = false;
Services.obs.addObserver(function (aSubject, aTopic, aData) {
Services.obs.removeObserver(arguments.callee, aTopic, false);
beginVacuumReceived = true;
}, "test-begin-vacuum", false);
// Wait for heavy IO notifications.
let heavyIOTaskBeginReceived = false;
let heavyIOTaskEndReceived = false;
Services.obs.addObserver(function (aSubject, aTopic, aData) {
if (heavyIOTaskBeginReceived && heavyIOTaskEndReceived) {
Services.obs.removeObserver(arguments.callee, aTopic, false);
}
if (aData == "vacuum-begin") {
heavyIOTaskBeginReceived = true;
}
else if (aData == "vacuum-end") {
heavyIOTaskEndReceived = true;
}
}, "heavy-io-task", false);
// Wait for VACUUM end.
Services.obs.addObserver(function (aSubject, aTopic, aData) {
Services.obs.removeObserver(arguments.callee, aTopic, false);
print("Check we received onBeginVacuum");
do_check_true(beginVacuumReceived);
print("Check we received heavy-io-task notifications");
do_check_true(heavyIOTaskBeginReceived);
do_check_true(heavyIOTaskEndReceived);
print("Received onEndVacuum");
run_next_test();
}, "test-end-vacuum", false);
synthesize_idle_daily();
},
function test_skipped_if_recent_vacuum()
{
print("\n*** Test that a VACUUM is skipped if it was run recently.");
Services.prefs.setIntPref("storage.vacuum.last.testVacuum.sqlite",
parseInt(Date.now() / 1000));
// Wait for VACUUM begin.
let vacuumObserver = {
gotNotification: false,
observe: function VO_observe(aSubject, aTopic, aData) {
this.gotNotification = true;
},
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver])
}
Services.obs.addObserver(vacuumObserver, "test-begin-vacuum", false);
// Check after a couple seconds that no VACUUM has been run.
do_timeout(2000, function () {
print("Check VACUUM did not run.");
do_check_false(vacuumObserver.gotNotification);
Services.obs.removeObserver(vacuumObserver, "test-begin-vacuum");
run_next_test();
});
synthesize_idle_daily();
},
function test_page_size_change()
{
print("\n*** Test that a VACUUM changes page_size");
// We did setup the database with a small page size, the previous vacuum
// should have updated it.
print("Check that page size was updated.");
let conn = getDatabase(new_db_file("testVacuum"));
let stmt = conn.createStatement("PRAGMA page_size");
try {
while (stmt.executeStep()) {
do_check_eq(stmt.row.page_size, Ci.mozIStorageConnection.DEFAULT_PAGE_SIZE);
}
}
finally {
stmt.finalize();
}
run_next_test();
},
function test_skipped_optout_vacuum()
{
print("\n*** Test that a VACUUM is skipped if the participant wants to opt-out.");
Services.obs.notifyObservers(null, "test-options", "opt-out");
// Wait for VACUUM begin.
let vacuumObserver = {
gotNotification: false,
observe: function VO_observe(aSubject, aTopic, aData) {
this.gotNotification = true;
},
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver])
}
Services.obs.addObserver(vacuumObserver, "test-begin-vacuum", false);
// Check after a couple seconds that no VACUUM has been run.
do_timeout(2000, function () {
print("Check VACUUM did not run.");
do_check_false(vacuumObserver.gotNotification);
Services.obs.removeObserver(vacuumObserver, "test-begin-vacuum");
run_next_test();
});
synthesize_idle_daily();
},
/* Changing page size on WAL is not supported till Bug 634374 is properly fixed.
function test_page_size_change_with_wal()
{
print("\n*** Test that a VACUUM changes page_size with WAL mode");
Services.obs.notifyObservers(null, "test-options", "wal");
// Set a small page size.
let conn = getDatabase(new_db_file("testVacuum2"));
conn.executeSimpleSQL("PRAGMA page_size = 1024");
let stmt = conn.createStatement("PRAGMA page_size");
try {
while (stmt.executeStep()) {
do_check_eq(stmt.row.page_size, 1024);
}
}
finally {
stmt.finalize();
}
// Use WAL journal mode.
conn.executeSimpleSQL("PRAGMA journal_mode = WAL");
stmt = conn.createStatement("PRAGMA journal_mode");
try {
while (stmt.executeStep()) {
do_check_eq(stmt.row.journal_mode, "wal");
}
}
finally {
stmt.finalize();
}
// Wait for VACUUM end.
let vacuumObserver = {
observe: function VO_observe(aSubject, aTopic, aData) {
Services.obs.removeObserver(this, aTopic);
print("Check page size has been updated.");
let stmt = conn.createStatement("PRAGMA page_size");
try {
while (stmt.executeStep()) {
do_check_eq(stmt.row.page_size, Ci.mozIStorageConnection.DEFAULT_PAGE_SIZE);
}
}
finally {
stmt.finalize();
}
print("Check journal mode has been restored.");
stmt = conn.createStatement("PRAGMA journal_mode");
try {
while (stmt.executeStep()) {
do_check_eq(stmt.row.journal_mode, "wal");
}
}
finally {
stmt.finalize();
}
run_next_test();
},
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver])
}
Services.obs.addObserver(vacuumObserver, "test-end-vacuum", false);
synthesize_idle_daily();
},
*/
function test_memory_database_crash()
{
print("\n*** Test that we don't crash trying to vacuum a memory database");
Services.obs.notifyObservers(null, "test-options", "memory");
// Wait for VACUUM begin.
let vacuumObserver = {
gotNotification: false,
observe: function VO_observe(aSubject, aTopic, aData) {
this.gotNotification = true;
},
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver])
}
Services.obs.addObserver(vacuumObserver, "test-begin-vacuum", false);
// Check after a couple seconds that no VACUUM has been run.
do_timeout(2000, function () {
print("Check VACUUM did not run.");
do_check_false(vacuumObserver.gotNotification);
Services.obs.removeObserver(vacuumObserver, "test-begin-vacuum");
run_next_test();
});
synthesize_idle_daily();
},
/* Changing page size on WAL is not supported till Bug 634374 is properly fixed.
function test_wal_restore_fail()
{
print("\n*** Test that a failing WAL restoration notifies failure");
Services.obs.notifyObservers(null, "test-options", "wal-fail");
// Wait for VACUUM end.
let vacuumObserver = {
observe: function VO_observe(aSubject, aTopic, aData) {
Services.obs.removeObserver(vacuumObserver, "test-end-vacuum");
print("Check WAL restoration failed.");
do_check_false(aData);
run_next_test();
},
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver])
}
Services.obs.addObserver(vacuumObserver, "test-end-vacuum", false);
synthesize_idle_daily();
},
*/
];