firefox-main/toolkit/mozapps/update/tests/unit_update_binary/marFailureCompleteStaleBackup.js (file symbol)

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Test Info: Warnings

/* Any copyright is dedicated to the Public Domain.
*/
/* Complete MAR file apply failure test during the Draft phase with a stale
* backup file */
/**
* A backup that a previous updater instance would have left behind if it had
* died before discarding it, for a file that the precomplete removes.
*/
const STALE_BACKUP_REL_PATH =
DIR_RESOURCES + "searchplugins/searchpluginspng0.png.moz-backup";
const STALE_BACKUP_CONTENTS = "LeftBehindByAPreviousUpdaterRun\n";
async function run_test() {
if (!setupTestCommon()) {
return;
}
gTestFiles = gTestFilesCompleteSuccess;
gTestDirs = gTestDirsCompleteSuccess;
setTestFilesAndDirsForFailure();
await setupUpdaterTest(FILE_COMPLETE_MAR, false);
let staleBackup = getApplyDirFile(STALE_BACKUP_REL_PATH);
writeFile(staleBackup, STALE_BACKUP_CONTENTS);
Services.env.set("MOZ_TEST_DRAFT_WRITE_FAIL", "00png0.png");
try {
// If execv is used the updater process will turn into the callback process
// and the updater's return code will be that of the callback process.
runUpdate(STATE_FAILED_WRITE_ERROR, false, USE_EXECV ? 0 : 1, true);
} finally {
Services.env.set("MOZ_TEST_DRAFT_WRITE_FAIL", "");
}
checkAppBundleModTime();
await testPostUpdateProcessing();
checkPostUpdateRunningFile(false);
checkUpdateLogContains(
[
"AddFile::Draft: TEST fault injection, pretending the draft write " +
"failed: " +
DIR_RESOURCES +
"0/00/00png0.png",
"### draft failed",
].join("\n")
);
Assert.ok(
staleBackup.exists(),
MSG_SHOULD_EXIST + getMsgPath(staleBackup.path)
);
Assert.equal(
readFileBytes(staleBackup),
STALE_BACKUP_CONTENTS,
"the stale backup contents" + MSG_SHOULD_EQUAL
);
checkUpdateLogContains(
"backup_restore: not restoring a backup that this action did not create: " +
STALE_BACKUP_REL_PATH
);
// The check for temporary files that checkFilesAfterUpdateFailure performs
// would find the stale backup, which the updater leaves in place on purpose.
staleBackup.remove(false);
checkFilesAfterUpdateFailure(getApplyDirFile);
await waitForUpdateXMLFiles(true, false);
await checkUpdateManager(STATE_PENDING, true, STATE_PENDING, WRITE_ERROR, 0);
checkCallbackLog();
}