gecko/storage/test/unit/test_sqlite_secure_delete.js
2012-05-21 12:12:37 +01:00

91 lines
2.5 KiB
JavaScript

/*-*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**
* This file tests to make sure that SQLite was compiled with
* SQLITE_SECURE_DELETE=1.
*/
////////////////////////////////////////////////////////////////////////////////
//// Helper Methods
/**
* Reads the contents of a file and returns it as a string.
*
* @param aFile
* The file to return from.
* @return the contents of the file in the form of a string.
*/
function getFileContents(aFile)
{
let fstream = Cc["@mozilla.org/network/file-input-stream;1"].
createInstance(Ci.nsIFileInputStream);
fstream.init(aFile, -1, 0, 0);
let bstream = Cc["@mozilla.org/binaryinputstream;1"].
createInstance(Ci.nsIBinaryInputStream);
bstream.setInputStream(fstream);
return bstream.readBytes(bstream.available());
}
////////////////////////////////////////////////////////////////////////////////
//// Tests
function test_delete_removes_data()
{
const TEST_STRING = "SomeRandomStringToFind";
let file = getTestDB();
let db = getService().openDatabase(file);
// Create the table and insert the data.
db.createTable("test", "data TEXT");
let stmt = db.createStatement("INSERT INTO test VALUES(:data)");
stmt.params.data = TEST_STRING;
try {
stmt.execute();
}
finally {
stmt.finalize();
}
// Make sure this test is actually testing what it thinks by making sure the
// string shows up in the database. Because the previous statement was
// automatically wrapped in a transaction, the contents are already on disk.
let contents = getFileContents(file);
do_check_neq(-1, contents.indexOf(TEST_STRING));
// Delete the data, and then close the database.
stmt = db.createStatement("DELETE FROM test WHERE data = :data");
stmt.params.data = TEST_STRING;
try {
stmt.execute();
}
finally {
stmt.finalize();
}
db.close();
// Check the file to see if the string can be found.
contents = getFileContents(file);
do_check_eq(-1, contents.indexOf(TEST_STRING));
run_next_test();
}
////////////////////////////////////////////////////////////////////////////////
//// Test Runner
[
test_delete_removes_data,
].forEach(add_test);
function run_test()
{
cleanup();
run_next_test();
}