1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/storage/test/unit/test_chunk_growth.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,55 @@
1.4 +/* Any copyright is dedicated to the Public Domain.
1.5 + * http://creativecommons.org/publicdomain/zero/1.0/
1.6 + */
1.7 +
1.8 +// This file tests SQLITE_FCNTL_CHUNK_SIZE behaves as expected
1.9 +
1.10 +function run_sql(d, sql) {
1.11 + var stmt = d.createStatement(sql)
1.12 + stmt.execute()
1.13 + stmt.finalize();
1.14 +}
1.15 +
1.16 +function new_file(name)
1.17 +{
1.18 + var file = dirSvc.get("ProfD", Ci.nsIFile);
1.19 + file.append(name);
1.20 + return file;
1.21 +}
1.22 +
1.23 +function get_size(name) {
1.24 + return new_file(name).fileSize
1.25 +}
1.26 +
1.27 +function run_test()
1.28 +{
1.29 + const filename = "chunked.sqlite";
1.30 + const CHUNK_SIZE = 512 * 1024;
1.31 + var d = getDatabase(new_file(filename));
1.32 + try {
1.33 + d.setGrowthIncrement(CHUNK_SIZE, "");
1.34 + } catch (e if e.result == Cr.NS_ERROR_FILE_TOO_BIG) {
1.35 + print("Too little free space to set CHUNK_SIZE!");
1.36 + return;
1.37 + }
1.38 + run_sql(d, "CREATE TABLE bloat(data varchar)");
1.39 +
1.40 + var orig_size = get_size(filename);
1.41 + /* Dump in at least 32K worth of data.
1.42 + * While writing ensure that the file size growth in chunksize set above.
1.43 + */
1.44 + const str1024 = new Array(1024).join("T");
1.45 + for(var i = 0; i < 32; i++) {
1.46 + run_sql(d, "INSERT INTO bloat VALUES('" + str1024 + "')");
1.47 + var size = get_size(filename)
1.48 + // Must not grow in small increments.
1.49 + do_check_true(size == orig_size || size >= CHUNK_SIZE);
1.50 + }
1.51 + /* In addition to growing in chunk-size increments, the db
1.52 + * should shrink in chunk-size increments too.
1.53 + */
1.54 + run_sql(d, "DELETE FROM bloat")
1.55 + run_sql(d, "VACUUM")
1.56 + do_check_true(get_size(filename) >= CHUNK_SIZE)
1.57 +}
1.58 +
