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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /storage/test/unit/test_chunk_growth.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'storage/test/unit/test_chunk_growth.js')
-rw-r--r-- | storage/test/unit/test_chunk_growth.js | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/storage/test/unit/test_chunk_growth.js b/storage/test/unit/test_chunk_growth.js new file mode 100644 index 0000000000..4bcdf86ce3 --- /dev/null +++ b/storage/test/unit/test_chunk_growth.js @@ -0,0 +1,51 @@ +// This file tests SQLITE_FCNTL_CHUNK_SIZE behaves as expected + +function run_sql(d, sql) { + var stmt = d.createStatement(sql); + stmt.execute(); + stmt.finalize(); +} + +function new_file(name) { + var file = Services.dirsvc.get("ProfD", Ci.nsIFile); + file.append(name); + return file; +} + +function get_size(name) { + return new_file(name).fileSize; +} + +function run_test() { + const filename = "chunked.sqlite"; + const CHUNK_SIZE = 512 * 1024; + var d = getDatabase(new_file(filename)); + try { + d.setGrowthIncrement(CHUNK_SIZE, ""); + } catch (e) { + if (e.result != Cr.NS_ERROR_FILE_TOO_BIG) { + throw e; + } + print("Too little free space to set CHUNK_SIZE!"); + return; + } + run_sql(d, "CREATE TABLE bloat(data varchar)"); + + var orig_size = get_size(filename); + /* Dump in at least 32K worth of data. + * While writing ensure that the file size growth in chunksize set above. + */ + const str1024 = new Array(1024).join("T"); + for (var i = 0; i < 32; i++) { + run_sql(d, "INSERT INTO bloat VALUES('" + str1024 + "')"); + var size = get_size(filename); + // Must not grow in small increments. + Assert.ok(size == orig_size || size >= CHUNK_SIZE); + } + /* In addition to growing in chunk-size increments, the db + * should shrink in chunk-size increments too. + */ + run_sql(d, "DELETE FROM bloat"); + run_sql(d, "VACUUM"); + Assert.ok(get_size(filename) >= CHUNK_SIZE); +} |