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 /* Any copyright is dedicated to the Public Domain.

  * http://creativecommons.org/publicdomain/zero/1.0/

  */

 // 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 = 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) {

     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.

     do_check_true(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")

   do_check_true(get_size(filename) >= CHUNK_SIZE)

 }