68 lines
1.7 KiB
Plaintext
68 lines
1.7 KiB
Plaintext
# 2014 March 25.
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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# This file implements regression tests for SQLite library.
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#
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# The tests in this file verify that sorting works when the library is
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# configured to use mmap(), but the temporary files generated by the
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# sorter are too large to be completely mapped.
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set testprefix sort3
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# Sort roughly 20MB of data. Once with a mmap limit of 5MB and once without.
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#
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foreach {itest limit} {
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1 5000000
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2 0x7FFFFFFF
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} {
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sqlite3_test_control SQLITE_TESTCTRL_SORTER_MMAP db $limit
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do_execsql_test 1.$itest {
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WITH r(x,y) AS (
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SELECT 1, randomblob(1000)
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UNION ALL
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SELECT x+1, randomblob(1000) FROM r
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LIMIT 20000
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)
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SELECT count(*), sum(length(y)) FROM r GROUP BY (x%5);
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} {
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4000 4000000
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4000 4000000
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4000 4000000
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4000 4000000
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4000 4000000
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}
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}
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# Sort more than 2GB of data. At one point this was causing a problem.
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# This test might take one minute or more to run.
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#
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do_execsql_test 2 {
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PRAGMA cache_size = 20000;
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WITH r(x,y) AS (
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SELECT 1, randomblob(1000)
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UNION ALL
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SELECT x+1, randomblob(1000) FROM r
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LIMIT 2200000
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)
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SELECT count(*), sum(length(y)) FROM r GROUP BY (x%5);
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} {
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440000 440000000
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440000 440000000
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440000 440000000
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440000 440000000
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440000 440000000
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}
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finish_test
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