64 lines
1.6 KiB
Plaintext
64 lines
1.6 KiB
Plaintext
# 2019 May 16
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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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#
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#
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source [file join [file dirname [info script]] fts5_common.tcl]
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set testprefix fts5corrupt4
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# If SQLITE_ENABLE_FTS5 is defined, omit this file.
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ifcapable !fts5 {
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finish_test
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return
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}
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sqlite3_fts5_may_be_corrupt 1
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do_execsql_test 1.0 {
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CREATE VIRTUAL TABLE ttt USING fts5(a, b);
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INSERT INTO ttt
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VALUES('e ee eee e ee eee e ee eee', 'eee ee e e e ee eee ee ee');
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INSERT INTO ttt SELECT a||a, b||b FROM ttt;
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INSERT INTO ttt SELECT a||a, b||b FROM ttt;
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}
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expr srand(1)
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proc mutate {blob i} {
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set o [expr {$i % [string length $blob]}]
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set a [string range $blob 0 $o-1]
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set b [string range $blob $o+1 end]
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set v [expr int(rand()*255) - 127]
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return "$a[binary format c $v]$b"
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}
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db func mutate mutate
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for {set j 1000} {$j <= 5000} {incr j 1000} {
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do_test 1.$j {
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for {set i 0} {$i < 1000} {incr i} {
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execsql {
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BEGIN;
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UPDATE ttt_data SET block = mutate(block, $i) WHERE id>10;
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}
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foreach sql {
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{SELECT snippet(ttt, -1, '.', '..', '[', ']'), * FROM ttt('e*')}
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{SELECT snippet(ttt, -1, '.', '..', '[', ']'), * FROM ttt('e* NOT ee*')}
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} {
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catch { execsql $sql }
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}
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execsql ROLLBACK
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}
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} {}
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}
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sqlite3_fts5_may_be_corrupt 0
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finish_test
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