96 lines
2.6 KiB
Plaintext
96 lines
2.6 KiB
Plaintext
# 2010 October 27
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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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# Test that the FTS3 extension does not crash when it encounters a
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# corrupt data structure on disk.
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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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# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
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ifcapable !fts3 { finish_test ; return }
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set ::testprefix fts3corrupt
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# Test that a doclist with a length field that indicates that the doclist
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# extends past the end of the node on which it resides is correctly identified
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# as database corruption.
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#
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do_execsql_test 1.0 {
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CREATE VIRTUAL TABLE t1 USING fts3;
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INSERT INTO t1 VALUES('hello');
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} {}
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do_test fts3corrupt-1.1 {
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set blob [db one {SELECT root from t1_segdir}]
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set blob [binary format a7ca* $blob 24 [string range $blob 8 end]]
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execsql { UPDATE t1_segdir SET root = $blob }
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} {}
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do_test fts3corrupt-1.2 {
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foreach w {a b c d e f g h i j k l m n o} {
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execsql { INSERT INTO t1 VALUES($w) }
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}
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} {}
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do_catchsql_test 1.3 {
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INSERT INTO t1 VALUES('world');
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} {1 {database disk image is malformed}}
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do_execsql_test 1.4 {
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DROP TABLE t1;
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}
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# This block of tests checks that corruption is correctly detected if the
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# length field of a term on a leaf node indicates that the term extends past
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# the end of the node on which it resides. There are two cases:
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#
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# 1. The first term on the node.
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# 2. The second or subsequent term on the node (prefix compressed term).
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#
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do_execsql_test 2.0 {
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CREATE VIRTUAL TABLE t1 USING fts3;
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BEGIN;
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INSERT INTO t1 VALUES('hello');
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INSERT INTO t1 VALUES('hello');
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INSERT INTO t1 VALUES('hello');
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INSERT INTO t1 VALUES('hello');
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INSERT INTO t1 VALUES('hello');
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COMMIT;
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} {}
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do_test fts3corrupt-2.1 {
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set blob [db one {SELECT root from t1_segdir}]
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set blob [binary format a*a* "\x00\x7F" [string range $blob 2 end]]
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execsql { UPDATE t1_segdir SET root = $blob }
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} {}
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do_catchsql_test 2.2 {
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SELECT rowid FROM t1 WHERE t1 MATCH 'hello'
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} {1 {database disk image is malformed}}
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do_execsql_test 3.0 {
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DROP TABLE t1;
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CREATE VIRTUAL TABLE t1 USING fts3;
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BEGIN;
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INSERT INTO t1 VALUES('hello');
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INSERT INTO t1 VALUES('world');
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COMMIT;
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} {}
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do_test fts3corrupt-3.1 {
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set blob [db one {SELECT quote(root) from t1_segdir}]
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set blob [binary format a11a*a* $blob "\x7F" [string range $blob 12 end]]
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execsql { UPDATE t1_segdir SET root = $blob }
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} {}
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do_catchsql_test 3.2 {
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SELECT rowid FROM t1 WHERE t1 MATCH 'world'
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} {1 {database disk image is malformed}}
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finish_test
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