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344 lines
8.0 KiB
Plaintext
344 lines
8.0 KiB
Plaintext
# 2007 May 02
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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. The
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# focus of this file is testing of the zero-filled blob functionality
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# including the sqlite3_bind_zeroblob(), sqlite3_result_zeroblob(),
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# and the built-in zeroblob() SQL function.
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#
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# $Id: zeroblob.test,v 1.14 2009/07/14 02:33:02 drh Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set testprefix zeroblob
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# ifcapable !incrblob { finish_test return }
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test_set_config_pagecache 0 0
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# When zeroblob() is used for the last field of a column, then the
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# content of the zeroblob is never instantiated on the VDBE stack.
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# But it does get inserted into the database correctly.
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#
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db eval {PRAGMA cache_size=10}
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sqlite3_memory_highwater 1
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unset -nocomplain memused
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set memused [sqlite3_memory_used]
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do_test zeroblob-1.1 {
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execsql {
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CREATE TABLE t1(a,b,c,d);
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}
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set ::sqlite3_max_blobsize 0
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execsql {
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INSERT INTO t1 VALUES(2,3,4,zeroblob(1000000));
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}
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} {}
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ifcapable incrblob {
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do_test zeroblob-1.1.1 {
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set ::sqlite3_max_blobsize
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} {10}
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do_test zeroblob-1.1.2 {
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expr {[sqlite3_memory_highwater]<$::memused+35000}
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} {1}
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}
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do_test zeroblob-1.2 {
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execsql {
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SELECT length(d) FROM t1
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}
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} {1000000}
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# If a non-NULL column follows the zeroblob, then the content of
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# the zeroblob must be instantiated.
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#
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do_test zeroblob-1.3 {
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set ::sqlite3_max_blobsize 0
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execsql {
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INSERT INTO t1 VALUES(3,4,zeroblob(10000),5);
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}
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set ::sqlite3_max_blobsize
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} {10010}
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do_test zeroblob-1.4 {
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execsql {
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SELECT length(c), length(d) FROM t1
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}
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} {1 1000000 10000 1}
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# Multiple zeroblobs can appear at the end of record. No instantiation
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# of the blob content occurs on the stack.
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#
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do_test zeroblob-1.5 {
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set ::sqlite3_max_blobsize 0
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execsql {
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INSERT INTO t1 VALUES(4,5,zeroblob(10000),zeroblob(10000));
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}
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} {}
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ifcapable incrblob {
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do_test zeroblob-1.5.1 {
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set ::sqlite3_max_blobsize
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} {11}
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}
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do_test zeroblob-1.6 {
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execsql {
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SELECT length(c), length(d) FROM t1
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}
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} {1 1000000 10000 1 10000 10000}
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# NULLs can follow the zeroblob() or be intermixed with zeroblobs and
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# no instantiation of the zeroblobs occurs on the stack.
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#
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do_test zeroblob-1.7 {
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set ::sqlite3_max_blobsize 0
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execsql {
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INSERT INTO t1 VALUES(5,zeroblob(10000),NULL,zeroblob(10000));
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}
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} {}
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ifcapable incrblob {
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do_test zeroblob-1.7.1 {
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set ::sqlite3_max_blobsize
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} {10}
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}
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do_test zeroblob-1.8 {
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execsql {
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SELECT length(b), length(d) FROM t1 WHERE a=5
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}
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} {10000 10000}
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# Comparisons against zeroblobs work.
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#
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do_test zeroblob-2.1 {
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execsql {
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SELECT a FROM t1 WHERE b=zeroblob(10000)
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}
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} {5}
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# Comparisons against zeroblobs work even when indexed.
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#
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do_test zeroblob-2.2 {
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execsql {
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CREATE INDEX i1_1 ON t1(b);
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SELECT a FROM t1 WHERE b=zeroblob(10000);
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}
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} {5}
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# DISTINCT works for zeroblobs
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#
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ifcapable bloblit&&subquery&&compound {
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do_test zeroblob-3.1 {
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execsql {
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SELECT count(DISTINCT a) FROM (
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SELECT x'00000000000000000000' AS a
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UNION ALL
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SELECT zeroblob(10) AS a
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)
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}
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} {1}
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}
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# Concatentation works with zeroblob
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#
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ifcapable bloblit {
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do_test zeroblob-4.1 {
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execsql {
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SELECT hex(zeroblob(2) || x'61')
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}
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} {000061}
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}
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# Check various CAST(...) operations on zeroblob.
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#
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do_test zeroblob-5.1 {
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execsql {
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SELECT CAST (zeroblob(100) AS REAL);
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}
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} {0.0}
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do_test zeroblob-5.2 {
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execsql {
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SELECT CAST (zeroblob(100) AS INTEGER);
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}
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} {0}
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do_test zeroblob-5.3 {
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execsql {
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SELECT CAST (zeroblob(100) AS TEXT);
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}
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} {{}}
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do_test zeroblob-5.4 {
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execsql {
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SELECT CAST(zeroblob(100) AS BLOB);
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}
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} [execsql {SELECT zeroblob(100)}]
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# Check for malicious use of zeroblob. Make sure nothing crashes.
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#
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do_test zeroblob-6.1.1 {
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execsql {select zeroblob(-1)}
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} {{}}
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do_test zeroblob-6.1.2 {
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execsql {select zeroblob(-10)}
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} {{}}
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do_test zeroblob-6.1.3 {
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execsql {select zeroblob(-100)}
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} {{}}
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do_test zeroblob-6.2 {
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execsql {select length(zeroblob(-1))}
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} {0}
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do_test zeroblob-6.3 {
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execsql {select zeroblob(-1)|1}
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} {1}
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do_test zeroblob-6.4 {
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catchsql {select length(zeroblob(2147483648))}
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} {1 {string or blob too big}}
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do_test zeroblob-6.5 {
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catchsql {select zeroblob(2147483648)}
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} {1 {string or blob too big}}
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do_test zeroblob-6.6 {
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execsql {select hex(zeroblob(-1))}
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} {{}}
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do_test zeroblob-6.7 {
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execsql {select typeof(zeroblob(-1))}
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} {blob}
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# Test bind_zeroblob()
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#
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sqlite3_memory_highwater 1
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unset -nocomplain memused
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set memused [sqlite3_memory_used]
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do_test zeroblob-7.1 {
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set ::STMT [sqlite3_prepare $::DB "SELECT length(?)" -1 DUMMY]
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set ::sqlite3_max_blobsize 0
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sqlite3_bind_zeroblob $::STMT 1 450000
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sqlite3_step $::STMT
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} {SQLITE_ROW}
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do_test zeroblob-7.2 {
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sqlite3_column_int $::STMT 0
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} {450000}
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do_test zeroblob-7.3 {
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sqlite3_finalize $::STMT
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} {SQLITE_OK}
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ifcapable incrblob {
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do_test zeroblob-7.4 {
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set ::sqlite3_max_blobsize
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} {0}
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do_test zeroblob-7.5 {
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expr {[sqlite3_memory_highwater]<$::memused+10000}
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} {1}
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}
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# Test that MakeRecord can handle a value with some real content
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# and a zero-blob tail.
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#
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do_test zeroblob-8.1 {
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llength [execsql {
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SELECT 'hello' AS a, zeroblob(10) as b from t1 ORDER BY a, b;
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}]
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} {8}
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# Ticket #3965
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# zeroblobs on either size of an IN operator
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#
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do_test zeroblob-9.1 {
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db eval {SELECT x'0000' IN (x'000000')}
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} {0}
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do_test zeroblob-9.2 {
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db eval {SELECT x'0000' IN (x'0000')}
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} {1}
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do_test zeroblob-9.3 {
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db eval {SELECT zeroblob(2) IN (x'000000')}
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} {0}
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do_test zeroblob-9.4 {
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db eval {SELECT zeroblob(2) IN (x'0000')}
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} {1}
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do_test zeroblob-9.5 {
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db eval {SELECT x'0000' IN (zeroblob(3))}
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} {0}
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do_test zeroblob-9.6 {
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db eval {SELECT x'0000' IN (zeroblob(2))}
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} {1}
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do_test zeroblob-9.7 {
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db eval {SELECT zeroblob(2) IN (zeroblob(3))}
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} {0}
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do_test zeroblob-9.8 {
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db eval {SELECT zeroblob(2) IN (zeroblob(2))}
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} {1}
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# Oversized zeroblob records
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#
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do_test zeroblob-10.1 {
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db eval {
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CREATE TABLE t10(a,b,c);
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}
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catchsql {INSERT INTO t10 VALUES(zeroblob(1e9),zeroblob(1e9),zeroblob(1e9))}
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} {1 {string or blob too big}}
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#-------------------------------------------------------------------------
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# Test the zeroblob() function on its own with negative or oversized
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# arguments.
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#
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do_execsql_test 11.0 {
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SELECT length(zeroblob(-1444444444444444));
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} {0}
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do_catchsql_test 11.1 {
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SELECT zeroblob(5000 * 1024 * 1024);
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} {1 {string or blob too big}}
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do_catchsql_test 11.2 {
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SELECT quote(zeroblob(5000 * 1024 * 1024));
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} {1 {string or blob too big}}
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do_catchsql_test 11.3 {
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SELECT quote(zeroblob(-1444444444444444));
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} {0 X''}
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do_catchsql_test 11.4 {
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SELECT quote(test_zeroblob(-1));
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} {0 X''}
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#-------------------------------------------------------------------------
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# Test the sqlite3_bind_zeroblob64() API.
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#
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proc bind_and_run {stmt nZero} {
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sqlite3_bind_zeroblob64 $stmt 1 $nZero
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sqlite3_step $stmt
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set ret [sqlite3_column_int $stmt 0]
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sqlite3_reset $stmt
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set ret
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}
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set stmt [sqlite3_prepare db "SELECT length(?)" -1 dummy]
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do_test 12.1 { bind_and_run $stmt 40 } 40
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do_test 12.2 { bind_and_run $stmt 0 } 0
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do_test 12.3 { bind_and_run $stmt 1000 } 1000
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do_test 12.4 {
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list [catch { bind_and_run $stmt [expr 5000 * 1024 * 1024] } msg] $msg
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} {1 SQLITE_TOOBIG}
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do_test 12.5 {
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sqlite3_step $stmt
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set ret [sqlite3_column_int $stmt 0]
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sqlite3_reset $stmt
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set ret
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} {1000}
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sqlite3_finalize $stmt
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# 2019-01-25 https://sqlite.org/src/tktview/bb4bdb9f7f654b0bb9f34cfbac
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# Zeroblob truncated by an index on expression
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#
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do_execsql_test 13.100 {
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DROP TABLE IF EXISTS t1;
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CREATE TABLE t1(a,b,c);
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CREATE INDEX t1bbc ON t1(b, b+c);
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INSERT INTO t1(a,b,c) VALUES(1,zeroblob(8),3);
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SELECT a, quote(b), length(b), c FROM t1;
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} {1 X'0000000000000000' 8 3}
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test_restore_config_pagecache
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finish_test
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