380 lines
10 KiB
Plaintext
380 lines
10 KiB
Plaintext
# 2007 May 10
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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 generating semi-random strings of SQL
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# (a.k.a. "fuzz") and sending it into the parser to try to
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# generate errors.
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#
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# The tests in this file are really about testing fuzzily generated
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# SQL parse-trees. The majority of the fuzzily generated SQL is
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# valid as far as the parser is concerned.
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#
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# The most complicated trees are for SELECT statements.
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#
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# $Id: fuzz.test,v 1.19 2009/04/28 11:10:39 danielk1977 Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set ::REPEATS 5000
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# If running quick.test, don't do so many iterations.
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if {[info exists ::ISQUICK]} {
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if {$::ISQUICK} { set ::REPEATS 20 }
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}
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source $testdir/fuzz_common.tcl
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expr srand(0)
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#----------------------------------------------------------------
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# These tests caused errors that were first caught by the tests
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# in this file. They are still here.
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do_test fuzz-1.1 {
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execsql {
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SELECT 'abc' LIKE X'ABCD';
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}
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} {0}
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do_test fuzz-1.2 {
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execsql {
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SELECT 'abc' LIKE zeroblob(10);
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}
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} {0}
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do_test fuzz-1.3 {
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execsql {
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SELECT zeroblob(10) LIKE 'abc';
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}
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} {0}
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do_test fuzz-1.4 {
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execsql {
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SELECT (- -21) % NOT (456 LIKE zeroblob(10));
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}
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} {0}
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do_test fuzz-1.5 {
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execsql {
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SELECT (SELECT (
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SELECT (SELECT -2147483648) FROM (SELECT 1) ORDER BY 1
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))
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}
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} {-2147483648}
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do_test fuzz-1.6 {
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execsql {
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SELECT 'abc', zeroblob(1) FROM (SELECT 1) ORDER BY 1
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}
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} [execsql {SELECT 'abc', zeroblob(1)}]
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do_test fuzz-1.7 {
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execsql {
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SELECT ( SELECT zeroblob(1000) FROM (
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SELECT * FROM (SELECT 'first') ORDER BY NOT 'in')
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)
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}
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} [execsql {SELECT zeroblob(1000)}]
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do_test fuzz-1.8 {
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# Problems with opcode OP_ToText (did not account for MEM_Zero).
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# Also MemExpandBlob() was marking expanded blobs as nul-terminated.
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# They are not.
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execsql {
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SELECT CAST(zeroblob(1000) AS text);
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}
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} {{}}
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do_test fuzz-1.9 {
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# This was causing a NULL pointer dereference of Expr.pList.
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execsql {
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SELECT 1 FROM (SELECT * FROM sqlite_master WHERE random())
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}
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} {}
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do_test fuzz-1.10 {
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# Bug in calculation of Parse.ckOffset causing an assert()
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# to fail. Probably harmless.
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execsql {
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SELECT coalesce(1, substr( 1, 2, length('in' IN (SELECT 1))))
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}
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} {1}
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do_test fuzz-1.11 {
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# The literals (A, B, C, D) are not important, they are just used
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# to make the EXPLAIN output easier to read.
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#
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# The problem here is that the EXISTS(...) expression leaves an
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# extra value on the VDBE stack. This is confusing the parent and
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# leads to an assert() failure when OP_Insert encounters an integer
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# when it expects a record blob.
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#
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# Update: Any query with (LIMIT 0) was leaking stack.
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#
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execsql {
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SELECT 'A' FROM (SELECT 'B') ORDER BY EXISTS (
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SELECT 'C' FROM (SELECT 'D' LIMIT 0)
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)
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}
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} {A}
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do_test fuzz-1.12.1 {
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# Create a table with a single row.
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execsql {
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CREATE TABLE abc(b);
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INSERT INTO abc VALUES('ABCDE');
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}
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# The following query was crashing. The later subquery (in the FROM)
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# clause was flattened into the parent, but the code was not repairng
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# the "b" reference in the other sub-query. When the query was executed,
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# that "b" refered to a non-existant vdbe table-cursor.
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#
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execsql {
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SELECT 1 IN ( SELECT b UNION SELECT 1 ) FROM (SELECT b FROM abc);
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}
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} {1}
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do_test fuzz-1.12.2 {
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# Clean up after the previous query.
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execsql {
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DROP TABLE abc;
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}
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} {}
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do_test fuzz-1.13 {
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# The problem here was that when there were more expressions in
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# the ORDER BY list than the result-set list. The temporary b-tree
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# used for sorting was being misconfigured in this case.
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#
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execsql {
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SELECT 'abcd' UNION SELECT 'efgh' ORDER BY 1 ASC, 1 ASC;
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}
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} {abcd efgh}
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do_test fuzz-1.14.1 {
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execsql {
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CREATE TABLE abc(a, b, c);
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INSERT INTO abc VALUES(123, 456, 789);
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}
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# The [a] reference in the sub-select was causing a problem. Because
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# the internal walkSelectExpr() function was not considering compound
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# SELECT operators.
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execsql {
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SELECT 1 FROM abc
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GROUP BY c HAVING EXISTS (SELECT a UNION SELECT 123);
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}
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} {1}
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do_test fuzz-1.14.2 {
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execsql {
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DROP TABLE abc;
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}
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} {}
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# Making sure previously discovered errors have been fixed.
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#
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do_test fuzz-1.15 {
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execsql {
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SELECT hex(CAST(zeroblob(1000) AS integer))
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}
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} {30}
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do_test fuzz-1.16.1 {
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execsql {
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CREATE TABLE abc(a, b, c);
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CREATE TABLE def(a, b, c);
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CREATE TABLE ghi(a, b, c);
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}
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} {}
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do_test fuzz-1.16.2 {
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catchsql {
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SELECT DISTINCT EXISTS(
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SELECT 1
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FROM (
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SELECT C FROM (SELECT 1)
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)
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WHERE (SELECT c)
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)
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FROM abc
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}
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} {0 {}}
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do_test fuzz-1.16.3 {
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catchsql {
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SELECT DISTINCT substr(-456 ISNULL,zeroblob(1000), EXISTS(
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SELECT DISTINCT EXISTS(
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SELECT DISTINCT b FROM abc
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ORDER BY EXISTS (
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SELECT DISTINCT 2147483647 UNION ALL SELECT -2147483648
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) ASC
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)
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FROM (
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SELECT c, c FROM (
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SELECT 456, 'injection' ORDER BY 56.1 ASC, -56.1 DESC
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)
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)
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GROUP BY (SELECT ALL (SELECT DISTINCT 'hardware'))
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HAVING (
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SELECT DISTINCT c
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FROM (
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SELECT ALL -2147483648, 'experiments'
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ORDER BY -56.1 ASC, -56.1 DESC
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)
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GROUP BY (SELECT DISTINCT 456) IN
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(SELECT DISTINCT 'injection') NOT IN (SELECT ALL -456)
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HAVING EXISTS (
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SELECT ALL 'injection'
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)
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)
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UNION ALL
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SELECT a IN (
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SELECT -2147483647
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UNION ALL
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SELECT ALL 'injection'
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)
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FROM sqlite_master
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) -- end EXISTS
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) /* end SUBSTR() */, c NOTNULL ISNULL
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FROM abc
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ORDER BY CAST(-56.1 AS blob) ASC
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}
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} {0 {}}
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do_test fuzz-1.16.4 {
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execsql {
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DROP TABLE abc; DROP TABLE def; DROP TABLE ghi;
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}
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} {}
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do_test fuzz-1.17 {
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catchsql {
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SELECT 'hardware', 56.1 NOTNULL, random()&0
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FROM (
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SELECT ALL lower(~ EXISTS (
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SELECT 1 NOT IN (SELECT ALL 1)
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)), CAST(456 AS integer), -2147483647
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FROM (
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SELECT DISTINCT -456, CAST(1 AS integer) ISNULL
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FROM (SELECT ALL 2147483647, typeof(2147483649))
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)
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)
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GROUP BY CAST(CAST('experiments' AS blob) AS blob)
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HAVING random()
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}
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} {0 {hardware 1 0}}
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do_test fuzz-1.18 {
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catchsql {
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SELECT -2147483649 << upper('fault' NOT IN (
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SELECT ALL (
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SELECT ALL -1
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ORDER BY -2147483649
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LIMIT (
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SELECT ALL (
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SELECT 0 EXCEPT SELECT DISTINCT 'experiments' ORDER BY 1 ASC
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)
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)
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OFFSET EXISTS (
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SELECT ALL
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(SELECT ALL -2147483648) NOT IN (
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SELECT ALL 123456789.1234567899
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) IN (SELECT 2147483649)
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FROM sqlite_master
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) NOT IN (SELECT ALL 'The')
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)
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))
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}
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} {0 -4294967298}
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# At one point the following INSERT statement caused an assert() to fail.
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#
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do_test fuzz-1.19 {
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execsql { CREATE TABLE t1(a) }
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catchsql {
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INSERT INTO t1 VALUES(
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CASE WHEN NULL THEN NULL ELSE ( SELECT 0 ORDER BY 456 ) END
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)
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}
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} {1 {1st ORDER BY term out of range - should be between 1 and 1}}
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do_test fuzz-1.20 {
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execsql { DROP TABLE t1 }
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} {}
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#----------------------------------------------------------------
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# Test some fuzzily generated expressions.
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#
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do_fuzzy_test fuzz-2 -template { SELECT [Expr] }
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do_test fuzz-3.1 {
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execsql {
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CREATE TABLE abc(a, b, c);
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CREATE TABLE def(a, b, c);
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CREATE TABLE ghi(a, b, c);
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}
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} {}
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set ::TableList [list abc def ghi]
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#----------------------------------------------------------------
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# Test some fuzzily generated SELECT statements.
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#
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do_fuzzy_test fuzz-3.2 -template {[Select]}
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#----------------------------------------------------------------
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# Insert a small amount of data into the database and then run
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# some more generated SELECT statements.
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#
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do_test fuzz-4.1 {
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execsql {
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INSERT INTO abc VALUES(1, 2, 3);
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INSERT INTO abc VALUES(4, 5, 6);
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INSERT INTO abc VALUES(7, 8, 9);
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INSERT INTO def VALUES(1, 2, 3);
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INSERT INTO def VALUES(4, 5, 6);
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INSERT INTO def VALUES(7, 8, 9);
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INSERT INTO ghi VALUES(1, 2, 3);
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INSERT INTO ghi VALUES(4, 5, 6);
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INSERT INTO ghi VALUES(7, 8, 9);
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CREATE INDEX abc_i ON abc(a, b, c);
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CREATE INDEX def_i ON def(c, a, b);
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CREATE INDEX ghi_i ON ghi(b, c, a);
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}
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} {}
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do_fuzzy_test fuzz-4.2 -template {[Select]}
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#----------------------------------------------------------------
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# Test some fuzzy INSERT statements:
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#
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do_test fuzz-5.1 {execsql BEGIN} {}
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do_fuzzy_test fuzz-5.2 -template {[Insert]} -errorlist table
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integrity_check fuzz-5.2.integrity
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do_test fuzz-5.3 {execsql COMMIT} {}
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integrity_check fuzz-5.4.integrity
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#----------------------------------------------------------------
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# Now that there is data in the database, run some more SELECT
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# statements
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#
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set ::ColumnList [list a b c]
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set E {{no such col} {ambiguous column name}}
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do_fuzzy_test fuzz-6.1 -template {[Select]} -errorlist $E
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#----------------------------------------------------------------
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# Run some SELECTs, INSERTs, UPDATEs and DELETEs in a transaction.
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#
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set E {{no such col} {ambiguous column name} {table}}
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do_test fuzz-7.1 {execsql BEGIN} {}
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do_fuzzy_test fuzz-7.2 -template {[Statement]} -errorlist $E
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integrity_check fuzz-7.3.integrity
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do_test fuzz-7.4 {execsql COMMIT} {}
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integrity_check fuzz-7.5.integrity
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#----------------------------------------------------------------
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# Many CREATE and DROP TABLE statements:
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#
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set E [list table duplicate {no such col} {ambiguous column name} {use DROP}]
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do_fuzzy_test fuzz-8.1 -template {[CreateOrDropTableOrView]} -errorlist $E
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close $::log
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finish_test
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