/trunk/test/fuzz.test |
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# 2007 May 10 |
# |
# The author disclaims copyright to this source code. In place of |
# a legal notice, here is a blessing: |
# |
# May you do good and not evil. |
# May you find forgiveness for yourself and forgive others. |
# May you share freely, never taking more than you give. |
# |
#*********************************************************************** |
# This file implements regression tests for SQLite library. The |
# focus of this file is generating semi-random strings of SQL |
# (a.k.a. "fuzz") and sending it into the parser to try to |
# generate errors. |
# |
# The tests in this file are really about testing fuzzily generated |
# SQL parse-trees. The majority of the fuzzily generated SQL is |
# valid as far as the parser is concerned. |
# |
# The most complicated trees are for SELECT statements. |
# |
# $Id: fuzz.test,v 1.19 2009/04/28 11:10:39 danielk1977 Exp $ |
|
set testdir [file dirname $argv0] |
source $testdir/tester.tcl |
|
set ::REPEATS 5000 |
|
# If running quick.test, don't do so many iterations. |
if {[info exists ::G(isquick)]} { |
if {$::G(isquick)} { set ::REPEATS 20 } |
} |
|
source $testdir/fuzz_common.tcl |
expr srand(0) |
|
#---------------------------------------------------------------- |
# These tests caused errors that were first caught by the tests |
# in this file. They are still here. |
do_test fuzz-1.1 { |
execsql { |
SELECT 'abc' LIKE X'ABCD'; |
} |
} {0} |
do_test fuzz-1.2 { |
execsql { |
SELECT 'abc' LIKE zeroblob(10); |
} |
} {0} |
do_test fuzz-1.3 { |
execsql { |
SELECT zeroblob(10) LIKE 'abc'; |
} |
} {0} |
do_test fuzz-1.4 { |
execsql { |
SELECT (- -21) % NOT (456 LIKE zeroblob(10)); |
} |
} {0} |
do_test fuzz-1.5 { |
execsql { |
SELECT (SELECT ( |
SELECT (SELECT -2147483648) FROM (SELECT 1) ORDER BY 1 |
)) |
} |
} {-2147483648} |
do_test fuzz-1.6 { |
execsql { |
SELECT 'abc', zeroblob(1) FROM (SELECT 1) ORDER BY 1 |
} |
} [execsql {SELECT 'abc', zeroblob(1)}] |
|
do_test fuzz-1.7 { |
execsql { |
SELECT ( SELECT zeroblob(1000) FROM ( |
SELECT * FROM (SELECT 'first') ORDER BY NOT 'in') |
) |
} |
} [execsql {SELECT zeroblob(1000)}] |
|
do_test fuzz-1.8 { |
# Problems with opcode OP_ToText (did not account for MEM_Zero). |
# Also MemExpandBlob() was marking expanded blobs as nul-terminated. |
# They are not. |
execsql { |
SELECT CAST(zeroblob(1000) AS text); |
} |
} {{}} |
|
do_test fuzz-1.9 { |
# This was causing a NULL pointer dereference of Expr.pList. |
execsql { |
SELECT 1 FROM (SELECT * FROM sqlite_master WHERE random()) |
} |
} {} |
|
do_test fuzz-1.10 { |
# Bug in calculation of Parse.ckOffset causing an assert() |
# to fail. Probably harmless. |
execsql { |
SELECT coalesce(1, substr( 1, 2, length('in' IN (SELECT 1)))) |
} |
} {1} |
|
do_test fuzz-1.11 { |
# The literals (A, B, C, D) are not important, they are just used |
# to make the EXPLAIN output easier to read. |
# |
# The problem here is that the EXISTS(...) expression leaves an |
# extra value on the VDBE stack. This is confusing the parent and |
# leads to an assert() failure when OP_Insert encounters an integer |
# when it expects a record blob. |
# |
# Update: Any query with (LIMIT 0) was leaking stack. |
# |
execsql { |
SELECT 'A' FROM (SELECT 'B') ORDER BY EXISTS ( |
SELECT 'C' FROM (SELECT 'D' LIMIT 0) |
) |
} |
} {A} |
|
do_test fuzz-1.12.1 { |
# Create a table with a single row. |
execsql { |
CREATE TABLE abc(b); |
INSERT INTO abc VALUES('ABCDE'); |
} |
|
# The following query was crashing. The later subquery (in the FROM) |
# clause was flattened into the parent, but the code was not repairng |
# the "b" reference in the other sub-query. When the query was executed, |
# that "b" refered to a non-existant vdbe table-cursor. |
# |
execsql { |
SELECT 1 IN ( SELECT b UNION SELECT 1 ) FROM (SELECT b FROM abc); |
} |
} {1} |
do_test fuzz-1.12.2 { |
# Clean up after the previous query. |
execsql { |
DROP TABLE abc; |
} |
} {} |
|
|
do_test fuzz-1.13 { |
# The problem here was that when there were more expressions in |
# the ORDER BY list than the result-set list. The temporary b-tree |
# used for sorting was being misconfigured in this case. |
# |
execsql { |
SELECT 'abcd' UNION SELECT 'efgh' ORDER BY 1 ASC, 1 ASC; |
} |
} {abcd efgh} |
|
do_test fuzz-1.14.1 { |
execsql { |
CREATE TABLE abc(a, b, c); |
INSERT INTO abc VALUES(123, 456, 789); |
} |
|
# The [a] reference in the sub-select was causing a problem. Because |
# the internal walkSelectExpr() function was not considering compound |
# SELECT operators. |
execsql { |
SELECT 1 FROM abc |
GROUP BY c HAVING EXISTS (SELECT a UNION SELECT 123); |
} |
} {1} |
do_test fuzz-1.14.2 { |
execsql { |
DROP TABLE abc; |
} |
} {} |
|
# Making sure previously discovered errors have been fixed. |
# |
do_test fuzz-1.15 { |
execsql { |
SELECT hex(CAST(zeroblob(1000) AS integer)) |
} |
} {30} |
|
do_test fuzz-1.16.1 { |
execsql { |
CREATE TABLE abc(a, b, c); |
CREATE TABLE def(a, b, c); |
CREATE TABLE ghi(a, b, c); |
} |
} {} |
do_test fuzz-1.16.2 { |
catchsql { |
SELECT DISTINCT EXISTS( |
SELECT 1 |
FROM ( |
SELECT C FROM (SELECT 1) |
) |
WHERE (SELECT c) |
) |
FROM abc |
} |
} {0 {}} |
do_test fuzz-1.16.3 { |
catchsql { |
SELECT DISTINCT substr(-456 ISNULL,zeroblob(1000), EXISTS( |
SELECT DISTINCT EXISTS( |
SELECT DISTINCT b FROM abc |
ORDER BY EXISTS ( |
SELECT DISTINCT 2147483647 UNION ALL SELECT -2147483648 |
) ASC |
) |
FROM ( |
SELECT c, c FROM ( |
SELECT 456, 'injection' ORDER BY 56.1 ASC, -56.1 DESC |
) |
) |
GROUP BY (SELECT ALL (SELECT DISTINCT 'hardware')) |
HAVING ( |
SELECT DISTINCT c |
FROM ( |
SELECT ALL -2147483648, 'experiments' |
ORDER BY -56.1 ASC, -56.1 DESC |
) |
GROUP BY (SELECT DISTINCT 456) IN |
(SELECT DISTINCT 'injection') NOT IN (SELECT ALL -456) |
HAVING EXISTS ( |
SELECT ALL 'injection' |
) |
) |
UNION ALL |
SELECT a IN ( |
SELECT -2147483647 |
UNION ALL |
SELECT ALL 'injection' |
) |
FROM sqlite_master |
) -- end EXISTS |
) /* end SUBSTR() */, c NOTNULL ISNULL |
FROM abc |
ORDER BY CAST(-56.1 AS blob) ASC |
} |
} {0 {}} |
do_test fuzz-1.16.4 { |
execsql { |
DROP TABLE abc; DROP TABLE def; DROP TABLE ghi; |
} |
} {} |
|
do_test fuzz-1.17 { |
catchsql { |
SELECT 'hardware', 56.1 NOTNULL, random()&0 |
FROM ( |
SELECT ALL lower(~ EXISTS ( |
SELECT 1 NOT IN (SELECT ALL 1) |
)), CAST(456 AS integer), -2147483647 |
FROM ( |
SELECT DISTINCT -456, CAST(1 AS integer) ISNULL |
FROM (SELECT ALL 2147483647, typeof(2147483649)) |
) |
) |
GROUP BY CAST(CAST('experiments' AS blob) AS blob) |
HAVING random() |
} |
} {0 {hardware 1 0}} |
|
do_test fuzz-1.18 { |
catchsql { |
SELECT -2147483649 << upper('fault' NOT IN ( |
SELECT ALL ( |
SELECT ALL -1 |
ORDER BY -2147483649 |
LIMIT ( |
SELECT ALL ( |
SELECT 0 EXCEPT SELECT DISTINCT 'experiments' ORDER BY 1 ASC |
) |
) |
OFFSET EXISTS ( |
SELECT ALL |
(SELECT ALL -2147483648) NOT IN ( |
SELECT ALL 123456789.1234567899 |
) IN (SELECT 2147483649) |
FROM sqlite_master |
) NOT IN (SELECT ALL 'The') |
) |
)) |
} |
} {0 -4294967298} |
|
# At one point the following INSERT statement caused an assert() to fail. |
# |
do_test fuzz-1.19 { |
execsql { CREATE TABLE t1(a) } |
catchsql { |
INSERT INTO t1 VALUES( |
CASE WHEN NULL THEN NULL ELSE ( SELECT 0 ORDER BY 456 ) END |
) |
} |
} {1 {1st ORDER BY term out of range - should be between 1 and 1}} |
do_test fuzz-1.20 { |
execsql { DROP TABLE t1 } |
} {} |
|
#---------------------------------------------------------------- |
# Test some fuzzily generated expressions. |
# |
do_fuzzy_test fuzz-2 -template { SELECT [Expr] } |
|
do_test fuzz-3.1 { |
execsql { |
CREATE TABLE abc(a, b, c); |
CREATE TABLE def(a, b, c); |
CREATE TABLE ghi(a, b, c); |
} |
} {} |
set ::TableList [list abc def ghi] |
|
#---------------------------------------------------------------- |
# Test some fuzzily generated SELECT statements. |
# |
do_fuzzy_test fuzz-3.2 -template {[Select]} |
|
#---------------------------------------------------------------- |
# Insert a small amount of data into the database and then run |
# some more generated SELECT statements. |
# |
do_test fuzz-4.1 { |
execsql { |
INSERT INTO abc VALUES(1, 2, 3); |
INSERT INTO abc VALUES(4, 5, 6); |
INSERT INTO abc VALUES(7, 8, 9); |
INSERT INTO def VALUES(1, 2, 3); |
INSERT INTO def VALUES(4, 5, 6); |
INSERT INTO def VALUES(7, 8, 9); |
INSERT INTO ghi VALUES(1, 2, 3); |
INSERT INTO ghi VALUES(4, 5, 6); |
INSERT INTO ghi VALUES(7, 8, 9); |
CREATE INDEX abc_i ON abc(a, b, c); |
CREATE INDEX def_i ON def(c, a, b); |
CREATE INDEX ghi_i ON ghi(b, c, a); |
} |
} {} |
do_fuzzy_test fuzz-4.2 -template {[Select]} |
|
#---------------------------------------------------------------- |
# Test some fuzzy INSERT statements: |
# |
do_test fuzz-5.1 {execsql BEGIN} {} |
do_fuzzy_test fuzz-5.2 -template {[Insert]} -errorlist table |
integrity_check fuzz-5.2.integrity |
do_test fuzz-5.3 {execsql COMMIT} {} |
integrity_check fuzz-5.4.integrity |
|
#---------------------------------------------------------------- |
# Now that there is data in the database, run some more SELECT |
# statements |
# |
set ::ColumnList [list a b c] |
set E {{no such col} {ambiguous column name}} |
do_fuzzy_test fuzz-6.1 -template {[Select]} -errorlist $E |
|
#---------------------------------------------------------------- |
# Run some SELECTs, INSERTs, UPDATEs and DELETEs in a transaction. |
# |
set E {{no such col} {ambiguous column name} {table}} |
do_test fuzz-7.1 {execsql BEGIN} {} |
do_fuzzy_test fuzz-7.2 -template {[Statement]} -errorlist $E |
integrity_check fuzz-7.3.integrity |
do_test fuzz-7.4 {execsql COMMIT} {} |
integrity_check fuzz-7.5.integrity |
|
#---------------------------------------------------------------- |
# Many CREATE and DROP TABLE statements: |
# |
set E [list table duplicate {no such col} {ambiguous column name} {use DROP}] |
do_fuzzy_test fuzz-8.1 -template {[CreateOrDropTableOrView]} -errorlist $E |
|
close $::log |
finish_test |