| # 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 {{}}} |
| |
| # 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 |
