mirror of
https://github.com/tursodatabase/libsql.git
synced 2024-12-15 21:29:01 +00:00
393 lines
10 KiB
Tcl
393 lines
10 KiB
Tcl
# 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.
|
|
#
|
|
#***********************************************************************
|
|
#
|
|
# $Id: fuzz_common.tcl,v 1.2 2009/01/05 19:36:30 drh Exp $
|
|
|
|
proc fuzz {TemplateList} {
|
|
set n [llength $TemplateList]
|
|
set i [expr {int(rand()*$n)}]
|
|
set r [uplevel 1 subst -novar [list [lindex $TemplateList $i]]]
|
|
|
|
string map {"\n" " "} $r
|
|
}
|
|
|
|
# Fuzzy generation primitives:
|
|
#
|
|
# Literal
|
|
# UnaryOp
|
|
# BinaryOp
|
|
# Expr
|
|
# Table
|
|
# Select
|
|
# Insert
|
|
#
|
|
|
|
# Returns a string representing an SQL literal.
|
|
#
|
|
proc Literal {} {
|
|
set TemplateList {
|
|
456 0 -456 1 -1
|
|
2147483648 2147483647 2147483649 -2147483647 -2147483648 -2147483649
|
|
'The' 'first' 'experiments' 'in' 'hardware' 'fault' 'injection'
|
|
zeroblob(1000)
|
|
NULL
|
|
56.1 -56.1
|
|
123456789.1234567899
|
|
}
|
|
fuzz $TemplateList
|
|
}
|
|
|
|
# Returns a string containing an SQL unary operator (e.g. "+" or "NOT").
|
|
#
|
|
proc UnaryOp {} {
|
|
set TemplateList {+ - NOT ~}
|
|
fuzz $TemplateList
|
|
}
|
|
|
|
# Returns a string containing an SQL binary operator (e.g. "*" or "/").
|
|
#
|
|
proc BinaryOp {} {
|
|
set TemplateList {
|
|
|| * / % + - << >> & | < <= > >= = == != <> AND OR
|
|
LIKE GLOB {NOT LIKE}
|
|
}
|
|
fuzz $TemplateList
|
|
}
|
|
|
|
# Return the complete text of an SQL expression.
|
|
#
|
|
set ::ExprDepth 0
|
|
proc Expr { {c {}} } {
|
|
incr ::ExprDepth
|
|
|
|
set TemplateList [concat $c $c $c {[Literal]}]
|
|
if {$::ExprDepth < 3} {
|
|
lappend TemplateList \
|
|
{[Expr $c] [BinaryOp] [Expr $c]} \
|
|
{[UnaryOp] [Expr $c]} \
|
|
{[Expr $c] ISNULL} \
|
|
{[Expr $c] NOTNULL} \
|
|
{CAST([Expr $c] AS blob)} \
|
|
{CAST([Expr $c] AS text)} \
|
|
{CAST([Expr $c] AS integer)} \
|
|
{CAST([Expr $c] AS real)} \
|
|
{abs([Expr])} \
|
|
{coalesce([Expr], [Expr])} \
|
|
{hex([Expr])} \
|
|
{length([Expr])} \
|
|
{lower([Expr])} \
|
|
{upper([Expr])} \
|
|
{quote([Expr])} \
|
|
{random()} \
|
|
{randomblob(min(max([Expr],1), 500))} \
|
|
{typeof([Expr])} \
|
|
{substr([Expr],[Expr],[Expr])} \
|
|
{CASE WHEN [Expr $c] THEN [Expr $c] ELSE [Expr $c] END} \
|
|
{[Literal]} {[Literal]} {[Literal]} \
|
|
{[Literal]} {[Literal]} {[Literal]} \
|
|
{[Literal]} {[Literal]} {[Literal]} \
|
|
{[Literal]} {[Literal]} {[Literal]}
|
|
}
|
|
if {$::SelectDepth < 4} {
|
|
lappend TemplateList \
|
|
{([Select 1])} \
|
|
{[Expr $c] IN ([Select 1])} \
|
|
{[Expr $c] NOT IN ([Select 1])} \
|
|
{EXISTS ([Select 1])} \
|
|
}
|
|
set res [fuzz $TemplateList]
|
|
incr ::ExprDepth -1
|
|
return $res
|
|
}
|
|
|
|
# Return a valid table name.
|
|
#
|
|
set ::TableList [list]
|
|
proc Table {} {
|
|
set TemplateList [concat sqlite_master $::TableList]
|
|
fuzz $TemplateList
|
|
}
|
|
|
|
# Return one of:
|
|
#
|
|
# "SELECT DISTINCT", "SELECT ALL" or "SELECT"
|
|
#
|
|
proc SelectKw {} {
|
|
set TemplateList {
|
|
"SELECT DISTINCT"
|
|
"SELECT ALL"
|
|
"SELECT"
|
|
}
|
|
fuzz $TemplateList
|
|
}
|
|
|
|
# Return a result set for a SELECT statement.
|
|
#
|
|
proc ResultSet {{nRes 0} {c ""}} {
|
|
if {$nRes == 0} {
|
|
set nRes [expr {rand()*2 + 1}]
|
|
}
|
|
|
|
set aRes [list]
|
|
for {set ii 0} {$ii < $nRes} {incr ii} {
|
|
lappend aRes [Expr $c]
|
|
}
|
|
|
|
join $aRes ", "
|
|
}
|
|
|
|
set ::SelectDepth 0
|
|
set ::ColumnList [list]
|
|
proc SimpleSelect {{nRes 0}} {
|
|
|
|
set TemplateList {
|
|
{[SelectKw] [ResultSet $nRes]}
|
|
}
|
|
|
|
# The ::SelectDepth variable contains the number of ancestor SELECT
|
|
# statements (i.e. for a top level SELECT it is set to 0, for a
|
|
# sub-select 1, for a sub-select of a sub-select 2 etc.).
|
|
#
|
|
# If this is already greater than 3, do not generate a complicated
|
|
# SELECT statement. This tends to cause parser stack overflow (too
|
|
# boring to bother with).
|
|
#
|
|
if {$::SelectDepth < 4} {
|
|
lappend TemplateList \
|
|
{[SelectKw] [ResultSet $nRes $::ColumnList] FROM ([Select])} \
|
|
{[SelectKw] [ResultSet $nRes] FROM ([Select])} \
|
|
{[SelectKw] [ResultSet $nRes $::ColumnList] FROM [Table]} \
|
|
{
|
|
[SelectKw] [ResultSet $nRes $::ColumnList]
|
|
FROM ([Select])
|
|
GROUP BY [Expr]
|
|
HAVING [Expr]
|
|
} \
|
|
|
|
if {0 == $nRes} {
|
|
lappend TemplateList \
|
|
{[SelectKw] * FROM ([Select])} \
|
|
{[SelectKw] * FROM [Table]} \
|
|
{[SelectKw] * FROM [Table] WHERE [Expr $::ColumnList]} \
|
|
{
|
|
[SelectKw] *
|
|
FROM [Table],[Table] AS t2
|
|
WHERE [Expr $::ColumnList]
|
|
} {
|
|
[SelectKw] *
|
|
FROM [Table] LEFT OUTER JOIN [Table] AS t2
|
|
ON [Expr $::ColumnList]
|
|
WHERE [Expr $::ColumnList]
|
|
}
|
|
}
|
|
}
|
|
|
|
fuzz $TemplateList
|
|
}
|
|
|
|
# Return a SELECT statement.
|
|
#
|
|
# If boolean parameter $isExpr is set to true, make sure the
|
|
# returned SELECT statement returns a single column of data.
|
|
#
|
|
proc Select {{nMulti 0}} {
|
|
set TemplateList {
|
|
{[SimpleSelect $nMulti]} {[SimpleSelect $nMulti]} {[SimpleSelect $nMulti]}
|
|
{[SimpleSelect $nMulti]} {[SimpleSelect $nMulti]} {[SimpleSelect $nMulti]}
|
|
{[SimpleSelect $nMulti]} {[SimpleSelect $nMulti]} {[SimpleSelect $nMulti]}
|
|
{[SimpleSelect $nMulti]} {[SimpleSelect $nMulti]} {[SimpleSelect $nMulti]}
|
|
{[SimpleSelect $nMulti] ORDER BY [Expr] DESC}
|
|
{[SimpleSelect $nMulti] ORDER BY [Expr] ASC}
|
|
{[SimpleSelect $nMulti] ORDER BY [Expr] ASC, [Expr] DESC}
|
|
{[SimpleSelect $nMulti] ORDER BY [Expr] LIMIT [Expr] OFFSET [Expr]}
|
|
}
|
|
|
|
if {$::SelectDepth < 4} {
|
|
if {$nMulti == 0} {
|
|
set nMulti [expr {(rand()*2)+1}]
|
|
}
|
|
lappend TemplateList \
|
|
{[SimpleSelect $nMulti] UNION [Select $nMulti]} \
|
|
{[SimpleSelect $nMulti] UNION ALL [Select $nMulti]} \
|
|
{[SimpleSelect $nMulti] EXCEPT [Select $nMulti]} \
|
|
{[SimpleSelect $nMulti] INTERSECT [Select $nMulti]}
|
|
}
|
|
|
|
incr ::SelectDepth
|
|
set res [fuzz $TemplateList]
|
|
incr ::SelectDepth -1
|
|
set res
|
|
}
|
|
|
|
# Generate and return a fuzzy INSERT statement.
|
|
#
|
|
proc Insert {} {
|
|
set TemplateList {
|
|
{INSERT INTO [Table] VALUES([Expr], [Expr], [Expr]);}
|
|
{INSERT INTO [Table] VALUES([Expr], [Expr], [Expr], [Expr]);}
|
|
{INSERT INTO [Table] VALUES([Expr], [Expr]);}
|
|
}
|
|
fuzz $TemplateList
|
|
}
|
|
|
|
proc Column {} {
|
|
fuzz $::ColumnList
|
|
}
|
|
|
|
# Generate and return a fuzzy UPDATE statement.
|
|
#
|
|
proc Update {} {
|
|
set TemplateList {
|
|
{UPDATE [Table]
|
|
SET [Column] = [Expr $::ColumnList]
|
|
WHERE [Expr $::ColumnList]}
|
|
}
|
|
fuzz $TemplateList
|
|
}
|
|
|
|
proc Delete {} {
|
|
set TemplateList {
|
|
{DELETE FROM [Table] WHERE [Expr $::ColumnList]}
|
|
}
|
|
fuzz $TemplateList
|
|
}
|
|
|
|
proc Statement {} {
|
|
set TemplateList {
|
|
{[Update]}
|
|
{[Insert]}
|
|
{[Select]}
|
|
{[Delete]}
|
|
}
|
|
fuzz $TemplateList
|
|
}
|
|
|
|
# Return an identifier. This just chooses randomly from a fixed set
|
|
# of strings.
|
|
proc Identifier {} {
|
|
set TemplateList {
|
|
This just chooses randomly a fixed
|
|
We would also thank the developers
|
|
for their analysis Samba
|
|
}
|
|
fuzz $TemplateList
|
|
}
|
|
|
|
proc Check {} {
|
|
# Use a large value for $::SelectDepth, because sub-selects are
|
|
# not allowed in expressions used by CHECK constraints.
|
|
#
|
|
set sd $::SelectDepth
|
|
set ::SelectDepth 500
|
|
set TemplateList {
|
|
{}
|
|
{CHECK ([Expr])}
|
|
}
|
|
set res [fuzz $TemplateList]
|
|
set ::SelectDepth $sd
|
|
set res
|
|
}
|
|
|
|
proc Coltype {} {
|
|
set TemplateList {
|
|
{INTEGER PRIMARY KEY}
|
|
{VARCHAR [Check]}
|
|
{PRIMARY KEY}
|
|
}
|
|
fuzz $TemplateList
|
|
}
|
|
|
|
proc DropTable {} {
|
|
set TemplateList {
|
|
{DROP TABLE IF EXISTS [Identifier]}
|
|
}
|
|
fuzz $TemplateList
|
|
}
|
|
|
|
proc CreateView {} {
|
|
set TemplateList {
|
|
{CREATE VIEW [Identifier] AS [Select]}
|
|
}
|
|
fuzz $TemplateList
|
|
}
|
|
proc DropView {} {
|
|
set TemplateList {
|
|
{DROP VIEW IF EXISTS [Identifier]}
|
|
}
|
|
fuzz $TemplateList
|
|
}
|
|
|
|
proc CreateTable {} {
|
|
set TemplateList {
|
|
{CREATE TABLE [Identifier]([Identifier] [Coltype], [Identifier] [Coltype])}
|
|
{CREATE TEMP TABLE [Identifier]([Identifier] [Coltype])}
|
|
}
|
|
fuzz $TemplateList
|
|
}
|
|
|
|
proc CreateOrDropTableOrView {} {
|
|
set TemplateList {
|
|
{[CreateTable]}
|
|
{[DropTable]}
|
|
{[CreateView]}
|
|
{[DropView]}
|
|
}
|
|
fuzz $TemplateList
|
|
}
|
|
|
|
########################################################################
|
|
|
|
set ::log [open fuzzy.log w]
|
|
|
|
#
|
|
# Usage: do_fuzzy_test <testname> ?<options>?
|
|
#
|
|
# -template
|
|
# -errorlist
|
|
# -repeats
|
|
#
|
|
proc do_fuzzy_test {testname args} {
|
|
set ::fuzzyopts(-errorlist) [list]
|
|
set ::fuzzyopts(-repeats) $::REPEATS
|
|
array set ::fuzzyopts $args
|
|
|
|
lappend ::fuzzyopts(-errorlist) {parser stack overflow}
|
|
lappend ::fuzzyopts(-errorlist) {ORDER BY}
|
|
lappend ::fuzzyopts(-errorlist) {GROUP BY}
|
|
lappend ::fuzzyopts(-errorlist) {datatype mismatch}
|
|
lappend ::fuzzyopts(-errorlist) {non-deterministic functions prohibited}
|
|
|
|
for {set ii 0} {$ii < $::fuzzyopts(-repeats)} {incr ii} {
|
|
do_test ${testname}.$ii {
|
|
set ::sql [subst $::fuzzyopts(-template)]
|
|
puts $::log $::sql
|
|
flush $::log
|
|
set rc [catch {execsql $::sql} msg]
|
|
set e 1
|
|
if {$rc} {
|
|
set e 0
|
|
foreach error $::fuzzyopts(-errorlist) {
|
|
if {[string first $error $msg]>=0} {
|
|
set e 1
|
|
break
|
|
}
|
|
}
|
|
}
|
|
if {$e == 0} {
|
|
puts ""
|
|
puts $::sql
|
|
puts $msg
|
|
}
|
|
set e
|
|
} {1}
|
|
}
|
|
}
|