# This file contains tests for the files tclCompile.c, tclCompCmds.c
# and tclLiteral.c
#
# This file contains a collection of tests for one or more of the Tcl
# built-in commands. Sourcing this file into Tcl runs the tests and
# generates output for errors. No output means no errors were found.
#
# Copyright (c) 1997 by Sun Microsystems, Inc.
# Copyright (c) 1998-1999 by Scriptics Corporation.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# RCS: @(#) $Id: compile.test,v 1.48.2.2 2009/10/29 17:21:18 dgp Exp $
package require tcltest 2
namespace import -force ::tcltest::*
testConstraint exec [llength [info commands exec]]
testConstraint memory [llength [info commands memory]]
testConstraint testevalex [llength [info commands testevalex]]
# The following tests are very incomplete, although the rest of the
# test suite covers this file fairly well.
catch {rename p ""}
catch {namespace delete test_ns_compile}
catch {unset x}
catch {unset y}
catch {unset a}
test compile-1.1 {TclCompileString: look up cmds in proc ns, not current ns} {
catch {namespace delete test_ns_compile}
catch {unset x}
set x 123
namespace eval test_ns_compile {
proc set {args} {
global x
lappend x test_ns_compile::set
}
proc p {} {
set 0
}
}
list [test_ns_compile::p] [set x]
} {{123 test_ns_compile::set} {123 test_ns_compile::set}}
test compile-1.2 {TclCompileString, error result is reset if TclGetLong determines word isn't an integer} {
proc p {x} {info commands 3m}
list [catch {p} msg] $msg
} {1 {wrong # args: should be "p x"}}
test compile-2.1 {TclCompileDollarVar: global scalar name with ::s} {
catch {unset x}
set x 123
list $::x [expr {[lsearch -exact [info globals] x] != 0}]
} {123 1}
test compile-2.2 {TclCompileDollarVar: global scalar name with ::s} {
catch {unset y}
proc p {} {
set ::y 789
return $::y
}
list [p] $::y [expr {[lsearch -exact [info globals] y] != 0}]
} {789 789 1}
test compile-2.3 {TclCompileDollarVar: global array name with ::s} {
catch {unset a}
set ::a(1) 2
list $::a(1) [set ::a($::a(1)) 3] $::a(2) [expr {[lsearch -exact [info globals] a] != 0}]
} {2 3 3 1}
test compile-2.4 {TclCompileDollarVar: global scalar name with ::s} {
catch {unset a}
proc p {} {
set ::a(1) 1
return $::a($::a(1))
}
list [p] $::a(1) [expr {[lsearch -exact [info globals] a] != 0}]
} {1 1 1}
test compile-2.5 {TclCompileDollarVar: global array, called as ${arrName(0)}} {
catch {unset a}
proc p {} {
global a
set a(1) 1
return ${a(1)}$::a(1)$a(1)
}
list [p] $::a(1) [expr {[lsearch -exact [info globals] a] != 0}]
} {111 1 1}
test compile-3.1 {TclCompileCatchCmd: only catch cmds with scalar vars are compiled inline} {
catch {unset a}
set a(1) xyzzyx
proc p {} {
global a
catch {set x 123} a(1)
}
list [p] $a(1)
} {0 123}
test compile-3.2 {TclCompileCatchCmd: non-local variables} {
set ::foo 1
proc catch-test {} {
catch {set x 3} ::foo
}
catch-test
set ::foo
} 3
test compile-3.3 {TclCompileCatchCmd: overagressive compiling [bug 219184]} {
proc catch-test {str} {
catch [eval $str GOOD]
error BAD
}
catch {catch-test error} ::foo
set ::foo
} {GOOD}
test compile-3.4 {TclCompileCatchCmd: bcc'ed [return] is caught} {
proc foo {} {
set fail [catch {
return 1
}] ; # {}
return 2
}
foo
} {2}
test compile-3.5 {TclCompileCatchCmd: recover from error, [Bug 705406]} {
proc foo {} {
catch {
if {[a]} {
if b {}
}
}
}
list [catch foo msg] $msg
} {0 1}
test compile-4.1 {TclCompileForCmd: command substituted test expression} {
set i 0
set j 0
# Should be "forever"
for {} [expr $i < 3] {} {
set j [incr i]
if {$j > 3} break
}
set j
} {4}
test compile-5.1 {TclCompileForeachCmd: exception stack} {
proc foreach-exception-test {} {
foreach array(index) [list 1 2 3] break
foreach array(index) [list 1 2 3] break
foreach scalar [list 1 2 3] break
}
list [catch foreach-exception-test result] $result
} {0 {}}
test compile-5.2 {TclCompileForeachCmd: non-local variables} {
set ::foo 1
proc foreach-test {} {
foreach ::foo {1 2 3} {}
}
foreach-test
set ::foo
} 3
test compile-6.1 {TclCompileSetCmd: global scalar names with ::s} {
catch {unset x}
catch {unset y}
set x 123
proc p {} {
set ::y 789
return $::y
}
list $::x [expr {[lsearch -exact [info globals] x] != 0}] \
[p] $::y [expr {[lsearch -exact [info globals] y] != 0}]
} {123 1 789 789 1}
test compile-6.2 {TclCompileSetCmd: global array names with ::s} {
catch {unset a}
set ::a(1) 2
proc p {} {
set ::a(1) 1
return $::a($::a(1))
}
list $::a(1) [p] [set ::a($::a(1)) 3] $::a(1) [expr {[lsearch -exact [info globals] a] != 0}]
} {2 1 3 3 1}
test compile-6.3 {TclCompileSetCmd: namespace var names with ::s} {
catch {namespace delete test_ns_compile}
catch {unset x}
namespace eval test_ns_compile {
variable v hello
variable arr
set ::x $::test_ns_compile::v
set ::test_ns_compile::arr(1) 123
}
list $::x $::test_ns_compile::arr(1)
} {hello 123}
test compile-7.1 {TclCompileWhileCmd: command substituted test expression} {
set i 0
set j 0
# Should be "forever"
while [expr $i < 3] {
set j [incr i]
if {$j > 3} break
}
set j
} {4}
test compile-8.1 {CollectArgInfo: binary data} {
list [catch "string length \000foo" msg] $msg
} {0 4}
test compile-8.2 {CollectArgInfo: binary data} {
list [catch "string length foo\000" msg] $msg
} {0 4}
test compile-8.3 {CollectArgInfo: handle "]" at end of command properly} {
set x ]
} {]}
test compile-9.1 {UpdateStringOfByteCode: called for duplicate of compiled empty object} {
proc p {} {
set x {}
eval $x
append x { }
eval $x
}
p
} {}
test compile-10.1 {BLACKBOX: exception stack overflow} {
set x {{0}}
set y 0
while {$y < 100} {
if !$x {incr y}
}
} {}
test compile-11.1 {Tcl_Append*: ensure Tcl_ResetResult is used properly} {
proc p {} {
# shared object - Interp result && Var 'r'
set r [list foobar]
# command that will add error to result
lindex a bogus
}
list [catch {p} msg] $msg
} {1 {bad index "bogus": must be integer?[+-]integer? or end?[+-]integer?}}
test compile-11.2 {Tcl_Append*: ensure Tcl_ResetResult is used properly} {
proc p {} { set r [list foobar] ; string index a bogus }
list [catch {p} msg] $msg
} {1 {bad index "bogus": must be integer?[+-]integer? or end?[+-]integer?}}
test compile-11.3 {Tcl_Append*: ensure Tcl_ResetResult is used properly} -body {
proc p {} { set r [list foobar] ; string index a 0o9 }
list [catch {p} msg] $msg
} -match glob -result {1 {*invalid octal number*}}
test compile-11.4 {Tcl_Append*: ensure Tcl_ResetResult is used properly} {
proc p {} { set r [list foobar] ; array set var {one two many} }
list [catch {p} msg] $msg
} {1 {list must have an even number of elements}}
test compile-11.5 {Tcl_Append*: ensure Tcl_ResetResult is used properly} {
proc p {} { set r [list foobar] ; incr foo bar baz}
list [catch {p} msg] $msg
} {1 {wrong # args: should be "incr varName ?increment?"}}
test compile-11.6 {Tcl_Append*: ensure Tcl_ResetResult is used properly} {
proc p {} { set r [list foobar] ; incr}
list [catch {p} msg] $msg
} {1 {wrong # args: should be "incr varName ?increment?"}}
test compile-11.7 {Tcl_Append*: ensure Tcl_ResetResult is used properly} -body {
proc p {} { set r [list foobar] ; expr !a }
p
} -returnCodes error -match glob -result *
test compile-11.8 {Tcl_Append*: ensure Tcl_ResetResult is used properly} -body {
proc p {} { set r [list foobar] ; expr {!a} }
p
} -returnCodes error -match glob -result *
test compile-11.9 {Tcl_Append*: ensure Tcl_ResetResult is used properly} {
proc p {} { set r [list foobar] ; llength "\{" }
list [catch {p} msg] $msg
} {1 {unmatched open brace in list}}
#
# Special section for tests of tclLiteral.c
# The following tests check for incorrect memory handling in
# TclReleaseLiteral. They are only effective when tcl is compiled
# with TCL_MEM_DEBUG
#
# Special test for leak on interp delete [Bug 467523].
test compile-12.1 {testing literal leak on interp delete} -setup {
proc getbytes {} {
set lines [split [memory info] "\n"]
lindex $lines 3 3
}
} -constraints memory -body {
set end [getbytes]
for {set i 0} {$i < 5} {incr i} {
interp create foo
foo eval {
namespace eval bar {}
}
interp delete foo
set tmp $end
set end [getbytes]
}
set leakedBytes [expr {$end - $tmp}]
} -cleanup {
rename getbytes {}
unset -nocomplain end i tmp leakedBytes
} -result 0
# Special test for a memory error in a preliminary fix of [Bug 467523].
# It requires executing a helpfile. Presumably the child process is
# used because when this test fails, it crashes.
test compile-12.2 {testing error on literal deletion} -constraints {memory exec} -body {
set sourceFile [makeFile {
for {set i 0} {$i < 5} {incr i} {
namespace eval bar {}
namespace delete bar
}
puts 0
} source.file]
exec [interpreter] $sourceFile
} -cleanup {
catch {removeFile $sourceFile}
} -result 0
# Test to catch buffer overrun in TclCompileTokens from buf 530320
test compile-12.3 {check for a buffer overrun} -body {
proc crash {} {
puts $array([expr {a+2}])
}
crash
} -returnCodes error -cleanup {
rename crash {}
} -match glob -result *
test compile-12.4 {TclCleanupLiteralTable segfault} -body {
# Tcl Bug 1001997
# Here, we're trying to test a case that causes a crash in
# TclCleanupLiteralTable. The conditions that we're trying to
# establish are:
# - TclCleanupLiteralTable is attempting to clean up a bytecode
# object in the literal table.
# - The bytecode object in question contains the only reference
# to another literal.
# - The literal in question is in the same hash bucket as the bytecode
# object, and immediately follows it in the chain.
# Since newly registered literals are added at the FRONT of the
# bucket chains, and since the bytecode object is registered before
# its literals, this is difficult to achieve. What we do is:
# (a) do a [namespace eval] of a string that's calculated to
# hash into the same bucket as a literal that it contains.
# In this case, the script and the variable 'bugbug'
# land in the same bucket.
# (b) do a [namespace eval] of a string that contains enough
# literals to force TclRegisterLiteral to rebuild the global
# literal table. The newly created hash buckets will contain
# the literals, IN REVERSE ORDER, thus putting the bytecode
# immediately ahead of 'bugbug' and 'bug4345bug'. The bytecode
# object will contain the only references to those two literals.
# (c) Delete the interpreter to invoke TclCleanupLiteralTable
# and tickle the bug.
proc foo {} {
set i [interp create]
$i eval {
namespace eval ::w {concat 4649; variable bugbug}
namespace eval ::w {
concat x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 \
x11 x12 x13 x14 x15 x16 x17 x18 x19 x20 \
x21 x22 x23 x24 x25 x26 x27 x28 x29 x30 \
x31 x32 X33 X34 X35 X36 X37 X38 X39 X40 \
x41 x42 x43 x44 x45 x46 x47 x48 x49 x50 \
x51 x52 x53 x54 x55 x56 x57 x58 x59 x60 \
x61 x62 x63 x64
concat y1 y2 y3 y4 y5 y6 y7 y8 y9 y10 \
y11 y12 y13 y14 y15 y16 y17 y18 y19 y20 \
y21 y22 y23 y24 y25 y26 y27 y28 y29 y30 \
y31 y32 Y33 Y34 Y35 Y36 Y37 Y38 Y39 Y40 \
y41 y42 y43 y44 y45 y46 y47 y48 y49 y50 \
y51 y52 y53 y54 y55 y56 y57 y58 y59 y60 \
y61 y62 y63 y64
concat z1 z2 z3 z4 z5 z6 z7 z8 z9 z10 \
z11 z12 z13 z14 z15 z16 z17 z18 z19 z20 \
z21 z22 z23 z24 z25 z26 z27 z28 z29 z30 \
z31 z32
}
}
interp delete $i; # must not crash
return ok
}
foo
} -cleanup {
rename foo {}
} -result ok
# Special test for underestimating the maxStackSize required for a
# compiled command. A failure will cause a segfault in the child
# process.
test compile-13.1 {testing underestimate of maxStackSize in list cmd} {exec} {
set body {set x [list}
for {set i 0} {$i < 3000} {incr i} {
append body " $i"
}
append body {]; puts OK}
regsub BODY {proc crash {} {BODY}; crash} $body script
list [catch {exec [interpreter] << $script} msg] $msg
} {0 OK}
# Special test for compiling tokens from a copy of the source
# string [Bug #599788]
test compile-14.1 {testing errors in element name; segfault?} {} {
catch {set a([error])} msg1
catch {set bubba([join $abba $jubba]) $vol} msg2
list $msg1 $msg2
} {{wrong # args: should be "error message ?errorInfo? ?errorCode?"} {can't read "abba": no such variable}}
# Tests compile-15.* cover Tcl Bug 633204
test compile-15.1 {proper TCL_RETURN code from [return]} {
proc p {} {catch return}
set result [p]
rename p {}
set result
} 2
test compile-15.2 {proper TCL_RETURN code from [return]} {
proc p {} {catch {return foo}}
set result [p]
rename p {}
set result
} 2
test compile-15.3 {proper TCL_RETURN code from [return]} {
proc p {} {catch {return $::tcl_library}}
set result [p]
rename p {}
set result
} 2
test compile-15.4 {proper TCL_RETURN code from [return]} {
proc p {} {catch {return [info library]}}
set result [p]
rename p {}
set result
} 2
test compile-15.5 {proper TCL_RETURN code from [return]} {
proc p {} {catch {set a 1}; return}
set result [p]
rename p {}
set result
} ""
for {set noComp 0} {$noComp <= 1} {incr noComp} {
if $noComp {
interp alias {} run {} testevalex
set constraints testevalex
} else {
interp alias {} run {} if 1
set constraints {}
}
test compile-16.1.$noComp {TclCompileScript: word expansion} $constraints {
run "list [string repeat {{*}a } 255]"
} [lrepeat 255 a]
test compile-16.2.$noComp {TclCompileScript: word expansion} $constraints {
run "list [string repeat {{*}a } 256]"
} [lrepeat 256 a]
test compile-16.3.$noComp {TclCompileScript: word expansion} $constraints {
run "list [string repeat {{*}a } 257]"
} [lrepeat 257 a]
test compile-16.4.$noComp {TclCompileScript: word expansion} $constraints {
run {{*}list}
} {}
test compile-16.5.$noComp {TclCompileScript: word expansion} $constraints {
run {{*}list {*}{x y z}}
} {x y z}
test compile-16.6.$noComp {TclCompileScript: word expansion} $constraints {
run {{*}list {*}[list x y z]}
} {x y z}
test compile-16.7.$noComp {TclCompileScript: word expansion} $constraints {
run {{*}list {*}[list x y z][list x y z]}
} {x y zx y z}
test compile-16.8.$noComp {TclCompileScript: word expansion} -body {
set l {x y z}
run {{*}list {*}$l}
} -constraints $constraints -cleanup {
unset l
} -result {x y z}
test compile-16.9.$noComp {TclCompileScript: word expansion} -body {
set l {x y z}
run {{*}list {*}$l$l}
} -constraints $constraints -cleanup {
unset l
} -result {x y zx y z}
test compile-16.10.$noComp {TclCompileScript: word expansion} -body {
run {{*}\{}
} -constraints $constraints -returnCodes error \
-result {unmatched open brace in list}
test compile-16.11.$noComp {TclCompileScript: word expansion} -body {
proc badList {} {return \{}
run {{*}[badList]}
} -constraints $constraints -cleanup {
rename badList {}
} -returnCodes error -result {unmatched open brace in list}
test compile-16.12.$noComp {TclCompileScript: word expansion} $constraints {
run {{*}list x y z}
} {x y z}
test compile-16.13.$noComp {TclCompileScript: word expansion} $constraints {
run {{*}list x y {*}z}
} {x y z}
test compile-16.14.$noComp {TclCompileScript: word expansion} $constraints {
run {{*}list x {*}y z}
} {x y z}
test compile-16.15.$noComp {TclCompileScript: word expansion} $constraints {
run {list x y {*}z}
} {x y z}
test compile-16.16.$noComp {TclCompileScript: word expansion} $constraints {
run {list x {*}y z}
} {x y z}
test compile-16.17.$noComp {TclCompileScript: word expansion} $constraints {
run {list {*}x y z}
} {x y z}
# These tests note that expansion can in theory cause the number of
# arguments to a command to exceed INT_MAX, which is as big as objc
# is allowed to get.
#
# In practice, it seems we will run out of memory before we confront
# this issue. Note that compiled operations run out of memory at
# smaller objc values than direct string evaluation.
#
# These tests are constrained as knownBug because they are likely
# to cause memory allocation panics somewhere, and we don't want
# panics in the test suite.
#
test compile-16.18.$noComp {TclCompileScript: word expansion} -body {
proc LongList {} {return [lrepeat [expr {1<<10}] x]}
llength [run "list [string repeat {{*}[LongList] } [expr {1<<10}]]"]
} -constraints [linsert $constraints 0 knownBug] -cleanup {
rename LongList {}
} -returnCodes ok -result [expr {1<<20}]
test compile-16.19.$noComp {TclCompileScript: word expansion} -body {
proc LongList {} {return [lrepeat [expr {1<<11}] x]}
llength [run "list [string repeat {{*}[LongList] } [expr {1<<11}]]"]
} -constraints [linsert $constraints 0 knownBug] -cleanup {
rename LongList {}
} -returnCodes ok -result [expr {1<<22}]
test compile-16.20.$noComp {TclCompileScript: word expansion} -body {
proc LongList {} {return [lrepeat [expr {1<<12}] x]}
llength [run "list [string repeat {{*}[LongList] } [expr {1<<12}]]"]
} -constraints [linsert $constraints 0 knownBug] -cleanup {
rename LongList {}
} -returnCodes ok -result [expr {1<<24}]
# This is the one that should cause overflow
test compile-16.21.$noComp {TclCompileScript: word expansion} -body {
proc LongList {} {return [lrepeat [expr {1<<16}] x]}
llength [run "list [string repeat {{*}[LongList] } [expr {1<<16}]]"]
} -constraints [linsert $constraints 0 knownBug] -cleanup {
rename LongList {}
} -returnCodes ok -result [expr {wide(1)<<32}]
test compile-16.22.$noComp {
Bug 845412: TclCompileScript: word expansion not mandatory
} -body {
# This test may crash and will fail unless Bug 845412 is fixed.
proc ReturnResults args {return $args}
run "ReturnResults [string repeat {x } 260]"
} -constraints $constraints -cleanup {
rename ReturnResults {}
} -returnCodes ok -result [string trim [string repeat {x } 260]]
test compile-16.23.$noComp {
Bug 1032805: defer parse error until run time
} -constraints $constraints -body {
namespace eval x {
run {
proc if {a b} {uplevel 1 [list set $a $b]}
if 1 {syntax {}{}}
}
}
} -cleanup {
namespace delete x
} -returnCodes ok -result {syntax {}{}}
test compile-16.24.$noComp {
Bug 1638414: bad list constant as first expanded term
} -constraints $constraints -body {
run "{*}\"\{foo bar\""
} -returnCodes error -result {unmatched open brace in list}
} ;# End of noComp loop
# These tests are messy because it wrecks the interpreter it runs in!
# They demonstrate issues arising from [FRQ 1101710]
test compile-17.1 {Command interpretation binding for compiled code} -constraints knownBug -setup {
set i [interp create]
} -body {
$i eval {
if 1 {
expr [
proc expr args {return substituted}
format {[subst compiled]}
]
}
}
} -cleanup {
interp delete $i
} -result substituted
test compile-17.2 {Command interpretation binding for non-compiled code} -setup {
set i [interp create]
} -body {
$i eval {
if 1 {
[subst expr] [
proc expr args {return substituted}
format {[subst compiled]}
]
}
}
} -cleanup {
interp delete $i
} -result substituted
# cleanup
catch {rename p ""}
catch {namespace delete test_ns_compile}
catch {unset x}
catch {unset y}
catch {unset a}
::tcltest::cleanupTests
return
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