# Commands covered: append lappend
#
# 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) 1991-1993 The Regents of the University of California.
# Copyright (c) 1994-1996 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: @(#) appendComp.test,v 1.3 2003/01/21 19:40:13 hunt Exp
if {[lsearch [namespace children] ::tcltest] == -1} {
package require tcltest
namespace import -force ::tcltest::*
}
catch {unset x}
test appendComp-1.1 {append command} {
catch {unset x}
proc foo {} {append ::x 1 2 abc "long string"}
list [foo] $x
} {{12abclong string} {12abclong string}}
test appendComp-1.2 {append command} {
proc foo {} {
set x ""
list [append x first] [append x second] [append x third] $x
}
foo
} {first firstsecond firstsecondthird firstsecondthird}
test appendComp-1.3 {append command} {
proc foo {} {
set x "abcd"
append x
}
foo
} abcd
test appendComp-2.1 {long appends} {
proc foo {} {
set x ""
for {set i 0} {$i < 1000} {set i [expr $i+1]} {
append x "foobar "
}
set y "foobar"
set y "$y $y $y $y $y $y $y $y $y $y"
set y "$y $y $y $y $y $y $y $y $y $y"
set y "$y $y $y $y $y $y $y $y $y $y "
expr {$x == $y}
}
foo
} 1
test appendComp-3.1 {append errors} {
proc foo {} {append}
list [catch {foo} msg] $msg
} {1 {wrong # args: should be "append varName ?value value ...?"}}
test appendComp-3.2 {append errors} {
proc foo {} {
set x ""
append x(0) 44
}
list [catch {foo} msg] $msg
} {1 {can't set "x(0)": variable isn't array}}
test appendComp-3.3 {append errors} {
proc foo {} {
catch {unset x}
append x
}
list [catch {foo} msg] $msg
} {1 {can't read "x": no such variable}}
test appendComp-4.1 {lappend command} {
proc foo {} {
global x
catch {unset x}
lappend x 1 2 abc "long string"
}
list [foo] $x
} {{1 2 abc {long string}} {1 2 abc {long string}}}
test appendComp-4.2 {lappend command} {
proc foo {} {
set x ""
list [lappend x first] [lappend x second] [lappend x third] $x
}
foo
} {first {first second} {first second third} {first second third}}
test appendComp-4.3 {lappend command} {
proc foo {} {
global x
set x old
unset x
lappend x new
}
set result [foo]
rename foo {}
set result
} {new}
test appendComp-4.4 {lappend command} {
proc foo {} {
set x {}
lappend x \{\ abc
}
foo
} {\{\ abc}
test appendComp-4.5 {lappend command} {
proc foo {} {
set x {}
lappend x \{ abc
}
foo
} {\{ abc}
test appendComp-4.6 {lappend command} {
proc foo {} {
set x {1 2 3}
lappend x
}
foo
} {1 2 3}
test appendComp-4.7 {lappend command} {
proc foo {} {
set x "a\{"
lappend x abc
}
foo
} "a\\\{ abc"
test appendComp-4.8 {lappend command} {
proc foo {} {
set x "\\\{"
lappend x abc
}
foo
} "\\{ abc"
test appendComp-4.9 {lappend command} {
proc foo {} {
set x " \{"
list [catch {lappend x abc} msg] $msg
}
foo
} {1 {unmatched open brace in list}}
test appendComp-4.10 {lappend command} {
proc foo {} {
set x " \{"
list [catch {lappend x abc} msg] $msg
}
foo
} {1 {unmatched open brace in list}}
test appendComp-4.11 {lappend command} {
proc foo {} {
set x "\{\{\{"
list [catch {lappend x abc} msg] $msg
}
foo
} {1 {unmatched open brace in list}}
test appendComp-4.12 {lappend command} {
proc foo {} {
set x "x \{\{\{"
list [catch {lappend x abc} msg] $msg
}
foo
} {1 {unmatched open brace in list}}
test appendComp-4.13 {lappend command} {
proc foo {} {
set x "x\{\{\{"
lappend x abc
}
foo
} "x\\\{\\\{\\\{ abc"
test appendComp-4.14 {lappend command} {
proc foo {} {
set x " "
lappend x abc
}
foo
} "abc"
test appendComp-4.15 {lappend command} {
proc foo {} {
set x "\\ "
lappend x abc
}
foo
} "{ } abc"
test appendComp-4.16 {lappend command} {
proc foo {} {
set x "x "
lappend x abc
}
foo
} "x abc"
test appendComp-4.17 {lappend command} {
proc foo {} { lappend x }
foo
} {}
test appendComp-4.18 {lappend command} {
proc foo {} { lappend x {} }
foo
} {{}}
test append-4.19 {lappend command} {
proc foo {} { lappend x(0) }
foo
} {}
test append-4.20 {lappend command} {
proc foo {} { lappend x(0) abc }
foo
} {abc}
proc check {var size} {
set l [llength $var]
if {$l != $size} {
return "length mismatch: should have been $size, was $l"
}
for {set i 0} {$i < $size} {set i [expr $i+1]} {
set j [lindex $var $i]
if {$j != "item $i"} {
return "element $i should have been \"item $i\", was \"$j\""
}
}
return ok
}
test appendComp-5.1 {long lappends} {
catch {unset x}
set x ""
for {set i 0} {$i < 300} {set i [expr $i+1]} {
lappend x "item $i"
}
check $x 300
} ok
test appendComp-6.1 {lappend errors} {
proc foo {} {lappend}
list [catch {foo} msg] $msg
} {1 {wrong # args: should be "lappend varName ?value value ...?"}}
test appendComp-6.2 {lappend errors} {
proc foo {} {
set x ""
lappend x(0) 44
}
list [catch {foo} msg] $msg
} {1 {can't set "x(0)": variable isn't array}}
test appendComp-7.1 {lappendComp-created var and error in trace on that var} {
proc bar {} {
global x
catch {rename foo ""}
catch {unset x}
trace variable x w foo
proc foo {} {global x; unset x}
catch {lappend x 1}
proc foo {args} {global x; unset x}
info exists x
set x
lappend x 1
list [info exists x] [catch {set x} msg] $msg
}
bar
} {0 1 {can't read "x": no such variable}}
test appendComp-7.2 {lappend var triggers read trace, index var} {
proc bar {} {
catch {unset myvar}
catch {unset ::result}
trace variable myvar r foo
proc foo {args} {append ::result $args}
lappend myvar a
list [catch {set ::result} msg] $msg
}
bar
} {0 {myvar {} r}}
test appendComp-7.3 {lappend var triggers read trace, stack var} {
proc bar {} {
catch {unset ::myvar}
catch {unset ::result}
trace variable ::myvar r foo
proc foo {args} {append ::result $args}
lappend ::myvar a
list [catch {set ::result} msg] $msg
}
bar
} {0 {::myvar {} r}}
test appendComp-7.4 {lappend var triggers read trace, array var} {
# The behavior of read triggers on lappend changed in 8.0 to
# not trigger them. Maybe not correct, but been there a while.
proc bar {} {
catch {unset myvar}
catch {unset ::result}
trace variable myvar r foo
proc foo {args} {append ::result $args}
lappend myvar(b) a
list [catch {set ::result} msg] $msg
}
bar
} {0 {myvar b r}}
test appendComp-7.5 {lappend var triggers read trace, array var} {
# The behavior of read triggers on lappend changed in 8.0 to
# not trigger them. Maybe not correct, but been there a while.
proc bar {} {
catch {unset myvar}
catch {unset ::result}
trace variable myvar r foo
proc foo {args} {append ::result $args}
lappend myvar(b) a b
list [catch {set ::result} msg] $msg
}
bar
} {0 {myvar b r}}
test appendComp-7.6 {lappend var triggers read trace, array var exists} {
proc bar {} {
catch {unset myvar}
catch {unset ::result}
set myvar(0) 1
trace variable myvar r foo
proc foo {args} {append ::result $args}
lappend myvar(b) a
list [catch {set ::result} msg] $msg
}
bar
} {0 {myvar b r}}
test appendComp-7.7 {lappend var triggers read trace, array stack var} {
proc bar {} {
catch {unset ::myvar}
catch {unset ::result}
trace variable ::myvar r foo
proc foo {args} {append ::result $args}
lappend ::myvar(b) a
list [catch {set ::result} msg] $msg
}
bar
} {0 {::myvar b r}}
test appendComp-7.8 {lappend var triggers read trace, array stack var} {
proc bar {} {
catch {unset ::myvar}
catch {unset ::result}
trace variable ::myvar r foo
proc foo {args} {append ::result $args}
lappend ::myvar(b) a b
list [catch {set ::result} msg] $msg
}
bar
} {0 {::myvar b r}}
test appendComp-7.9 {append var does not trigger read trace} {
proc bar {} {
catch {unset myvar}
catch {unset ::result}
trace variable myvar r foo
proc foo {args} {append ::result $args}
append myvar a
info exists ::result
}
bar
} {0}
catch {unset i x result y}
catch {rename foo ""}
catch {rename bar ""}
catch {rename check ""}
catch {rename bar {}}
# cleanup
::tcltest::cleanupTests
return