# 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 1991 Regents of the University of California
# Permission to use, copy, modify, and distribute this
# software and its documentation for any purpose and without
# fee is hereby granted, provided that this copyright notice
# appears in all copies.  The University of California makes no
# representations about the suitability of this software for any
# purpose.  It is provided "as is" without express or implied
# warranty.
#
# $Header: /a/cvs/386BSD/ports/tcl/tests/append.test,v 1.1.1.1 1993/08/09 10:57:42 alm Exp $ (Berkeley)

if {[string compare test [info procs test]] == 1} then {source defs}

catch {unset x}
test append-1.1 {append command} {
    catch {unset x}
    list [append x 1 2 abc "long string"] $x
} {{12abclong string} {12abclong string}}
test append-1.2 {append command} {
    set x ""
    list [append x first] [append x second] [append x third] $x
} {first firstsecond firstsecondthird firstsecondthird}

test append-2.1 {long appends} {
    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}
} 1

test append-3.1 {append errors} {
    list [catch {append} msg] $msg
} {1 {wrong # args: should be "append varName value ?value ...?"}}
test append-3.2 {append errors} {
    list [catch {append x} msg] $msg
} {1 {wrong # args: should be "append varName value ?value ...?"}}
test append-3.3 {append errors} {
    set x ""
    list [catch {append x(0) 44} msg] $msg
} {1 {can't set "x(0)": variable isn't array}}

test append-4.1 {lappend command} {
    catch {unset x}
    list [lappend x 1 2 abc "long string"] $x
} {{1 2 abc {long string}} {1 2 abc {long string}}}
test append-4.2 {lappend command} {
    set x ""
    list [lappend x first] [lappend x second] [lappend x third] $x
} {first {first second} {first second third} {first second third}}
test append-4.3 {lappend command} {
    proc foo {} {
	global x
	set x old
	unset x
	lappend x new
    }
    set result [foo]
    rename foo {}
    set result
} {new}


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 append-5.1 {long lappends} {
    set x ""
    for {set i 0} {$i < 300} {set i [expr $i+1]} {
	lappend x "item $i"
    }
    check $x 300
} ok

test append-6.1 {lappend errors} {
    list [catch {lappend} msg] $msg
} {1 {wrong # args: should be "lappend varName value ?value ...?"}}
test append-6.2 {lappend errors} {
    list [catch {lappend x} msg] $msg
} {1 {wrong # args: should be "lappend varName value ?value ...?"}}
test append-6.3 {lappend errors} {
    set x ""
    list [catch {lappend x(0) 44} msg] $msg
} {1 {can't set "x(0)": variable isn't array}}