# Commands covered:  list
#
# 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 © 1991-1993 The Regents of the University of California.
# Copyright © 1994 Sun Microsystems, Inc.
# Copyright © 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.

if {"::tcltest" ni [namespace children]} {
    package require tcltest 2.5
    namespace import -force ::tcltest::*
}

# First, a bunch of individual tests

test list-1.1 {basic tests} {list a b c} {a b c}
test list-1.2 {basic tests} {list {a b} c} {{a b} c}
test list-1.3 {basic tests} {list \{a b c} {\{a b c}
test list-1.4 {basic tests} "list a{}} b{} c}" "a\\{\\}\\} b{} c\\}"
test list-1.5 {basic tests} {list a\[ b\] } "{a\[} b\\]"
test list-1.6 {basic tests} {list c\  d\t } "{c } {d\t}"
test list-1.7 {basic tests} {list e\n f\$ } "{e\n} {f\$}"
test list-1.8 {basic tests} {list g\; h\\} {{g;} h\\}
test list-1.9 {basic tests} "list a\\\[} b\\\]} " "a\\\[\\\} b\\\]\\\}"
test list-1.10 {basic tests} "list c\\\} d\\t} " "c\\} d\\t\\}"
test list-1.11 {basic tests} "list e\\n} f\\$} " "e\\n\\} f\\$\\}"
test list-1.12 {basic tests} "list g\\;} h\\\\} " "g\\;\\} {h\\}}"
test list-1.13 {basic tests} {list a {{}} b} {a {{}} b}
test list-1.14 {basic tests} {list a b xy\\} "a b xy\\\\"
test list-1.15 {basic tests} "list a b\} e\\" "a b\\} e\\\\"
test list-1.16 {basic tests} "list a b\}\\\$ e\\\$\\" "a b\\}\\\$ e\\\$\\\\"
test list-1.17 {basic tests} {list a\f \{\f} "{a\f} \\\{\\f"
test list-1.18 {basic tests} {list a\r \{\r} "{a\r} \\\{\\r"
test list-1.19 {basic tests} {list a\v \{\v} "{a\v} \\\{\\v"
test list-1.20 {basic tests} {list \"\}\{} "\\\"\\}\\{"
test list-1.21 {basic tests} {list a b c\\\nd} "a b c\\\\\\nd"
test list-1.22 {basic tests} {list "{ab}\\"} \\{ab\\}\\\\
test list-1.23 {basic tests} {list \{} "\\{"
test list-1.24 {basic tests} {list} {}
test list-1.25 {basic tests} {list # #} {{#} #}
test list-1.26 {basic tests} {list #\{ #\{} {\#\{ #\{}
test list-1.27 {basic null treatment} {
    set l [list "" "\0" "\0\0"]
    set e "{} \0 \0\0"
    string equal $l $e
} 1
test list-1.28 {basic null treatment} {
    set result "\0a\0b"
    list $result [string length $result]
} "\0a\0b 4"
test list-1.29 {basic null treatment} {
    set result "\0a\0b"
    set srep "$result 4"
    set lrep [list $result [string length $result]]
    string equal $srep $lrep
} 1
test list-1.30 {basic null treatment} {
    set l [list "\0abc" "xyz"]
    set e "\0abc xyz"
    string equal $l $e
} 1

# For the next round of tests create a list and then pick it apart
# with "index" to make sure that we get back exactly what went in.

set num 0
proc lcheck {testid a b c} {
    global num d
    set d [list $a $b $c]
    test ${testid}-0 {what goes in must come out} {lindex $d 0} $a
    test ${testid}-1 {what goes in must come out} {lindex $d 1} $b
    test ${testid}-2 {what goes in must come out} {lindex $d 2} $c
}
lcheck list-2.1  a b c
lcheck list-2.2  "a b" c\td e\nf
lcheck list-2.3  {{a b}} {} {  }
lcheck list-2.4  \$ \$ab ab\$
lcheck list-2.5  \; \;ab ab\;
lcheck list-2.6  \[ \[ab ab\[
lcheck list-2.7  \\ \\ab ab\\
lcheck list-2.8  {"} {"ab} {ab"}	;#" Stupid emacs highlighting!
lcheck list-2.9  {a b} { ab} {ab }
lcheck list-2.10 a{ a{b \{ab
lcheck list-2.11 a} a}b }ab
lcheck list-2.12 a\\} {a \}b} {a \{c}
lcheck list-2.13 xyz \\ 1\\\n2
lcheck list-2.14 "{ab}\\" "{ab}xy" abc

concat {}

# Check that tclListObj.c's SetListFromAny handles possible overlarge
# string rep lengths in the source object.

proc slowsort list {
    set result {}
    set last [expr {[llength $list] - 1}]
    while {$last > 0} {
	set minIndex [expr {[llength $list] - 1}]
	set min [lindex $list $last]
	set i [expr {$minIndex - 1}]
	while {$i >= 0} {
	    if {[string compare [lindex $list $i] $min] < 0} {
		set minIndex $i
		set min [lindex $list $i]
	    }
	    incr i -1
	}
	set result [concat $result [list $min]]
	if {$minIndex == 0} {
	    set list [lrange $list 1 end]
	} else {
	    set list [concat [lrange $list 0 [expr {$minIndex - 1}]] \
			  [lrange $list [expr {$minIndex + 1}] end]]
	}
	set last [expr {$last - 1}]
    }
    return [concat $result $list]
}
test list-3.1 {SetListFromAny and lrange/concat results} {
    slowsort {fred julie alex carol bill annie}
} {alex annie bill carol fred julie}

test list-4.1 {Bug 3173086} {
    string is list "{[list \\\\\}]}"
} 1
test list-4.2 {Bug 35a8f1c04a, check correct str-rep} {
    set result {}
    foreach i {
	{#"} {#"""} {#"""""""""""""""}
	"#\"{" "#\"\"\"{" "#\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\{"
	"#\"}" "#\"\"\"}" "#\"\"\"\"\"\"\"\"\"\"\"\"\"\"\"\}"
    } {
	set list [list $i]
	set list [string trim " $list "]
	if {[llength $list] > 1 || $i ne [lindex $list 0]} {
	    lappend result "wrong string-representation of list by '$i', length: [llength $list], list: '$list'"
	}
    }
    set result [join $result \n]
} {}
test list-4.3 {Bug 35a8f1c04a, check correct string length} {
    string length [list #""]
} 5

# cleanup
::tcltest::cleanupTests
return