# Commands covered:  lseq
#
# 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 © 2003 Simon Geard.
#
# 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::*
}

testConstraint arithSeriesDouble 1
testConstraint arithSeriesShimmer 1
testConstraint arithSeriesShimmerOk 1
testConstraint has64BitLengths [expr {$tcl_platform(pointerSize) == 8}]
testConstraint has32BitLengths [expr {$tcl_platform(pointerSize) == 4}]

# Arg errors
test lseq-1.1 {error cases} -body {
    lseq
} \
    -returnCodes 1 \
    -result {wrong # args: should be "lseq n ??op? n ??by? n??"}


test lseq-1.2 {step magnitude} {
    lseq 10 .. 1 by -2 ;# or this could be an error - or not
} {10 8 6 4 2}

test lseq-1.3 {synergy between int and double} -body {
    set rl [lseq 25. to 5. by -5]
    set il [lseq 25  to 5  by -5]
    lmap r $rl i $il { if {$r ne "" && $i ne ""} {expr {int($r) == $i}} else {list $r $i} }
} -cleanup {
    unset rl il
} -result {1 1 1 1 1}

test lseq-1.4 {integer decreasing} {
    lseq 10 .. 1
} {10 9 8 7 6 5 4 3 2 1}

test lseq-1.5 {integer increasing} {
    lseq 1 .. 10
} {1 2 3 4 5 6 7 8 9 10}

test lseq-1.6 {integer decreasing with step} {
    lseq 10 .. 1 by -2
} {10 8 6 4 2}

test lseq-1.7 {real increasing lseq} arithSeriesDouble {
    lseq 5.0 to 15.
} {5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0}

test lseq-1.8 {real increasing lseq with step} arithSeriesDouble {
    lseq 5.0 to 25. by 5
} {5.0 10.0 15.0 20.0 25.0}

test lseq-1.9 {real decreasing with step} arithSeriesDouble {
    lseq 25. to 5. by -5
} {25.0 20.0 15.0 10.0 5.0}

# note, 10 cannot be in such a list, but allowed
test lseq-1.10 {integer lseq with step} {
    lseq 1 to 10 by 2
} {1 3 5 7 9}

test lseq-1.11 {error case: increasing wrong step direction} {
    lseq 1 to 10 by -2
} {}

test lseq-1.12 {decreasing lseq with step} arithSeriesDouble {
    lseq 25. to -25. by -5
} {25.0 20.0 15.0 10.0 5.0 0.0 -5.0 -10.0 -15.0 -20.0 -25.0}

test lseq-1.13 {count operation} {
    -body {
	lseq 5 count 5
    }
    -result {5 6 7 8 9}
}

test lseq-1.14 {count with step} {
    -body {
	lseq 5 count 5 by 2
    }
    -result {5 7 9 11 13}
}

test lseq-1.15 {count with decreasing step} {
    -body {
	lseq 5 count 5 by -2
    }
    -result {5 3 1 -1 -3}
}

test lseq-1.16 {large numbers} {
    -body {
	lseq [expr {int(1e6)}] [expr {int(2e6)}] [expr {int(1e5)}]
    }
    -result {1000000 1100000 1200000 1300000 1400000 1500000 1600000 1700000 1800000 1900000 2000000}
}

test lseq-1.17 {too many arguments} -body {
    lseq 12 to 24 by 2 with feeling
} -returnCodes 1 -result {wrong # args: should be "lseq n ??op? n ??by? n??"}

test lseq-1.18 {too many arguments extra valid keyword} -body {
    lseq 12 to 24 by 2 count
} -returnCodes 1 -result {wrong # args: should be "lseq n ??op? n ??by? n??"}

test lseq-1.19 {too many arguments extra numeric value} -body {
    lseq 12 to 24 by 2 7
} -returnCodes 1 -result {wrong # args: should be "lseq n ??op? n ??by? n??"}

test lseq-1.20 {bug: wrong length computed} {
    lseq 1 to 10 -1
} {}

test lseq-1.21 {n n by n} {
    lseq 66 84 by 3
} {66 69 72 75 78 81 84}

test lseq-1.22 {n n by -n} {
    lseq 84 66 by -3
} {84 81 78 75 72 69 66}

#
# Short-hand use cases
#
test lseq-2.2 {step magnitude} {
    lseq 10 1 2 ;# this is an empty case since step has wrong sign
} {}

test lseq-2.3 {step wrong sign} arithSeriesDouble {
    lseq 25. 5. 5 ;# ditto - empty list
} {}

test lseq-2.4 {integer decreasing} {
    lseq 10 1
} {10 9 8 7 6 5 4 3 2 1}

test lseq-2.5 {integer increasing} {
    lseq 1 10
} {1 2 3 4 5 6 7 8 9 10}

test lseq-2.6 {integer decreasing with step} {
    lseq 10 1 by -2
} {10 8 6 4 2}

test lseq-2.7 {real increasing lseq} arithSeriesDouble {
    lseq 5.0 15.
} {5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0}


test lseq-2.8 {real increasing lseq with step} arithSeriesDouble {
    lseq 5.0 25. 5
} {5.0 10.0 15.0 20.0 25.0}


test lseq-2.9 {real decreasing with step} arithSeriesDouble {
    lseq 25. 5. -5
} {25.0 20.0 15.0 10.0 5.0}

test lseq-2.10 {integer lseq with step} {
    lseq 1 10 2
} {1 3 5 7 9}

test lseq-2.11 {error case: increasing wrong step direction} {
    lseq 1 10 -2
} {}

test lseq-2.12 {decreasing lseq with step} arithSeriesDouble {
    lseq 25. -25. -5
} {25.0 20.0 15.0 10.0 5.0 0.0 -5.0 -10.0 -15.0 -20.0 -25.0}

test lseq-2.13 {count only operation} {
    lseq 5
} {0 1 2 3 4}

test lseq-2.14 {count with step} {
    lseq 5 count 5 2
} {5 7 9 11 13}

test lseq-2.15 {count with decreasing step} {
    lseq 5 count 5 -2
} {5 3 1 -1 -3}

test lseq-2.16 {large numbers} {
    lseq 1e6 2e6 1e5
} {1000000.0 1100000.0 1200000.0 1300000.0 1400000.0 1500000.0 1600000.0 1700000.0 1800000.0 1900000.0 2000000.0}

test lseq-2.17 {large numbers} arithSeriesDouble {
    lseq 1e6 2e6 1e5
} {1000000.0 1100000.0 1200000.0 1300000.0 1400000.0 1500000.0 1600000.0 1700000.0 1800000.0 1900000.0 2000000.0}

# Covered: {10 1 2 } {1 10 2} {1 10 -2} {1 1 1} {1 1 1} {-5 17 3}
# Missing: {- - +} {- - -} {- + -} {+ - -} {- - +} {+ + -}
test lseq-2.18 {signs} {
    list [lseq -10 -1 2] \
	[lseq -10 -1 -1] \
	[lseq -10 1 -3] \
	[lseq 10 -1 -4] \
	[lseq -10 -1 3] \
	[lseq 10 1 -5]

} {{-10 -8 -6 -4 -2} {} {} {10 6 2} {-10 -7 -4 -1} {10 5}}

test lseq-3.1 {experiement} -body {
    set ans {}
    foreach factor [lseq 2.0 10.0] {
	set start 1
	set end 10
	for {set step 1} {$step < 1e8} {} {
	    set l [lseq $start to $end by $step]
	    if {[llength $l] != 10} {
		lappend ans $factor $step [llength $l] $l
	    }
	    set step [expr {$step * $factor}]
	    set end [expr {$end * $factor}]
	}
    }
    if {$ans eq {}} {
	set ans OK
    }
    set ans
} -cleanup {
    unset ans step end start factor l
} -result {OK}

test lseq-3.2 {error case} -body {
    lseq foo
} -returnCodes 1 -result {bad operation "foo": must be .., to, count, or by}

test lseq-3.3 {error case} -body {
    lseq 10 foo
} -returnCodes 1 -result {bad operation "foo": must be .., to, count, or by}

test lseq-3.4 {error case} -body {
    lseq 25 or 6
} -returnCodes 1 -result {bad operation "or": must be .., to, count, or by}

test lseq-3.5 {simple count and step arguments} -body {
    set s [lseq 25 by 6]
    list $s length=[llength $s]
} -cleanup {
    unset s
} -result {{0 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120 126 132 138 144} length=25}

test lseq-3.6 {error case} -body {
    lseq 1 7 or 3
} -returnCodes 1  -result {bad operation "or": must be .., to, count, or by}

test lseq-3.7 {lmap lseq} -body {
    lmap x [lseq 5] { expr {$x * $x} }
} -cleanup {unset x} -result {0 1 4 9 16}

test lseq-3.8 {lrange lseq} -body {
    set r [lrange [lseq 1 100] 10 20]
    set empty [lrange [lseq 1 100] 20 10]
    list $r $empty [lindex [tcl::unsupported::representation $r] 3]
} -cleanup {
    unset r empty
} -result {{11 12 13 14 15 16 17 18 19 20 21} {} arithseries}

test lseq-3.9 {lassign lseq} -constraints arithSeriesShimmer -body {
    set r [lseq 15]
    set r2 [lassign $r a b]
    list [lindex [tcl::unsupported::representation $r] 3] $a $b \
	[lindex [tcl::unsupported::representation $r2] 3]
} -cleanup {unset r r2 a b} -result {arithseries 0 1 arithseries}

test lseq-3.10 {lsearch lseq must shimmer?} -constraints arithSeriesShimmer -body {
    set r [lseq 15 0]
    set a [lsearch $r 9]
    list [lindex [tcl::unsupported::representation $r] 3] $a
} -cleanup {unset r a} -result {arithseries 6}

test lseq-3.11 {lreverse lseq} -body {
    set r [lseq 15 0]
    set a [lreverse $r]
    join [list \
	      [lindex [tcl::unsupported::representation $r] 3] \
	      $r \
	      [lindex [tcl::unsupported::representation $a] 3] \
	      $a] \n
} -cleanup {unset r a} -result {arithseries
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
arithseries
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15}

test lseq-3.12 {in operator} -body {
    set r [lseq 9]
    set i [expr {7 in $r}]
    set j [expr {10 ni $r}]
    set k [expr {-1 in $r}]
    set l [expr {4 ni $r}]
    list $i $j $k $l [lindex [tcl::unsupported::representation $r] 3]
} -cleanup {
    unset r i j k l
} -result {1 1 0 0 arithseries}

test lseq-3.13 {lmap lseq shimmer} -constraints arithSeriesShimmer -body {
    set r [lseq 15]
    set rep-before [lindex [tcl::unsupported::representation $r] 3]
    set m [lmap i $r { expr {$i * 7} }]
    set rep-after [lindex [tcl::unsupported::representation $r] 3]
    set rep-m [lindex [tcl::unsupported::representation $m] 3]
    list $r ${rep-before} ${rep-after} ${rep-m} $m
} -cleanup {
    unset r rep-before m rep-after rep-m
} -result {{0 1 2 3 4 5 6 7 8 9 10 11 12 13 14} arithseries arithseries list {0 7 14 21 28 35 42 49 56 63 70 77 84 91 98}}

test lseq-3.14 {array for shimmer} -constraints arithSeriesShimmerOk -body {
    array set testarray {a Test for This great Function}
    set vars [lseq 2]
    set vars-rep [lindex [tcl::unsupported::representation $vars] 3]
    array for $vars testarray {
	lappend keys $0
	lappend vals $1
    }
    # Since hash order is not guaranteed, have to validate content ignoring order
    set valk [lmap k $keys {expr {$k in {a for great}}}]
    set valv [lmap v $vals {expr {$v in {Test This Function}}}]
    set vars-after [lindex [tcl::unsupported::representation $vars] 3]
    list ${vars-rep} $valk $valv ${vars-after}
} -cleanup {
    unset testarray vars vars-rep 0 valk k  valv v vars-after
} -result {arithseries {1 1 1} {1 1 1} arithseries}

test lseq-3.15 {join for shimmer} -constraints arithSeriesShimmer -body {
    set r [lseq 3]
    set rep-before [lindex [tcl::unsupported::representation $r] 3]
    set str [join $r :]
    set rep-after [lindex [tcl::unsupported::representation $r] 3]
    list ${rep-before} $str ${rep-after}
} -cleanup {
    unset r rep-before str rep-after
} -result {arithseries 0:1:2 arithseries}

test lseq-3.16 {error case} -body {
    lseq 16 to
} -returnCodes 1 -result {missing "to" value.}

test lseq-3.17 {error case} -body {
    lseq 17 to 13 by
} -returnCodes 1 -result {missing "by" value.}

test lseq-3.18 {error case} -body {
    lseq 18 count
} -returnCodes 1 -result {missing "count" value.}

test lseq-3.19 {edge case} -body {
    lseq 1 count 5 by 0
} -result {}
# 1 1 1 1 1

# My thought is that this is likely a user error, since they can always use lrepeat for this.

test lseq-3.20 {edge case} -body {
    lseq 1 to 1 by 0
} -result {}

# hmmm, I guess this is right, in a way, so...

test lseq-3.21 {edge case} {
    lseq 1 to 1 by 1
} {1}

test lseq-3.22 {edge case} {
    lseq 1 1 1
} {1}

test lseq-3.23 {edge case} {
    llength [lseq 1 1 1]
} {1}

test lseq-3.24 {edge case} {
    llength [lseq 1 to 1 1]
} {1}

test lseq-3.25 {edge case} {
    llength [lseq 1 to 1 by 1]
} {1}

test lseq-3.26 {lsort shimmer} -constraints arithSeriesShimmer -body {
    set r [lseq 15 0]
    set rep-before [lindex [tcl::unsupported::representation $r] 3]
    set lexical_sort [lsort $r]
    set rep-after [lindex [tcl::unsupported::representation $r] 3]
    list ${rep-before} $lexical_sort ${rep-after}
} -cleanup {
    unset r rep-before lexical_sort rep-after
} -result {arithseries {0 1 10 11 12 13 14 15 2 3 4 5 6 7 8 9} arithseries}

test lseq-3.27 {lreplace shimmer} -constraints arithSeriesShimmer -body {
    set r [lseq 15 0]
    set rep-before [lindex [tcl::unsupported::representation $r] 3]
    set lexical_sort [lreplace $r 3 5 A B C]
    set rep-after [lindex [tcl::unsupported::representation $r] 3]
    list ${rep-before} $lexical_sort ${rep-after}
} -cleanup {
    unset r
    unset rep-before
    unset lexical_sort
    unset rep-after
} -result {arithseries {15 14 13 A B C 9 8 7 6 5 4 3 2 1 0} arithseries}

test lseq-3.28 {lreverse bug in ArithSeries} -body {
    set r [lseq -5 17 3]
    set rr [lreverse $r]
    list $r $rr [string equal $r [lreverse $rr]]
} -cleanup {
    unset r rr
} -result {{-5 -2 1 4 7 10 13 16} {16 13 10 7 4 1 -2 -5} 1}

test lseq-3.29 {edge case: negative count} {
    lseq -15
} {}

test lseq-3.30 {lreverse with double values} -constraints arithSeriesDouble -body {
    set r [lseq 3.5 18.5 1.5]
    set a [lreverse $r]
    join [list \
	      [lindex [tcl::unsupported::representation $r] 3] \
	      $r \
	      [lindex [tcl::unsupported::representation $a] 3] \
	      $a] \n
} -cleanup {
    unset r a
} -result {arithseries
3.5 5.0 6.5 8.0 9.5 11.0 12.5 14.0 15.5 17.0 18.5
arithseries
18.5 17.0 15.5 14.0 12.5 11.0 9.5 8.0 6.5 5.0 3.5}

test lseq-3.31 {lreverse inplace with doubles} {arithSeriesDouble} {
    lreverse [lseq 1.1 29.9 0.3]
} {29.9 29.6 29.3 29.0 28.7 28.4 28.1 27.8 27.5 27.2 26.9 26.6 26.3 26.0 25.7 25.4 25.1 24.8 24.5 24.2 23.9 23.6 23.3 23.0 22.7 22.4 22.1 21.8 21.5 21.2 20.9 20.6 20.3 20.0 19.7 19.4 19.1 18.8 18.5 18.2 17.9 17.6 17.3 17.0 16.7 16.4 16.1 15.8 15.5 15.2 14.9 14.6 14.3 14.0 13.7 13.4 13.1 12.8 12.5 12.2 11.9 11.6 11.3 11.0 10.7 10.4 10.1 9.8 9.5 9.2 8.9 8.6 8.3 8.0 7.7 7.4 7.1 6.8 6.5 6.2 5.9 5.6 5.3 5.0 4.7 4.4 4.1 3.8 3.5 3.2 2.9 2.6 2.3 2.0 1.7 1.4 1.1}

# lsearch -
#  -- should not shimmer lseq  list
#  -- should not leak lseq elements
test lseq-3.32 {lsearch nested lists of lseq} -constraints arithSeriesShimmer -body {
    set srchlist {}
    for {set i 5} {$i < 25} {incr i} {
	lappend srchlist [lseq $i count 7 by 3]
    }
    set a [lsearch -all -inline -index 1 $srchlist 23]
    set b [lmap i $a {lindex [tcl::unsupported::representation $i] 3}]
    list [lindex [tcl::unsupported::representation $a] 3] $a $b \
        [lindex [tcl::unsupported::representation [lindex $srchlist 15]] 3]
} -cleanup {
    unset srchlist i a b
} -result {list {{20 23 26 29 32 35 38}} arithseries arithseries}

test lseq-4.1 {end expressions} -body {
    set start 7
    lseq $start $start+11
} -cleanup {unset start} -result {7 8 9 10 11 12 13 14 15 16 17 18}

test lseq-4.2 {start expressions} -body {
    set base [clock seconds]
    set tl [lseq $base-60 $base 10]
    lmap t $tl {expr {$t - $base + 60}}
} -cleanup {unset base tl t} -result {0 10 20 30 40 50 60}

##	lseq 1 to 10 by -2
##	# -> lseq: invalid step = -2 with a = 1 and b = 10

test lseq-4.3 {TIP examples} -body {
    set examples {# Examples from TIP-629
	# --- Begin ---
	lseq 10 .. 1
	# -> 10 9 8 7 6 5 4 3 2 1
	lseq 1 .. 10
	# -> 1 2 3 4 5 6 7 8 9 10
	lseq 10 .. 1 by 2
	# ->
	lseq 10 .. 1 by -2
	# -> 10 8 6 4 2
	lseq 5.0 to 15.
	# -> 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0
	lseq 5.0 to 25. by 5
	# -> 5.0 10.0 15.0 20.0 25.0
	lseq 25. to 5. by 5
	# ->
	lseq 25. to 5. by -5
	# -> 25.0 20.0 15.0 10.0 5.0
	lseq 1 to 10 by 2
	# -> 1 3 5 7 9
	lseq 25. to -25. by -5
	# -> 25.0 20.0 15.0 10.0 5.0 0.0 -5.0 -10.0 -15.0 -20.0 -25.0
	lseq 5 5
	# -> 5
	lseq 5 5 2
	# -> 5
	lseq 5 5 -2
	# -> 5
    }
    set res {}
    foreach {cmd expect} [split $examples \n] {
	if {[string trim $cmd] ne ""} {
	    set cmd [string trimleft $cmd]
	    if {[string match {\#*} $cmd]} continue
	    set status [catch $cmd ans]
	    lappend res $ans
	    if {[regexp {\# -> (.*)$} $expect -> expected]} {
		if {$expected ne $ans} {
		    lappend res [list Mismatch: $cmd -> $ans ne $expected]
		}
	    }
	}
    }
    set res
} -cleanup {
    unset res cmd status ans expect expected examples
} -result {{10 9 8 7 6 5 4 3 2 1} {1 2 3 4 5 6 7 8 9 10} {} {10 8 6 4 2} {5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0} {5.0 10.0 15.0 20.0 25.0} {} {25.0 20.0 15.0 10.0 5.0} {1 3 5 7 9} {25.0 20.0 15.0 10.0 5.0 0.0 -5.0 -10.0 -15.0 -20.0 -25.0} 5 5 5}

#
# Ticket 9933cc4d88697f05976accebd31c1e3ba6efe9c6 - lseq corner case
test lseq-4.4 {lseq corner case} -constraints has64BitLengths -body {
    set tcmd {
	set res {}
	set s [catch {lindex [lseq 10 100] 0} e]
	lappend res $s $e
	set s [catch {lindex [lseq 10 9223372036854775000] 0} e]
	lappend res $s $e
	set s [catch {llength [lseq 10 9223372036854775000]} e]
	lappend res $s $e
	set s [catch {lindex [lseq 10 2147483647] 0} e]
	lappend res $s $e
	set s [catch {llength [lseq 10 2147483647]} e]
	lappend res $s $e
    }
    eval $tcmd
} -cleanup {
    unset res s e tcmd
} -result {0 10 0 10 0 9223372036854774991 0 10 0 2147483638}

test lseq-4.4.32 {lseq corner case} -constraints has32BitLengths -body {
    set tcmd {
	set res {}
	set s [catch {lindex [lseq 10 100] 0} e]
	lappend res $s $e
	set s [catch {lindex [lseq 10 9223372036854775000] 0} e]
	lappend res $s $e
	set s [catch {llength [lseq 10 9223372036854775000]} e]
	lappend res $s $e
	set s [catch {lindex [lseq 10 2147483647] 0} e]
	lappend res $s $e
	set s [catch {llength [lseq 10 2147483647]} e]
	lappend res $s $e
    }
    eval $tcmd
} -cleanup {
    unset res s e tcmd
} -result {0 10 1 {max length of a Tcl list exceeded} 1 {max length of a Tcl list exceeded} 0 10 0 2147483638}

# Ticket 99e834bf33 - lseq, lindex end off by one

test lseq-4.5 {lindex off by one} -body {
    lappend res [eval {lindex [lseq 1 4] end}]
    lappend res [eval {lindex [lseq 1 4] end-1}]
} -setup {
    # Since 4.3 does not clean up and 4.4 may not run under constraint
    set res {}
} -cleanup {
    unset res
} -result {4 3}

# Bad refcount on ResultObj
test lseq-4.6 {lindex flat} -body {
    set l [lseq 2 10]
    set cmd lindex
    set i 4
    set c [lindex $l $i]
    set d [$cmd $l $i]
    set e [lindex [lseq 2 10] $i]
    set f [$cmd [lseq 2 10] $i]
    list $c $d $e $f
} -cleanup {
    unset l cmd i c d e f
} -result [lrepeat 4 6]

test lseq-4.7 {empty list} {
    list [lseq 0] [join [lseq 0] {}] [join [lseq 1] {}]
} {{} {} 0}

test lseq-4.8 {error case lrange} -body {
    lrange [lseq 1 5] fred ginger
} -cleanup {
    unset -nocomplain fred ginger
} -returnCodes 1 -result {bad index "fred": must be integer?[+-]integer? or end?[+-]integer?}

test lseq-4.9 {lrange empty/partial sets} -body {
    set res {}
    foreach {fred ginger} {7 8 4 9 0 15 9 9 4 2} {
        lappend res [lrange [lseq 1 5] $fred $ginger]
    }
    set res
} -cleanup {unset res fred ginger} -result {{} 5 {1 2 3 4 5} {} {}}

# Panic when using variable value?
test lseq-4.10 {panic using variable index} -body {
    set i 0
    lindex [lseq 10] $i
} -cleanup {unset i} -result {0}

test lseq-4.11 {bug lseq / lindex discrepancies} -body {
    lindex [lseq 0x7fffffff] 0x80000000
} -result {}

test lseq-4.12 {bug lseq} -constraints has64BitLengths -body {
    llength [lseq 0x100000000]
} -result {4294967296}

test lseq-4.12.32 {bug lseq} -constraints has32BitLengths -body {
    llength [lseq 0x100000000]
} -returnCodes 1 -result {max length of a Tcl list exceeded}

test lseq-4.13 {bug lseq} -constraints knownBug -body {
    set l [lseq 0x7fffffffffffffff]
    list \
    [llength $l] \
    [lindex $l end] \
        [lindex $l 9223372036854775800]
} -cleanup {unset l} -result {9223372036854775807 9223372036854775806 9223372036854775800}


test lseq-4.14 {bug lseq - inconsistent rounding} {
    # using a non-integer increment, [lseq] rounding seems to be not consistent:
    lseq 4 40 0.1
} {4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 7.0 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 8.0 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9 9.0 9.1 9.2 9.3 9.4 9.5 9.6 9.7 9.8 9.9 10.0 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 10.9 11.0 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9 12.0 12.1 12.2 12.3 12.4 12.5 12.6 12.7 12.8 12.9 13.0 13.1 13.2 13.3 13.4 13.5 13.6 13.7 13.8 13.9 14.0 14.1 14.2 14.3 14.4 14.5 14.6 14.7 14.8 14.9 15.0 15.1 15.2 15.3 15.4 15.5 15.6 15.7 15.8 15.9 16.0 16.1 16.2 16.3 16.4 16.5 16.6 16.7 16.8 16.9 17.0 17.1 17.2 17.3 17.4 17.5 17.6 17.7 17.8 17.9 18.0 18.1 18.2 18.3 18.4 18.5 18.6 18.7 18.8 18.9 19.0 19.1 19.2 19.3 19.4 19.5 19.6 19.7 19.8 19.9 20.0 20.1 20.2 20.3 20.4 20.5 20.6 20.7 20.8 20.9 21.0 21.1 21.2 21.3 21.4 21.5 21.6 21.7 21.8 21.9 22.0 22.1 22.2 22.3 22.4 22.5 22.6 22.7 22.8 22.9 23.0 23.1 23.2 23.3 23.4 23.5 23.6 23.7 23.8 23.9 24.0 24.1 24.2 24.3 24.4 24.5 24.6 24.7 24.8 24.9 25.0 25.1 25.2 25.3 25.4 25.5 25.6 25.7 25.8 25.9 26.0 26.1 26.2 26.3 26.4 26.5 26.6 26.7 26.8 26.9 27.0 27.1 27.2 27.3 27.4 27.5 27.6 27.7 27.8 27.9 28.0 28.1 28.2 28.3 28.4 28.5 28.6 28.7 28.8 28.9 29.0 29.1 29.2 29.3 29.4 29.5 29.6 29.7 29.8 29.9 30.0 30.1 30.2 30.3 30.4 30.5 30.6 30.7 30.8 30.9 31.0 31.1 31.2 31.3 31.4 31.5 31.6 31.7 31.8 31.9 32.0 32.1 32.2 32.3 32.4 32.5 32.6 32.7 32.8 32.9 33.0 33.1 33.2 33.3 33.4 33.5 33.6 33.7 33.8 33.9 34.0 34.1 34.2 34.3 34.4 34.5 34.6 34.7 34.8 34.9 35.0 35.1 35.2 35.3 35.4 35.5 35.6 35.7 35.8 35.9 36.0 36.1 36.2 36.3 36.4 36.5 36.6 36.7 36.8 36.9 37.0 37.1 37.2 37.3 37.4 37.5 37.6 37.7 37.8 37.9 38.0 38.1 38.2 38.3 38.4 38.5 38.6 38.7 38.8 38.9 39.0 39.1 39.2 39.3 39.4 39.5 39.6 39.7 39.8 39.9 40.0}

test lseq-4.15 {bug lseq - inconsistent rounding} {
    # using a non-integer increment, [lseq] rounding seems to be not consistent:
    lseq 6 40 0.1
} {6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 7.0 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 8.0 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9 9.0 9.1 9.2 9.3 9.4 9.5 9.6 9.7 9.8 9.9 10.0 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 10.9 11.0 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9 12.0 12.1 12.2 12.3 12.4 12.5 12.6 12.7 12.8 12.9 13.0 13.1 13.2 13.3 13.4 13.5 13.6 13.7 13.8 13.9 14.0 14.1 14.2 14.3 14.4 14.5 14.6 14.7 14.8 14.9 15.0 15.1 15.2 15.3 15.4 15.5 15.6 15.7 15.8 15.9 16.0 16.1 16.2 16.3 16.4 16.5 16.6 16.7 16.8 16.9 17.0 17.1 17.2 17.3 17.4 17.5 17.6 17.7 17.8 17.9 18.0 18.1 18.2 18.3 18.4 18.5 18.6 18.7 18.8 18.9 19.0 19.1 19.2 19.3 19.4 19.5 19.6 19.7 19.8 19.9 20.0 20.1 20.2 20.3 20.4 20.5 20.6 20.7 20.8 20.9 21.0 21.1 21.2 21.3 21.4 21.5 21.6 21.7 21.8 21.9 22.0 22.1 22.2 22.3 22.4 22.5 22.6 22.7 22.8 22.9 23.0 23.1 23.2 23.3 23.4 23.5 23.6 23.7 23.8 23.9 24.0 24.1 24.2 24.3 24.4 24.5 24.6 24.7 24.8 24.9 25.0 25.1 25.2 25.3 25.4 25.5 25.6 25.7 25.8 25.9 26.0 26.1 26.2 26.3 26.4 26.5 26.6 26.7 26.8 26.9 27.0 27.1 27.2 27.3 27.4 27.5 27.6 27.7 27.8 27.9 28.0 28.1 28.2 28.3 28.4 28.5 28.6 28.7 28.8 28.9 29.0 29.1 29.2 29.3 29.4 29.5 29.6 29.7 29.8 29.9 30.0 30.1 30.2 30.3 30.4 30.5 30.6 30.7 30.8 30.9 31.0 31.1 31.2 31.3 31.4 31.5 31.6 31.7 31.8 31.9 32.0 32.1 32.2 32.3 32.4 32.5 32.6 32.7 32.8 32.9 33.0 33.1 33.2 33.3 33.4 33.5 33.6 33.7 33.8 33.9 34.0 34.1 34.2 34.3 34.4 34.5 34.6 34.7 34.8 34.9 35.0 35.1 35.2 35.3 35.4 35.5 35.6 35.7 35.8 35.9 36.0 36.1 36.2 36.3 36.4 36.5 36.6 36.7 36.8 36.9 37.0 37.1 37.2 37.3 37.4 37.5 37.6 37.7 37.8 37.9 38.0 38.1 38.2 38.3 38.4 38.5 38.6 38.7 38.8 38.9 39.0 39.1 39.2 39.3 39.4 39.5 39.6 39.7 39.8 39.9 40.0}

test lseq-4.16 {bug lseq - inconsistent rounding} {
    # using a non-integer increment, [lseq] rounding seems to be not consistent:
    set res {}
    lappend res [lseq 4.07 6 0.1]
    lappend res [lseq 4.03 4.208 0.013]
} {{4.07 4.17 4.27 4.37 4.47 4.57 4.67 4.77 4.87 4.97 5.07 5.17 5.27 5.37 5.47 5.57 5.67 5.77 5.87 5.97} {4.03 4.043 4.056 4.069 4.082 4.095 4.108 4.121 4.134 4.147 4.16 4.173 4.186 4.199}}

# Test abstract list in a concat
#  -- lseq list should not shimmer
#  -- lseq elements should not leak
test lseq-4.17 {concat shimmer} -body {
    set rng [lseq 8 15 2]
    set pre [list A b C]
    set pst [list x Y z]
    list [concat $pre $rng $pst] \
         [lindex [tcl::unsupported::representation $pre] 3] \
         [lindex [tcl::unsupported::representation $rng] 3] \
         [lindex [tcl::unsupported::representation $pst] 3]
} -cleanup {unset rng pre pst} -result  {{A b C 8 10 12 14 x Y z} list arithseries list}

test lseq-4.18 {concat shimmer} -body {
    set rng [lseq 8 15 2]
    set pre [list A b C]
    set pst [list x Y z]
    list [concat $rng $pre $pst] \
         [lindex [tcl::unsupported::representation $rng] 3] \
         [lindex [tcl::unsupported::representation $pre] 3] \
         [lindex [tcl::unsupported::representation $pst] 3]
} -cleanup {unset rng pre pst} -result {{8 10 12 14 A b C x Y z} arithseries list list}

# Test lseq elements as var names
test lseq-4.19 {varnames} -body {
    set plist {}
    foreach v {auto_execok auto_load auto_qualify} {
	lappend plist proc $v [info args $v] [info body $v]
    }
    set res {}
    set varlist [lseq 1 to 4]
    foreach $varlist $plist {
	lappend res $2 [llength $3]
    }
    lappend res [lindex [tcl::unsupported::representation $varlist] 3]
} -cleanup {
    unset {*}$varlist res varlist v plist
} -result {auto_execok 1 auto_load 2 auto_qualify 2 arithseries}

test lseq-convertToList {does not result in a memory error} -body {
	trace add variable var1 write [list ::apply [list args {
		error {this is an error}
	} [namespace current]]]
	list [catch {set var1 [lindex [lreplace [lseq 1 2] 1 1 hello] 0]} cres] $cres
} -cleanup {unset var1 cres} -result {1 {can't set "var1": this is an error}}

# cleanup
::tcltest::cleanupTests

return

# Local Variables:
# mode: tcl
# End: