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# This file contains a collection of tests for the procedures in the file
# tclCmdIL.c. Sourcing this file into Tcl runs the tests and generates output
# for errors. No output means no errors were found.
#
# Copyright (c) 1997 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.

if {[lsearch [namespace children] ::tcltest] == -1} {
    package require tcltest 2
    namespace import -force ::tcltest::*
}

::tcltest::loadTestedCommands
catch [list package require -exact Tcltest [info patchlevel]]

# Used for constraining memory leak tests
testConstraint memory [llength [info commands memory]]
testConstraint testobj [llength [info commands testobj]]

test cmdIL-1.1 {Tcl_LsortObjCmd procedure} -returnCodes error -body {
    lsort
} -result {wrong # args: should be "lsort ?-option value ...? list"}
test cmdIL-1.2 {Tcl_LsortObjCmd procedure} -returnCodes error -body {
    lsort -foo {1 3 2 5}
} -result {bad option "-foo": must be -ascii, -command, -decreasing, -dictionary, -increasing, -index, -indices, -integer, -nocase, -real, -stride, or -unique}
test cmdIL-1.3 {Tcl_LsortObjCmd procedure, default options} {
    lsort {d e c b a \{ d35 d300}
} {a b c d d300 d35 e \{}
test cmdIL-1.4 {Tcl_LsortObjCmd procedure, -ascii option} {
    lsort -integer -ascii {d e c b a d35 d300}
} {a b c d d300 d35 e}
test cmdIL-1.5 {Tcl_LsortObjCmd procedure, -command option} -body {
    lsort -command {1 3 2 5}
} -returnCodes error -result {"-command" option must be followed by comparison command}
test cmdIL-1.6 {Tcl_LsortObjCmd procedure, -command option} -setup {
    proc cmp {a b} {
	expr {[string match x* $b] - [string match x* $a]}
    }
} -body {
    lsort -command cmp {x1 abc x2 def x3 x4}
} -result {x1 x2 x3 x4 abc def} -cleanup {
    rename cmp ""
}
test cmdIL-1.7 {Tcl_LsortObjCmd procedure, -decreasing option} {
    lsort -decreasing {d e c b a d35 d300}
} {e d35 d300 d c b a}
test cmdIL-1.8 {Tcl_LsortObjCmd procedure, -dictionary option} {
    lsort -dictionary {d e c b a d35 d300}
} {a b c d d35 d300 e}
test cmdIL-1.9 {Tcl_LsortObjCmd procedure, -dictionary option} {
    lsort -dictionary {1k 0k 10k}
} {0k 1k 10k}
test cmdIL-1.10 {Tcl_LsortObjCmd procedure, -increasing option} {
    lsort -decreasing -increasing {d e c b a d35 d300}
} {a b c d d300 d35 e}
test cmdIL-1.11 {Tcl_LsortObjCmd procedure, -index option} -body {
    lsort -index {1 3 2 5}
} -returnCodes error -result {"-index" option must be followed by list index}
test cmdIL-1.12 {Tcl_LsortObjCmd procedure, -index option} -body {
    lsort -index foo {1 3 2 5}
} -returnCodes error -result {bad index "foo": must be integer?[+-]integer? or end?[+-]integer?}
test cmdIL-1.13 {Tcl_LsortObjCmd procedure, -index option} {
    lsort -index end -integer {{2 25} {10 20 50 100} {3 16 42} 1}
} {1 {2 25} {3 16 42} {10 20 50 100}}
test cmdIL-1.14 {Tcl_LsortObjCmd procedure, -index option} {
    lsort -index 1 -integer {{1 25 100} {3 16 42} {10 20 50}}
} {{3 16 42} {10 20 50} {1 25 100}}
test cmdIL-1.15 {Tcl_LsortObjCmd procedure, -integer option} {
    lsort -integer {24 6 300 18}
} {6 18 24 300}
test cmdIL-1.16 {Tcl_LsortObjCmd procedure, -integer option} -body {
    lsort -integer {1 3 2.4}
} -returnCodes error -result {expected integer but got "2.4"}
test cmdIL-1.17 {Tcl_LsortObjCmd procedure, -real option} {
    lsort -real {24.2 6e3 150e-1}
} {150e-1 24.2 6e3}
test cmdIL-1.18 {Tcl_LsortObjCmd procedure, bogus list} -body {
    lsort "1 2 3 \{ 4"
} -returnCodes error -result {unmatched open brace in list}
test cmdIL-1.19 {Tcl_LsortObjCmd procedure, empty list} {
    lsort {}
} {}
test cmdIL-1.22 {Tcl_LsortObjCmd procedure, unique sort} {
    lsort -integer -unique {3 1 2 3 1 4 3}
} {1 2 3 4}
test cmdIL-1.23 {Tcl_LsortObjCmd procedure, unique sort with index} {
    # lsort -unique should return the last unique item
    lsort -unique -index 0 {{a b} {c b} {a c} {d a}}
} {{a c} {c b} {d a}}
test cmdIL-1.24 {Tcl_LsortObjCmd procedure, order of -index and -command} -setup {
    catch {rename 1 ""}
    proc testcmp {a b} {return [string compare $a $b]}
} -body {
    set l [list [list a b] [list c d]]
    lsort -command testcmp -index 1 $l
} -cleanup {
    rename testcmp ""
} -result [list [list a b] [list c d]]
test cmdIL-1.25 {Tcl_LsortObjCmd procedure, order of -index and -command} -setup {
    catch {rename 1 ""}
    proc testcmp {a b} {return [string compare $a $b]}
} -body {
    set l [list [list a b] [list c d]]
    lsort -index 1 -command testcmp $l
} -cleanup {
    rename testcmp ""
} -result [list [list a b] [list c d]]
# Note that the required order only exists in the end-1'th element; indexing
# using the end element or any fixed offset from the start will not work...
test cmdIL-1.26 {Tcl_LsortObjCmd procedure, offset indexing from end} {
    lsort -index end-1 {{a 1 e i} {b 2 3 f g} {c 4 5 6 d h}}
} {{c 4 5 6 d h} {a 1 e i} {b 2 3 f g}}
test cmdIL-1.27 {Tcl_LsortObjCmd procedure, returning indices} {
    lsort -indices {a c b}
} {0 2 1}
test cmdIL-1.28 {Tcl_LsortObjCmd procedure, returning indices} {
    lsort -indices -unique -decreasing -real {1.2 34.5 34.5 5.6}
} {2 3 0}
test cmdIL-1.29 {Tcl_LsortObjCmd procedure, loss of list rep during sorting} {
    set l {1 2 3}
    string length [lsort -command {apply {args {string length $::l}}} $l]
} 5
test cmdIL-1.30 {Tcl_LsortObjCmd procedure, -stride option} {
    lsort -stride 2 {f e d c b a}
} {b a d c f e}
test cmdIL-1.31 {Tcl_LsortObjCmd procedure, -stride option} {
    lsort -stride 3 {f e d c b a}
} {c b a f e d}
test cmdIL-1.32 {lsort -stride errors} -returnCodes error -body {
    lsort -stride foo bar
} -result {expected integer but got "foo"}
test cmdIL-1.33 {lsort -stride errors} -returnCodes error -body {
    lsort -stride 1 bar
} -result {stride length must be at least 2}
test cmdIL-1.34 {lsort -stride errors} -returnCodes error -body {
    lsort -stride 2 {a b c}
} -result {list size must be a multiple of the stride length}
test cmdIL-1.35 {lsort -stride errors} -returnCodes error -body {
    lsort -stride 2 -index 3 {a b c d}
} -result {when used with "-stride", the leading "-index" value must be within the group}
test cmdIL-1.36 {lsort -stride and -index: Bug 2918962} {
    lsort -stride 2 -index {0 1} {
	{{c o d e} 54321} {{b l a h} 94729}
	{{b i g} 12345} {{d e m o} 34512}
    }
} {{{b i g} 12345} {{d e m o} 34512} {{c o d e} 54321} {{b l a h} 94729}}

# Can't think of any good tests for the MergeSort and MergeLists procedures,
# except a bunch of random lists to sort.

test cmdIL-2.1 {MergeSort and MergeLists procedures} -setup {
    set result {}
    set r 1435753299
    proc rand {} {
	global r
	set r [expr {(16807 * $r) % (0x7fffffff)}]
    }
} -body {
    for {set i 0} {$i < 150} {incr i} {
	set x {}
	for {set j 0} {$j < $i} {incr j} {
	    lappend x [expr {[rand] & 0xfff}]
	}
	set y [lsort -integer $x]
	set old -1
	foreach el $y {
	    if {$el < $old} {
		append result "list {$x} sorted to {$y}, element $el out of order\n"
		break
	    }
	    set old $el
	}
    }
    string trim $result
} -cleanup {
    rename rand ""
} -result {}

test cmdIL-3.1 {SortCompare procedure, skip comparisons after error} -body {
    set ::x 0
    list [catch {
	lsort -integer -command {apply {{a b} {
	    incr ::x
	    error "error #$::x"
	}}} {48 6 28 190 16 2 3 6 1}
    } msg] $msg $::x
} -result {1 {error #1} 1}
test cmdIL-3.2 {SortCompare procedure, -index option} -body {
    lsort -integer -index 2 "\\\{ {30 40 50}"
} -returnCodes error -result {unmatched open brace in list}
test cmdIL-3.3 {SortCompare procedure, -index option} -body {
    lsort -integer -index 2 {{20 10} {15 30 40}}
} -returnCodes error -result {element 2 missing from sublist "20 10"}
test cmdIL-3.4 {SortCompare procedure, -index option} -body {
    lsort -integer -index 2 "{a b c} \\\{"
} -returnCodes error -result {expected integer but got "c"}
test cmdIL-3.4.1 {SortCompare procedure, -index option} -body {
    lsort -integer -index 2 "{1 2 3} \\\{"
} -returnCodes error -result {unmatched open brace in list}
test cmdIL-3.5 {SortCompare procedure, -index option} -body {
    lsort -integer -index 2 {{20 10 13} {15}}
} -returnCodes error -result {element 2 missing from sublist "15"}
test cmdIL-3.6 {SortCompare procedure, -index option} {
    lsort -integer -index 2 {{1 15 30} {2 5 25} {3 25 20}}
} {{3 25 20} {2 5 25} {1 15 30}}
test cmdIL-3.7 {SortCompare procedure, -ascii option} {
    lsort -ascii {d e c b a d35 d300 100 20}
} {100 20 a b c d d300 d35 e}
test cmdIL-3.8 {SortCompare procedure, -dictionary option} {
    lsort -dictionary {d e c b a d35 d300 100 20}
} {20 100 a b c d d35 d300 e}
test cmdIL-3.9 {SortCompare procedure, -integer option} -body {
    lsort -integer {x 3}
} -returnCodes error -result {expected integer but got "x"}
test cmdIL-3.10 {SortCompare procedure, -integer option} -body {
    lsort -integer {3 q}
} -returnCodes error -result {expected integer but got "q"}
test cmdIL-3.11 {SortCompare procedure, -integer option} {
    lsort -integer {35 21 0x20 30 0o23 100 8}
} {8 0o23 21 30 0x20 35 100}
test cmdIL-3.12 {SortCompare procedure, -real option} -body {
    lsort -real {6...4 3}
} -returnCodes error -result {expected floating-point number but got "6...4"}
test cmdIL-3.13 {SortCompare procedure, -real option} -body {
    lsort -real {3 1x7}
} -returnCodes error -result {expected floating-point number but got "1x7"}
test cmdIL-3.14 {SortCompare procedure, -real option} {
    lsort -real {24 2.5e01 16.7 85e-1 10.004}
} {85e-1 10.004 16.7 24 2.5e01}
test cmdIL-3.15 {SortCompare procedure, -command option} -body {
    proc cmp {a b} {
	error "comparison error"
    }
    list [catch {lsort -command cmp {48 6}} msg] $msg $::errorInfo
} -cleanup {
    rename cmp ""
} -result {1 {comparison error} {comparison error
    while executing
"error "comparison error""
    (procedure "cmp" line 2)
    invoked from within
"cmp 48 6"
    (-compare command)
    invoked from within
"lsort -command cmp {48 6}"}}
test cmdIL-3.16 {SortCompare procedure, -command option, long command} -body {
    proc cmp {dummy a b} {
	string compare $a $b
    }
    lsort -command {cmp {this argument is very very long in order to make the dstring overflow its statically allocated space}} {{this first element is also long in order to help expand the dstring} {the second element, last but not least, is quite long also, in order to make absolutely sure that space is allocated dynamically for the dstring}}
} -cleanup {
    rename cmp ""
} -result {{the second element, last but not least, is quite long also, in order to make absolutely sure that space is allocated dynamically for the dstring} {this first element is also long in order to help expand the dstring}}
test cmdIL-3.17 {SortCompare procedure, -command option, non-integer result} -body {
    proc cmp {a b} {
	return foow
    }
    lsort -command cmp {48 6}
} -returnCodes error -cleanup {
    rename cmp ""
} -result {-compare command returned non-integer result}
test cmdIL-3.18 {SortCompare procedure, -command option} -body {
    proc cmp {a b} {
	expr {$b - $a}
    }
    lsort -command cmp {48 6 18 22 21 35 36}
} -cleanup {
    rename cmp ""
} -result {48 36 35 22 21 18 6}
test cmdIL-3.19 {SortCompare procedure, -decreasing option} {
    lsort -decreasing -integer {35 21 0x20 30 0o23 100 8}
} {100 35 0x20 30 21 0o23 8}

test cmdIL-4.1 {DictionaryCompare procedure, numerics, leading zeros} {
    lsort -dictionary {a003b a03b}
} {a03b a003b}
test cmdIL-4.2 {DictionaryCompare procedure, numerics, leading zeros} {
    lsort -dictionary {a3b a03b}
} {a3b a03b}
test cmdIL-4.3 {DictionaryCompare procedure, numerics, leading zeros} {
    lsort -dictionary {a3b A03b}
} {A03b a3b}
test cmdIL-4.4 {DictionaryCompare procedure, numerics, leading zeros} {
    lsort -dictionary {a3b a03B}
} {a3b a03B}
test cmdIL-4.5 {DictionaryCompare procedure, numerics, leading zeros} {
    lsort -dictionary {00000 000}
} {000 00000}
test cmdIL-4.6 {DictionaryCompare procedure, numerics, different lengths} {
    lsort -dictionary {a321b a03210b}
} {a321b a03210b}
test cmdIL-4.7 {DictionaryCompare procedure, numerics, different lengths} {
    lsort -dictionary {a03210b a321b}
} {a321b a03210b}
test cmdIL-4.8 {DictionaryCompare procedure, numerics} {
    lsort -dictionary {48 6a 18b 22a 21aa 35 36}
} {6a 18b 21aa 22a 35 36 48}
test cmdIL-4.9 {DictionaryCompare procedure, numerics} {
    lsort -dictionary {a123x a123b}
} {a123b a123x}
test cmdIL-4.10 {DictionaryCompare procedure, numerics} {
    lsort -dictionary {a123b a123x}
} {a123b a123x}
test cmdIL-4.11 {DictionaryCompare procedure, numerics} {
    lsort -dictionary {a1b aab}
} {a1b aab}
test cmdIL-4.12 {DictionaryCompare procedure, numerics} {
    lsort -dictionary {a1b a!b}
} {a!b a1b}
test cmdIL-4.13 {DictionaryCompare procedure, numerics} {
    lsort -dictionary {a1b2c a1b1c}
} {a1b1c a1b2c}
test cmdIL-4.14 {DictionaryCompare procedure, numerics} {
    lsort -dictionary {a1b2c a1b3c}
} {a1b2c a1b3c}
test cmdIL-4.15 {DictionaryCompare procedure, long numbers} {
    lsort -dictionary {a7654884321988762b a7654884321988761b}
} {a7654884321988761b a7654884321988762b}
test cmdIL-4.16 {DictionaryCompare procedure, long numbers} {
    lsort -dictionary {a8765488432198876b a7654884321988761b}
} {a7654884321988761b a8765488432198876b}
test cmdIL-4.17 {DictionaryCompare procedure, case} {
    lsort -dictionary {aBCd abcc}
} {abcc aBCd}
test cmdIL-4.18 {DictionaryCompare procedure, case} {
    lsort -dictionary {aBCd abce}
} {aBCd abce}
test cmdIL-4.19 {DictionaryCompare procedure, case} {
    lsort -dictionary {abcd ABcc}
} {ABcc abcd}
test cmdIL-4.20 {DictionaryCompare procedure, case} {
    lsort -dictionary {abcd ABce}
} {abcd ABce}
test cmdIL-4.21 {DictionaryCompare procedure, case} {
    lsort -dictionary {abCD ABcd}
} {ABcd abCD}
test cmdIL-4.22 {DictionaryCompare procedure, case} {
    lsort -dictionary {ABcd aBCd}
} {ABcd aBCd}
test cmdIL-4.23 {DictionaryCompare procedure, case} {
    lsort -dictionary {ABcd AbCd}
} {ABcd AbCd}
test cmdIL-4.24 {DictionaryCompare procedure, international characters} {hasIsoLocale} {
    ::tcltest::set_iso8859_1_locale
    set result [lsort -dictionary "a b c A B C \xe3 \xc4"]
    ::tcltest::restore_locale
    set result
} "A a B b C c \xe3 \xc4"
test cmdIL-4.25 {DictionaryCompare procedure, international characters} {hasIsoLocale} {
    ::tcltest::set_iso8859_1_locale
    set result [lsort -dictionary "a23\xe3 a23\xc5 a23\xe4"]
    ::tcltest::restore_locale
    set result
} "a23\xe3 a23\xe4 a23\xc5"
test cmdIL-4.26 {DefaultCompare procedure, signed characters} {
    set l [lsort [list "abc\200" "abc"]]
    set viewlist {}
    foreach s $l {
	set viewelem ""
	set len [string length $s]
	for {set i 0} {$i < $len} {incr i} {
	    set c [string index $s $i]
	    scan $c %c d
	    if {$d > 0 && $d < 128} {
		append viewelem $c
	    } else {
		append viewelem "\\[format %03o $d]"
	    }
	}
	lappend viewlist $viewelem
    }
    set viewlist
} [list "abc" "abc\\200"]
test cmdIL-4.27 {DictionaryCompare procedure, signed characters} {
    set l [lsort -dictionary [list "abc\200" "abc"]]
    set viewlist {}
    foreach s $l {
	set viewelem ""
	set len [string length $s]
	for {set i 0} {$i < $len} {incr i} {
	    set c [string index $s $i]
	    scan $c %c d
	    if {$d > 0 && $d < 128} {
		append viewelem $c
	    } else {
		append viewelem "\\[format %03o $d]"
	    }
	}
	lappend viewlist $viewelem
    }
    set viewlist
} [list "abc" "abc\\200"]
test cmdIL-4.28 {DictionaryCompare procedure, chars between Z and a in ASCII} {
    lsort -dictionary [list AA ` c CC]
} [list ` AA c CC]
test cmdIL-4.29 {DictionaryCompare procedure, chars between Z and a in ASCII} {
    lsort -dictionary [list AA ` c ^ \\ CC \[ \]]
} [list \[ \\ \] ^ ` AA c CC]
test cmdIL-4.30 {DictionaryCompare procedure, chars between Z and a in ASCII} {
    lsort -dictionary [list AA ` c ^ _ \\ CC \[ dude \] funky]
} [list \[ \\ \] ^ _ ` AA c CC dude funky]
test cmdIL-4.31 {DictionaryCompare procedure, chars between Z and a in ASCII} {
    lsort -dictionary [list AA c ` CC]
} [list ` AA c CC]
test cmdIL-4.32 {DictionaryCompare procedure, chars between Z and a in ASCII} {
    lsort -dictionary [list AA c CC `]
} [list ` AA c CC]
test cmdIL-4.33 {DictionaryCompare procedure, chars between Z and a in ASCII} {
    lsort -dictionary [list AA ! c CC `]
} [list ! ` AA c CC]
test cmdIL-4.34 {SortCompare procedure, -ascii option with -nocase option} {
    lsort -ascii -nocase {d e c b a d35 d300 100 20}
} {100 20 a b c d d300 d35 e}
test cmdIL-4.35 {SortCompare procedure, -ascii option with -nocase option} {
    lsort -ascii -nocase {d E c B a D35 d300 100 20}
} {100 20 a B c d d300 D35 E}
test cmdIL-4.36 {SortCompare procedure, UTF-8 with -nocase option} {
    scan [lsort -ascii -nocase [list \u101 \u100]] %c%c%c
} {257 32 256}
test cmdIL-4.37 {SortCompare procedure, UTF-8 with -nocase option} {
    scan [lsort -ascii -nocase [list a\u0000a a]] %c%c%c%c%c
} {97 32 97 0 97}
test cmdIL-4.38 {SortCompare procedure, UTF-8 with -nocase option} {
    scan [lsort -ascii -nocase [list a a\u0000a]] %c%c%c%c%c
} {97 32 97 0 97}

test cmdIL-5.1 {lsort with list style index} {
    lsort -ascii -decreasing -index {0 1} {
	{{Jim Alpha} 20000410}
	{{Joe Bravo} 19990320}
	{{Jacky Charlie} 19390911}
    }
} {{{Jacky Charlie} 19390911} {{Joe Bravo} 19990320} {{Jim Alpha} 20000410}}
test cmdIL-5.2 {lsort with list style index} {
    lsort -decreasing -index {0 1} {
	{{Jim Alpha} 20000410}
	{{Joe Bravo} 19990320}
	{{Jacky Charlie} 19390911}
    }
} {{{Jacky Charlie} 19390911} {{Joe Bravo} 19990320} {{Jim Alpha} 20000410}}
test cmdIL-5.3 {lsort with list style index} {
    lsort -integer -increasing -index {1 end} {
	{{Jim Alpha} 20000410}
	{{Joe Bravo} 19990320}
	{{Jacky Charlie} 19390911}
    }
} {{{Jacky Charlie} 19390911} {{Joe Bravo} 19990320} {{Jim Alpha} 20000410}}
test cmdIL-5.4 {lsort with list style index} {
    lsort -integer -index {1 end-1} {
	{the {0 1 2 3 4 5} quick}
	{brown {0 1 2 3 4} fox}
	{jumps {30 31 2 33} over}
	{the {0 1 2} lazy}
	{dogs {0 1}}
    }
} {{dogs {0 1}} {the {0 1 2} lazy} {jumps {30 31 2 33} over} {brown {0 1 2 3 4} fox} {the {0 1 2 3 4 5} quick}}
test cmdIL-5.5 {lsort with list style index and sharing} -body {
    proc test_lsort {l} {
	set n $l
	foreach e $l {lappend n [list [expr {rand()}] $e]}
	lindex [lsort -real -index $l $n] 1 1
    }
    expr srand(1)
    test_lsort 0
} -result 0 -cleanup {
    rename test_lsort ""
}
test cmdIL-5.6 {lsort with multiple list-style index options} {
    lsort -index {1 2 3} -index 0 {{a b} {c d} {b e}}
} {{a b} {b e} {c d}}

# Compiled version
test cmdIL-6.1 {lassign command syntax} -returnCodes error -body {
    apply {{} { lassign }}
} -result {wrong # args: should be "lassign list ?varName ...?"}
test cmdIL-6.2 {lassign command syntax} {
    apply {{} { lassign x }}
} x
test cmdIL-6.3 {lassign command} -body {
    apply {{} {
	set x FAIL
	list [lassign a x] $x
    }}
} -result {{} a}
test cmdIL-6.4 {lassign command} -body {
    apply {{} {
	set x FAIL
	set y FAIL
	list [lassign a x y] $x $y
    }}
} -result {{} a {}}
test cmdIL-6.5 {lassign command} -body {
    apply {{} {
	set x FAIL
	set y FAIL
	list [lassign {a b} x y] $x $y
    }}
} -result {{} a b}
test cmdIL-6.6 {lassign command} -body {
    apply {{} {
	set x FAIL
	set y FAIL
	list [lassign {a b c} x y] $x $y
    }}
} -result {c a b}
test cmdIL-6.7 {lassign command} -body {
    apply {{} {
	set x FAIL
	set y FAIL
	list [lassign {a b c d} x y] $x $y
    }}
} -result {{c d} a b}
test cmdIL-6.8 {lassign command - list format error} -body {
    apply {{} {
	set x FAIL
	set y FAIL
	list [catch {lassign {a {b}c d} x y} msg] $msg $x $y
    }}
} -result {1 {list element in braces followed by "c" instead of space} FAIL FAIL}
test cmdIL-6.9 {lassign command - assignment to arrays} -body {
    apply {{} {
	list [lassign {a b} x(x)] $x(x)
    }}
} -result {b a}
test cmdIL-6.10 {lassign command - variable update error} -body {
    apply {{} {
	set x(x) {}
	lassign a x
    }}
} -returnCodes error -result {can't set "x": variable is array}
test cmdIL-6.11 {lassign command - variable update error} -body {
    apply {{} {
	set x(x) {}
	set y FAIL
	list [catch {lassign a y x} msg] $msg $y
    }}
} -result {1 {can't set "x": variable is array} a}
test cmdIL-6.12 {lassign command - memory leak testing} -setup {
    unset -nocomplain x y
    set x(x) {}
    set y FAIL
    proc getbytes {} {
        set lines [split [memory info] "\n"]
        lindex [lindex $lines 3] 3
    }
    proc stress {} {
	global x y
	lassign {} y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y
	catch {lassign {} y y y y y y y y y y y y y y y y y y y y y y y y y x}
	catch {lassign {} x}
    }
} -constraints memory -body {
    set end [getbytes]
    for {set i 0} {$i < 5} {incr i} {
	stress
	set tmp $end
	set end [getbytes]
    }
    expr {$end - $tmp}
} -result 0 -cleanup {
    unset -nocomplain x y i tmp end
    rename getbytes {}
    rename stress {}
}
# Force non-compiled version
test cmdIL-6.13 {lassign command syntax} -returnCodes error -body {
    apply {{} {
	set lassign lassign
	$lassign
    }}
} -result {wrong # args: should be "lassign list ?varName ...?"}
test cmdIL-6.14 {lassign command syntax} {
    apply {{} {
	set lassign lassign
	$lassign x
    }}
} x
test cmdIL-6.15 {lassign command} -body {
    apply {{} {
	set lassign lassign
	set x FAIL
	list [$lassign a x] $x
    }}
} -result {{} a}
test cmdIL-6.16 {lassign command} -body {
    apply {{} {
	set lassign lassign
	set x FAIL
	set y FAIL
	list [$lassign a x y] $x $y
    }}
} -result {{} a {}}
test cmdIL-6.17 {lassign command} -body {
    apply {{} {
	set lassign lassign
	set x FAIL
	set y FAIL
	list [$lassign {a b} x y] $x $y
    }}
} -result {{} a b}
test cmdIL-6.18 {lassign command} -body {
    apply {{} {
	set lassign lassign
	set x FAIL
	set y FAIL
	list [$lassign {a b c} x y] $x $y
    }}
} -result {c a b}
test cmdIL-6.19 {lassign command} -body {
    apply {{} {
	set lassign lassign
	set x FAIL
	set y FAIL
	list [$lassign {a b c d} x y] $x $y
    }}
} -result {{c d} a b}
test cmdIL-6.20 {lassign command - list format error} -body {
    apply {{} {
	set lassign lassign
	set x FAIL
	set y FAIL
	list [catch {$lassign {a {b}c d} x y} msg] $msg $x $y
    }}
} -result {1 {list element in braces followed by "c" instead of space} FAIL FAIL}
test cmdIL-6.21 {lassign command - assignment to arrays} -body {
    apply {{} {
	set lassign lassign
	list [$lassign {a b} x(x)] $x(x)
    }}
} -result {b a}
test cmdIL-6.22 {lassign command - variable update error} -body {
    apply {{} {
	set lassign lassign
	set x(x) {}
	$lassign a x
    }}
} -returnCodes 1 -result {can't set "x": variable is array}
test cmdIL-6.23 {lassign command - variable update error} -body {
    apply {{} {
	set lassign lassign
	set x(x) {}
	set y FAIL
	list [catch {$lassign a y x} msg] $msg $y
    }}
} -result {1 {can't set "x": variable is array} a}
test cmdIL-6.24 {lassign command - memory leak testing} -setup {
    set x(x) {}
    set y FAIL
    proc getbytes {} {
        set lines [split [memory info] "\n"]
        lindex [lindex $lines 3] 3
    }
    proc stress {} {
	global x y
	set lassign lassign
	$lassign {} y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y
	catch {$lassign {} y y y y y y y y y y y y y y y y y y y y y y y y y x}
	catch {$lassign {} x}
    }
} -constraints memory -body {
    set end [getbytes]
    for {set i 0} {$i < 5} {incr i} {
	stress
	set tmp $end
	set end [getbytes]
    }
    expr {$end - $tmp}
} -result 0 -cleanup {
    unset -nocomplain x y i tmp end
    rename getbytes {}
    rename stress {}
}
# Assorted shimmering problems
test cmdIL-6.25 {lassign command - shimmering protection} -body {
    apply {{} {
	set x {a b c}
	list [lassign $x $x y] $x [set $x] $y
    }}
} -result {c {a b c} a b}
test cmdIL-6.26 {lassign command - shimmering protection} -body {
    apply {{} {
	set x {a b c}
	set lassign lassign
	list [$lassign $x $x y] $x [set $x] $y
    }}
} -result {c {a b c} a b}

test cmdIL-7.1 {lreverse command} -body {
    lreverse
} -returnCodes error -result "wrong # args: should be \"lreverse list\""
test cmdIL-7.2 {lreverse command} -body {
    lreverse a b
} -returnCodes error -result "wrong # args: should be \"lreverse list\""
test cmdIL-7.3 {lreverse command} -body {
    lreverse "not \{a list"
} -returnCodes error -result {unmatched open brace in list}
test cmdIL-7.4 {lreverse command - shared object} {
    set x {a b {c d} e f}
    lreverse $x
} {f e {c d} b a}
test cmdIL-7.5 {lreverse command - unshared object} {
    lreverse [list a b {c d} e f]
} {f e {c d} b a}
test cmdIL-7.6 {lreverse command - unshared object [Bug 1672585]} {
    lreverse [set x {1 2 3}][unset x]
} {3 2 1}
test cmdIL-7.7 {lreverse command - empty object [Bug 1876793]} {
    lreverse [list]
} {}
test cmdIL-7.8 {lreverse command - shared intrep [Bug 1675044]} -setup {
    teststringobj set 1 {1 2 3}
    testobj convert 1 list
    testobj duplicate 1 2
    variable x [teststringobj get 1]
    variable y [teststringobj get 2]
    testobj freeallvars
    proc K {a b} {return $a}
} -constraints testobj -body {
    lreverse [K $y [unset y]]
    lindex $x 0
} -cleanup {
    unset -nocomplain x y
    rename K {}
} -result 1

# This belongs in info test, but adding tests there breaks tests
# that compute source file line numbers.
test info-20.6 {Bug 3587651} -setup {
    namespace eval my {namespace eval tcl {namespace eval mathfunc {
        proc demo x {return 42}
    }}}} -body {    namespace eval my {expr {"demo" in [info functions]}}} -cleanup {
    namespace delete my
} -result 1


# cleanup
::tcltest::cleanupTests
return

# Local Variables:
# mode: tcl
# End: