archie/tcl7.6/tests/lindex.test

# Commands covered:  lindex
#
# 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 Sun Microsystems, Inc.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# SCCS: @(#) lindex.test 1.5 96/02/16 08:56:03

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

test lindex-1.1 {basic tests} {
    lindex {a b c} 0} a
test lindex-1.2 {basic tests} {
    lindex {a {b c d} x} 1} {b c d}
test lindex-1.3 {basic tests} {
    lindex {a b\ c\ d x} 1} {b c d}
test lindex-1.4 {basic tests} {
    lindex {a b c} 3} {}
test lindex-1.5 {basic tests} {
    list [catch {lindex {a b c} -1} msg] $msg
} {0 {}}
test lindex-1.6 {basic tests} {
    lindex {a b c d} end
} d
test lindex-1.7 {basic tests} {
    lindex {a b c d} 100
} {}
test lindex-1.8 {basic tests} {
    lindex {a} e
} a
test lindex-1.9 {basic tests} {
    lindex {} end
} {}
test lindex-1.10 {basic tests} {
    lindex {a b c d} 3
} d

test lindex-2.1 {error conditions} {
    list [catch {lindex msg} msg] $msg
} {1 {wrong # args: should be "lindex list index"}}
test lindex-2.2 {error conditions} {
    list [catch {lindex 1 2 3 4} msg] $msg
} {1 {wrong # args: should be "lindex list index"}}
test lindex-2.3 {error conditions} {
    list [catch {lindex 1 2a2} msg] $msg
} {1 {expected integer but got "2a2"}}
test lindex-2.4 {error conditions} {
    list [catch {lindex "a \{" 2} msg] $msg
} {1 {unmatched open brace in list}}
test lindex-2.5 {error conditions} {
    list [catch {lindex {a {b c}d e} 2} msg] $msg
} {1 {list element in braces followed by "d" instead of space}}
test lindex-2.6 {error conditions} {
    list [catch {lindex {a "b c"def ghi} 2} msg] $msg
} {1 {list element in quotes followed by "def" instead of space}}

test lindex-3.1 {quoted elements} {
    lindex {a "b c" d} 1
} {b c}
test lindex-3.2 {quoted elements} {
    lindex {"{}" b c} 0
} {{}}
test lindex-3.3 {quoted elements} {
    lindex {ab "c d \" x" y} 1
} {c d " x}
test lindex-3.4 {quoted elements} {
    lindex {a b {c d "e} {f g"}} 2
} {c d "e}