source [file dirname [info script]]/testing.tcl

test concat-1.1 {simple concatenation} {
    concat a b c d e f g
} {a b c d e f g}
test concat-1.2 {merging lists together} {
    concat a {b c d} {e f g h}
} {a b c d e f g h}
test concat-1.3 {merge lists, retain sub-lists} {
    concat a {b {c d}} {{e f}} g h
} {a b {c d} {e f} g h}
test concat-1.4 {special characters} {
    concat a\{ {b \{c d} \{d
} "a{ b \\{c d {d"

test concat-2.1 {error check: one empty argument} {
    concat {}
} {}

test concat-3.1 {error check: no arguments} {
    list [catch concat msg] $msg
} {0 {}}

test concat-4.1 {pruning off extra white space} {
    concat {} {a b c}
} {a b c}
test concat-4.2 {pruning off extra white space} {
    concat x y "  a b c	\n\t  " "   "  " def "
} {x y a b c def}
test concat-4.3 {pruning off extra white space sets length correctly} {
    llength [concat { {{a}} }]
} 1

test concat-5.1 {Tcl_ScanCountedElement procedure - don't leave unmatched braces} {
    # This test checks for a very tricky feature.  Any list element
    # generated with Tcl_ScanCountedElement and Tcl_ConvertElement must
    # have the property that it can be enclosing in curly braces to make
    # an embedded sub-list.  If this property doesn't hold, then
    # Tcl_DStringStartSublist doesn't work.

    set x {}
    lappend x " \\\{ \\"
    concat $x [llength "{$x}"]
} {\ \\\{\ \\ 1}

test concat-6.1 {Tcl_ConcatObj - backslash-space at end of argument} {
    concat a {b\ } c
} {a b\  c}
test concat-6.2 {Tcl_ConcatObj - backslash-space at end of argument} {
    concat a {b\   } c
} {a b\  c}
test concat-6.3 {Tcl_ConcatObj - backslash-space at end of argument} {
    concat a {b\\   } c
} {a b\\  c}
test concat-6.4 {Tcl_ConcatObj - backslash-space at end of argument} {
    concat a {b } c
} {a b c}
test concat-6.5 {Tcl_ConcatObj - backslash-space at end of argument} {
    concat a { } c
} {a c}
test concat-6.6 {Tcl_ConcatObj - utf-8 sequence with "whitespace" char} {
    # Check for Bug #227512.  If this violates C isspace, then it returns \xc3.
    concat \xe0
} \xe0

testreport