} [list 1 "wrong # args: should be \"trace remove type ?arg ...?\""]
test trace-14.4 "trace command, wrong # args errors" {
    list [catch {trace info} msg] $msg
} [list 1 "wrong # args: should be \"trace info type name\""]

test trace-14.5 {trace command, invalid option} {
    list [catch {trace gorp} msg] $msg
} [list 1 "bad option \"gorp\": must be add, info, remove, variable, vdelete, or vinfo"]
} [list 1 "bad option \"gorp\": should be add, info, remove, variable, vdelete, or vinfo"]

# Again, [trace ... command] and [trace ... variable] share syntax and
# error message styles for their opList options; these loops test those 
# error messages.

set i 0
set errs [list "array, read, unset, or write" "delete or rename" "enter, leave, enterstep, or leavestep"]
set abbvs [list {a r u w} {d r} {}]
proc x {} {}
foreach type {variable command execution} err $errs abbvlist $abbvs {
    foreach op {add remove} {
	test trace-14.6.[incr i] "trace $op $type errors" {
	    list [catch {trace $op $type x {y z w} a} msg] $msg
	} [list 1 "bad operation \"y\": must be $err"]
	} [list 1 "bad operation \"y\": should be $err"]
	foreach abbv $abbvlist {
	    test trace-14.6.[incr i] "trace $op $type rejects abbreviations" {
		list [catch {trace $op $type x $abbv a} msg] $msg
	    } [list 1 "bad operation \"$abbv\": must be $err"]
	    } [list 1 "bad operation \"$abbv\": should be $err"]
	}
	test trace-14.6.[incr i] "trace $op $type rejects null opList" {
	    list [catch {trace $op $type x {} a} msg] $msg
	} [list 1 "bad operation list \"\": must be one or more of $err"]
	} [list 1 "bad operation list \"\": should be one or more of $err"]
    }
}
rename x {}

test trace-14.7 {trace command, "trace variable" errors} {
    list [catch {trace variable} msg] $msg
} [list 1 "wrong # args: should be \"trace variable name ops command\""]
test trace-14.8 {trace command, "trace variable" errors} {
    list [catch {trace variable x} msg] $msg
} [list 1 "wrong # args: should be \"trace variable name ops command\""]
test trace-14.9 {trace command, "trace variable" errors} {
    list [catch {trace variable x y} msg] $msg
} [list 1 "wrong # args: should be \"trace variable name ops command\""]
test trace-14.10 {trace command, "trace variable" errors} {
    list [catch {trace variable x y z w} msg] $msg
} [list 1 "wrong # args: should be \"trace variable name ops command\""]
test trace-14.11 {trace command, "trace variable" errors} {
    list [catch {trace variable x y z} msg] $msg
} [list 1 "bad operations \"y\": should be one or more of rwua"]
} [list 1 "bad operations \"y\": should be one or more character of rwua"]


test trace-14.12 {trace command ("remove variable" option)} {
    unset -nocomplain x
    set info {}
    trace add variable x write traceProc
    trace remove variable x write traceProc