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# Commands covered: trace
#
# 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.
# 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.
#
# RCS: @(#) $Id: trace.test,v 1.18 2002/06/14 13:17:17 dkf Exp $
if {[lsearch [namespace children] ::tcltest] == -1} {
package require tcltest
namespace import -force ::tcltest::*
}
proc traceScalar {name1 name2 op} {
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# Commands covered: trace
#
# 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.
# 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.
#
# RCS: @(#) $Id: trace.test,v 1.19 2002/06/17 22:52:51 hobbs Exp $
if {[lsearch [namespace children] ::tcltest] == -1} {
package require tcltest
namespace import -force ::tcltest::*
}
proc traceScalar {name1 name2 op} {
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} [list 1 "bad option \"gorp\": must 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"]
set abbvs [list {a r u w} {d r}]
foreach type {variable command} 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"]
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"]
}
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"]
}
}
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\""]
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} [list 1 "bad option \"gorp\": must 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"]
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"]
}
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"]
}
}
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\""]
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# Delete procedures when done, so we don't clash with other tests
# (e.g. foobar will clash with 'unknown' tests).
catch {rename foobar {}}
catch {rename foo {}}
catch {rename bar {}}
# Delete arrays when done, so they can be re-used as scalars
# elsewhere.
catch {unset x}
catch {unset y}
# cleanup
::tcltest::cleanupTests
return
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# Delete procedures when done, so we don't clash with other tests
# (e.g. foobar will clash with 'unknown' tests).
catch {rename foobar {}}
catch {rename foo {}}
catch {rename bar {}}
proc foo {a} {
set b $a
}
proc traceExecute {args} {
global info
lappend info $args
}
test trace-21.1 {trace execution: enter} {
set info {}
trace add execution foo enter [list traceExecute foo]
foo 1
trace remove execution foo enter [list traceExecute foo]
set info
} {{foo {foo 1} enter}}
test trace-21.2 {trace exeuction: leave} {
set info {}
trace add execution foo leave [list traceExecute foo]
foo 2
trace remove execution foo leave [list traceExecute foo]
set info
} {{foo {foo 2} 0 2 leave}}
test trace-21.3 {trace exeuction: enter, leave} {
set info {}
trace add execution foo {enter leave} [list traceExecute foo]
foo 3
trace remove execution foo {enter leave} [list traceExecute foo]
set info
} {{foo {foo 3} enter} {foo {foo 3} 0 3 leave}}
test trace-21.4 {trace execution: enter, leave, enterstep} {
set info {}
trace add execution foo {enter leave enterstep} [list traceExecute foo]
foo 3
trace remove execution foo {enter leave enterstep} [list traceExecute foo]
set info
} {{foo {foo 3} enter} {foo {set b 3} enterstep} {foo {foo 3} 0 3 leave}}
test trace-21.5 {trace execution: enter, leave, enterstep, leavestep} {
set info {}
trace add execution foo {enter leave enterstep leavestep} [list traceExecute foo]
foo 3
trace remove execution foo {enter leave enterstep leavestep} [list traceExecute foo]
set info
} {{foo {foo 3} enter} {foo {set b 3} enterstep} {foo {set b 3} 0 3 leavestep} {foo {foo 3} 0 3 leave}}
test trace-21.6 {trace execution: enterstep, leavestep} {
set info {}
trace add execution foo {enterstep leavestep} [list traceExecute foo]
foo 3
trace remove execution foo {enterstep leavestep} [list traceExecute foo]
set info
} {{foo {set b 3} enterstep} {foo {set b 3} 0 3 leavestep}}
test trace-21.7 {trace execution: enterstep} {
set info {}
trace add execution foo {enterstep} [list traceExecute foo]
foo 3
trace remove execution foo {enterstep} [list traceExecute foo]
set info
} {{foo {set b 3} enterstep}}
test trace-21.8 {trace execution: leavestep} {
set info {}
trace add execution foo {leavestep} [list traceExecute foo]
foo 3
trace remove execution foo {leavestep} [list traceExecute foo]
set info
} {{foo {set b 3} 0 3 leavestep}}
proc factorial {n} {
if {$n != 1} { return [expr {$n * [factorial [expr {$n -1 }]]}] }
return 1
}
test trace-22.1 {recursive(1) trace execution: enter} {
set info {}
trace add execution factorial {enter} [list traceExecute factorial]
factorial 1
trace remove execution factorial {enter} [list traceExecute factorial]
set info
} {{factorial {factorial 1} enter}}
test trace-22.2 {recursive(2) trace execution: enter} {
set info {}
trace add execution factorial {enter} [list traceExecute factorial]
factorial 2
trace remove execution factorial {enter} [list traceExecute factorial]
set info
} {{factorial {factorial 2} enter} {factorial {factorial 1} enter}}
test trace-22.3 {recursive(3) trace execution: enter} {
set info {}
trace add execution factorial {enter} [list traceExecute factorial]
factorial 3
trace remove execution factorial {enter} [list traceExecute factorial]
set info
} {{factorial {factorial 3} enter} {factorial {factorial 2} enter} {factorial {factorial 1} enter}}
test trace-23.1 {recursive(1) trace execution: enter, leave, enterstep, leavestep} {
set info {}
trace add execution factorial {enter leave enterstep leavestep} [list traceExecute]
factorial 1
trace remove execution factorial {enter leave enterstep leavestep} [list traceExecute]
join $info "\n"
} {{factorial 1} enter
{if {$n != 1} { return [expr {$n * [factorial [expr {$n -1 }]]}] }} enterstep
{if {$n != 1} { return [expr {$n * [factorial [expr {$n -1 }]]}] }} 0 {} leavestep
{return 1} enterstep
{return 1} 2 1 leavestep
{factorial 1} 0 1 leave}
test trace-23.2 {recursive(2) trace execution: enter, leave, enterstep, leavestep} {
set info {}
trace add execution factorial {enter leave enterstep leavestep} [list traceExecute]
factorial 2
trace remove execution factorial {enter leave enterstep leavestep} [list traceExecute]
join $info "\n"
} {{factorial 2} enter
{if {$n != 1} { return [expr {$n * [factorial [expr {$n -1 }]]}] }} enterstep
{expr {$n * [factorial [expr {$n -1 }]]}} enterstep
{expr {$n -1 }} enterstep
{expr {$n -1 }} 0 1 leavestep
{factorial 1} enterstep
{factorial 1} enter
{if {$n != 1} { return [expr {$n * [factorial [expr {$n -1 }]]}] }} enterstep
{if {$n != 1} { return [expr {$n * [factorial [expr {$n -1 }]]}] }} 0 {} leavestep
{return 1} enterstep
{return 1} 2 1 leavestep
{factorial 1} 0 1 leave
{factorial 1} 0 1 leavestep
{expr {$n * [factorial [expr {$n -1 }]]}} 0 2 leavestep
{return 2} enterstep
{return 2} 2 2 leavestep
{if {$n != 1} { return [expr {$n * [factorial [expr {$n -1 }]]}] }} 2 2 leavestep
{factorial 2} 0 2 leave}
test trace-23.3 {recursive(3) trace execution: enter, leave, enterstep, leavestep} {
set info {}
trace add execution factorial {enter leave enterstep leavestep} [list traceExecute]
factorial 3
trace remove execution factorial {enter leave enterstep leavestep} [list traceExecute]
join $info "\n"
} {{factorial 3} enter
{if {$n != 1} { return [expr {$n * [factorial [expr {$n -1 }]]}] }} enterstep
{expr {$n * [factorial [expr {$n -1 }]]}} enterstep
{expr {$n -1 }} enterstep
{expr {$n -1 }} 0 2 leavestep
{factorial 2} enterstep
{factorial 2} enter
{if {$n != 1} { return [expr {$n * [factorial [expr {$n -1 }]]}] }} enterstep
{expr {$n * [factorial [expr {$n -1 }]]}} enterstep
{expr {$n -1 }} enterstep
{expr {$n -1 }} 0 1 leavestep
{factorial 1} enterstep
{factorial 1} enter
{if {$n != 1} { return [expr {$n * [factorial [expr {$n -1 }]]}] }} enterstep
{if {$n != 1} { return [expr {$n * [factorial [expr {$n -1 }]]}] }} 0 {} leavestep
{return 1} enterstep
{return 1} 2 1 leavestep
{factorial 1} 0 1 leave
{factorial 1} 0 1 leavestep
{expr {$n * [factorial [expr {$n -1 }]]}} 0 2 leavestep
{return 2} enterstep
{return 2} 2 2 leavestep
{if {$n != 1} { return [expr {$n * [factorial [expr {$n -1 }]]}] }} 2 2 leavestep
{factorial 2} 0 2 leave
{factorial 2} 0 2 leavestep
{expr {$n * [factorial [expr {$n -1 }]]}} 0 6 leavestep
{return 6} enterstep
{return 6} 2 6 leavestep
{if {$n != 1} { return [expr {$n * [factorial [expr {$n -1 }]]}] }} 2 6 leavestep
{factorial 3} 0 6 leave}
proc traceDelete {cmd args} {
eval trace remove execution $cmd [lindex [trace info execution $cmd] 0]
global info
set info $args
}
test trace-24.1 {delete trace during enter trace} {
set info {}
trace add execution foo enter [list traceDelete foo]
foo 1
list $info [trace info execution foo]
} {{{foo 1} enter} {}}
test trace-24.2 {delete trace during leave trace} {
set info {}
trace add execution foo leave [list traceDelete foo]
foo 1
list $info [trace info execution foo]
} {{{foo 1} 0 1 leave} {}}
test trace-24.3 {delete trace during enter-leave trace} {
set info {}
trace add execution foo {enter leave} [list traceDelete foo]
foo 1
list $info [trace info execution foo]
} {{{foo 1} enter} {}}
test trace-24.4 {delete trace during all exec traces} {
set info {}
trace add execution foo {enter leave enterstep leavestep} [list traceDelete foo]
foo 1
list $info [trace info execution foo]
} {{{foo 1} enter} {}}
test trace-24.5 {delete trace during all exec traces except enter} {
set info {}
trace add execution foo {leave enterstep leavestep} [list traceDelete foo]
foo 1
list $info [trace info execution foo]
} {{{set b 1} enterstep} {}}
proc traceDelete {cmd args} {
rename $cmd {}
global info
set info $args
}
proc foo {a} {
set b $a
}
test trace-25.1 {delete command during enter trace} {
set info {}
trace add execution foo enter [list traceDelete foo]
catch {foo 1} err
list $err $info [trace info execution foo]
} {{invalid command name "foo"} {{foo 1} enter} {unknown command "foo"}}
proc foo {a} {
set b $a
}
test trace-25.2 {delete command during leave trace} {
set info {}
trace add execution foo leave [list traceDelete foo]
foo 1
list $info [trace info execution foo]
} {{{foo 1} 0 1 leave} {unknown command "foo"}}
proc foo {a} {
set b $a
}
test trace-25.3 {delete command during enter then leave trace} {
set info {}
trace add execution foo enter [list traceDelete foo]
trace add execution foo leave [list traceDelete foo]
catch {foo 1} err
list $err $info [trace info execution foo]
} {{invalid command name "foo"} {{foo 1} enter} {unknown command "foo"}}
proc foo {a} {
set b $a
}
proc traceExecute2 {args} {
global info
lappend info $args
}
# This shows the peculiar consequences of having two traces
# at the same time: as well as tracing the procedure you want
test trace-25.4 {order dependencies of two enter traces} {
set info {}
trace add execution foo enter [list traceExecute traceExecute]
trace add execution foo enter [list traceExecute2 traceExecute2]
catch {foo 1} err
trace remove execution foo enter [list traceExecute traceExecute]
trace remove execution foo enter [list traceExecute2 traceExecute2]
join [list $err [join $info \n] [trace info execution foo]] "\n"
} {1
traceExecute2 {foo 1} enter
traceExecute {foo 1} enter
}
test trace-25.5 {order dependencies of two step traces} {
set info {}
trace add execution foo enterstep [list traceExecute traceExecute]
trace add execution foo enterstep [list traceExecute2 traceExecute2]
catch {foo 1} err
trace remove execution foo enterstep [list traceExecute traceExecute]
trace remove execution foo enterstep [list traceExecute2 traceExecute2]
join [list $err [join $info \n] [trace info execution foo]] "\n"
} {1
traceExecute2 {set b 1} enterstep
traceExecute {set b 1} enterstep
}
# We don't want the result string (5th argument), or the results
# will get unmanageable.
proc tracePostExecute {args} {
global info
lappend info [concat [lrange $args 0 2] [lindex $args 4]]
}
proc tracePostExecute2 {args} {
global info
lappend info [concat [lrange $args 0 2] [lindex $args 4]]
}
test trace-25.6 {order dependencies of two leave traces} {
set info {}
trace add execution foo leave [list tracePostExecute tracePostExecute]
trace add execution foo leave [list tracePostExecute2 tracePostExecute2]
catch {foo 1} err
trace remove execution foo leave [list tracePostExecute tracePostExecute]
trace remove execution foo leave [list tracePostExecute2 tracePostExecute2]
join [list $err [join $info \n] [trace info execution foo]] "\n"
} {1
tracePostExecute {foo 1} 0 leave
tracePostExecute2 {foo 1} 0 leave
}
test trace-25.7 {order dependencies of two leavestep traces} {
set info {}
trace add execution foo leavestep [list tracePostExecute tracePostExecute]
trace add execution foo leavestep [list tracePostExecute2 tracePostExecute2]
catch {foo 1} err
trace remove execution foo leavestep [list tracePostExecute tracePostExecute]
trace remove execution foo leavestep [list tracePostExecute2 tracePostExecute2]
join [list $err [join $info \n] [trace info execution foo]] "\n"
} {1
tracePostExecute {set b 1} 0 leavestep
tracePostExecute2 {set b 1} 0 leavestep
}
proc foo {a} {
set b $a
}
proc traceDelete {cmd args} {
rename $cmd {}
global info
set info $args
}
test trace-25.8 {delete command during enter leave and enter/leave-step traces} {
set info {}
trace add execution foo enter [list traceDelete foo]
trace add execution foo leave [list traceDelete foo]
trace add execution foo enterstep [list traceDelete foo]
trace add execution foo leavestep [list traceDelete foo]
catch {foo 1} err
list $err $info [trace info execution foo]
} {{invalid command name "foo"} {{foo 1} enter} {unknown command "foo"}}
proc foo {a} {
set b $a
}
test trace-25.9 {delete command during enter leave and leavestep traces} {
set info {}
trace add execution foo enter [list traceDelete foo]
trace add execution foo leave [list traceDelete foo]
trace add execution foo leavestep [list traceDelete foo]
catch {foo 1} err
list $err $info [trace info execution foo]
} {{invalid command name "foo"} {{foo 1} enter} {unknown command "foo"}}
proc foo {a} {
set b $a
}
test trace-25.10 {delete command during leave and leavestep traces} {
set info {}
trace add execution foo leave [list traceDelete foo]
trace add execution foo leavestep [list traceDelete foo]
catch {foo 1} err
list $err $info [trace info execution foo]
} {1 {{set b 1} 0 1 leavestep} {unknown command "foo"}}
proc foo {a} {
set b $a
}
test trace-25.11 {delete command during enter and enterstep traces} {
set info {}
trace add execution foo enter [list traceDelete foo]
trace add execution foo enterstep [list traceDelete foo]
catch {foo 1} err
list $err $info [trace info execution foo]
} {{invalid command name "foo"} {{foo 1} enter} {unknown command "foo"}}
# Delete procedures when done, so we don't clash with other tests
# (e.g. foobar will clash with 'unknown' tests).
catch {rename foobar {}}
catch {rename foo {}}
catch {rename bar {}}
# cleanup
::tcltest::cleanupTests
return
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