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-rw-r--r--tcl/tests/trace.test1448
1 files changed, 1156 insertions, 292 deletions
diff --git a/tcl/tests/trace.test b/tcl/tests/trace.test
index c2915fe260d..b17a9d0a1ed 100644
--- a/tcl/tests/trace.test
+++ b/tcl/tests/trace.test
@@ -52,57 +52,72 @@ proc traceCheck {cmd args} {
proc traceCrtElement {value name1 name2 op} {
uplevel set ${name1}($name2) $value
}
+proc traceCommand {oldName newName op} {
+ global info
+ set info [list $oldName $newName $op]
+}
+
+test trace-0.0 {memory corruption in trace (Tcl Bug 484339)} {
+ # You may need Purify or Electric Fence to reliably
+ # see this one fail.
+ catch {unset z}
+ trace add variable z array {set z(foo) 1 ;#}
+ set res "names: [array names z]"
+ catch {unset ::z}
+ trace variable ::z w {unset ::z; error "memory corruption";#}
+ list [catch {set ::z 1} msg] $msg
+} {1 {can't set "::z": memory corruption}}
# Read-tracing on variables
test trace-1.1 {trace variable reads} {
catch {unset x}
set info {}
- trace var x r traceScalar
+ trace add variable x read traceScalar
list [catch {set x} msg] $msg $info
-} {1 {can't read "x": no such variable} {x {} r 1 {can't read "x": no such variable}}}
+} {1 {can't read "x": no such variable} {x {} read 1 {can't read "x": no such variable}}}
test trace-1.2 {trace variable reads} {
catch {unset x}
set x 123
set info {}
- trace var x r traceScalar
+ trace add variable x read traceScalar
list [catch {set x} msg] $msg $info
-} {0 123 {x {} r 0 123}}
+} {0 123 {x {} read 0 123}}
test trace-1.3 {trace variable reads} {
catch {unset x}
set info {}
- trace var x r traceScalar
+ trace add variable x read traceScalar
set x 123
set info
} {}
test trace-1.4 {trace array element reads} {
catch {unset x}
set info {}
- trace var x(2) r traceArray
+ trace add variable x(2) read traceArray
list [catch {set x(2)} msg] $msg $info
-} {1 {can't read "x(2)": no such element in array} {x 2 r 1 {can't read "x(2)": no such element in array}}}
+} {1 {can't read "x(2)": no such element in array} {x 2 read 1 {can't read "x(2)": no such element in array}}}
test trace-1.5 {trace array element reads} {
catch {unset x}
set x(2) zzz
set info {}
- trace var x(2) r traceArray
+ trace add variable x(2) read traceArray
list [catch {set x(2)} msg] $msg $info
-} {0 zzz {x 2 r 0 zzz}}
+} {0 zzz {x 2 read 0 zzz}}
test trace-1.6 {trace array element reads} {
catch {unset x}
set info {}
- trace variable x r traceArray2
+ trace add variable x read traceArray2
proc p {} {
global x
set x(2) willi
return $x(2)
}
list [catch {p} msg] $msg $info
-} {0 willi {x 2 r}}
+} {0 willi {x 2 read}}
test trace-1.7 {trace array element reads, create element undefined if nonexistant} {
catch {unset x}
set info {}
- trace variable x r q
+ trace add variable x read q
proc q {name1 name2 op} {
global info
set info [list $name1 $name2 $op]
@@ -115,57 +130,85 @@ test trace-1.7 {trace array element reads, create element undefined if nonexista
return $x(Y)
}
list [catch {p} msg] $msg $info
-} {0 wolf {x Y r}}
+} {0 wolf {x Y read}}
test trace-1.8 {trace reads on whole arrays} {
catch {unset x}
set info {}
- trace var x r traceArray
+ trace add variable x read traceArray
list [catch {set x(2)} msg] $msg $info
} {1 {can't read "x(2)": no such variable} {}}
test trace-1.9 {trace reads on whole arrays} {
catch {unset x}
set x(2) zzz
set info {}
- trace var x r traceArray
+ trace add variable x read traceArray
list [catch {set x(2)} msg] $msg $info
-} {0 zzz {x 2 r 0 zzz}}
+} {0 zzz {x 2 read 0 zzz}}
test trace-1.10 {trace variable reads} {
catch {unset x}
set x 444
set info {}
- trace var x r traceScalar
+ trace add variable x read traceScalar
unset x
set info
} {}
+test trace-1.11 {read traces that modify the array structure} {
+ catch {unset x}
+ set x(bar) 0
+ trace variable x r {set x(foo) 1 ;#}
+ trace variable x r {unset -nocomplain x(bar) ;#}
+ array get x
+} {}
+test trace-1.12 {read traces that modify the array structure} {
+ catch {unset x}
+ set x(bar) 0
+ trace variable x r {unset -nocomplain x(bar) ;#}
+ trace variable x r {set x(foo) 1 ;#}
+ array get x
+} {}
+test trace-1.13 {read traces that modify the array structure} {
+ catch {unset x}
+ set x(bar) 0
+ trace variable x r {set x(foo) 1 ;#}
+ trace variable x r {unset -nocomplain x;#}
+ list [catch {array get x} res] $res
+} {1 {can't read "x(bar)": no such variable}}
+test trace-1.14 {read traces that modify the array structure} {
+ catch {unset x}
+ set x(bar) 0
+ trace variable x r {unset -nocomplain x;#}
+ trace variable x r {set x(foo) 1 ;#}
+ list [catch {array get x} res] $res
+} {1 {can't read "x(bar)": no such variable}}
# Basic write-tracing on variables
test trace-2.1 {trace variable writes} {
catch {unset x}
set info {}
- trace var x w traceScalar
+ trace add variable x write traceScalar
set x 123
set info
-} {x {} w 0 123}
+} {x {} write 0 123}
test trace-2.2 {trace writes to array elements} {
catch {unset x}
set info {}
- trace var x(33) w traceArray
+ trace add variable x(33) write traceArray
set x(33) 444
set info
-} {x 33 w 0 444}
+} {x 33 write 0 444}
test trace-2.3 {trace writes on whole arrays} {
catch {unset x}
set info {}
- trace var x w traceArray
+ trace add variable x write traceArray
set x(abc) qq
set info
-} {x abc w 0 qq}
+} {x abc write 0 qq}
test trace-2.4 {trace variable writes} {
catch {unset x}
set x 1234
set info {}
- trace var x w traceScalar
+ trace add variable x write traceScalar
set x
set info
} {}
@@ -173,7 +216,7 @@ test trace-2.5 {trace variable writes} {
catch {unset x}
set x 1234
set info {}
- trace var x w traceScalar
+ trace add variable x write traceScalar
unset x
set info
} {}
@@ -186,42 +229,42 @@ test trace-2.5 {trace variable writes} {
test trace-3.1 {trace variable read-modify-writes} {
catch {unset x}
set info {}
- trace var x r traceScalarAppend
+ trace add variable x read traceScalarAppend
append x 123
append x 456
lappend x 789
set info
-} {x {} r 0 123456}
+} {x {} read 0 123456}
test trace-3.2 {trace variable read-modify-writes} {
catch {unset x}
set info {}
- trace var x rw traceScalarAppend
+ trace add variable x {read write} traceScalarAppend
append x 123
lappend x 456
set info
-} {x {} w 0 123 x {} r 0 123 x {} w 0 {123 456}}
+} {x {} write 0 123 x {} read 0 123 x {} write 0 {123 456}}
# Basic unset-tracing on variables
test trace-4.1 {trace variable unsets} {
catch {unset x}
set info {}
- trace var x u traceScalar
+ trace add variable x unset traceScalar
catch {unset x}
set info
-} {x {} u 1 {can't read "x": no such variable}}
+} {x {} unset 1 {can't read "x": no such variable}}
test trace-4.2 {variable mustn't exist during unset trace} {
catch {unset x}
set x 1234
set info {}
- trace var x u traceScalar
+ trace add variable x unset traceScalar
unset x
set info
-} {x {} u 1 {can't read "x": no such variable}}
+} {x {} unset 1 {can't read "x": no such variable}}
test trace-4.3 {unset traces mustn't be called during reads and writes} {
catch {unset x}
set info {}
- trace var x u traceScalar
+ trace add variable x unset traceScalar
set x 44
set x
set info
@@ -230,31 +273,31 @@ test trace-4.4 {trace unsets on array elements} {
catch {unset x}
set x(0) 18
set info {}
- trace var x(1) u traceArray
+ trace add variable x(1) unset traceArray
catch {unset x(1)}
set info
-} {x 1 u 1 {can't read "x(1)": no such element in array}}
+} {x 1 unset 1 {can't read "x(1)": no such element in array}}
test trace-4.5 {trace unsets on array elements} {
catch {unset x}
set x(1) 18
set info {}
- trace var x(1) u traceArray
+ trace add variable x(1) unset traceArray
unset x(1)
set info
-} {x 1 u 1 {can't read "x(1)": no such element in array}}
+} {x 1 unset 1 {can't read "x(1)": no such element in array}}
test trace-4.6 {trace unsets on array elements} {
catch {unset x}
set x(1) 18
set info {}
- trace var x(1) u traceArray
+ trace add variable x(1) unset traceArray
unset x
set info
-} {x 1 u 1 {can't read "x(1)": no such variable}}
+} {x 1 unset 1 {can't read "x(1)": no such variable}}
test trace-4.7 {trace unsets on whole arrays} {
catch {unset x}
set x(1) 18
set info {}
- trace var x u traceProc
+ trace add variable x unset traceProc
catch {unset x(0)}
set info
} {}
@@ -264,38 +307,98 @@ test trace-4.8 {trace unsets on whole arrays} {
set x(2) 144
set x(3) 14
set info {}
- trace var x u traceProc
+ trace add variable x unset traceProc
unset x(1)
set info
-} {x 1 u}
+} {x 1 unset}
test trace-4.9 {trace unsets on whole arrays} {
catch {unset x}
set x(1) 18
set x(2) 144
set x(3) 14
set info {}
- trace var x u traceProc
+ trace add variable x unset traceProc
unset x
set info
-} {x {} u}
+} {x {} unset}
+# Array tracing on variables
+test trace-5.1 {array traces fire on accesses via [array]} {
+ catch {unset x}
+ set x(b) 2
+ trace add variable x array traceArray2
+ set ::info {}
+ array set x {a 1}
+ set ::info
+} {x {} array}
+test trace-5.2 {array traces do not fire on normal accesses} {
+ catch {unset x}
+ set x(b) 2
+ trace add variable x array traceArray2
+ set ::info {}
+ set x(a) 1
+ set x(b) $x(a)
+ set ::info
+} {}
+test trace-5.3 {array traces do not outlive variable} {
+ catch {unset x}
+ trace add variable x array traceArray2
+ set ::info {}
+ set x(a) 1
+ unset x
+ array set x {a 1}
+ set ::info
+} {}
+test trace-5.4 {array traces properly listed in trace information} {
+ catch {unset x}
+ trace add variable x array traceArray2
+ set result [trace info variable x]
+ set result
+} [list [list array traceArray2]]
+test trace-5.5 {array traces properly listed in trace information} {
+ catch {unset x}
+ trace variable x a traceArray2
+ set result [trace vinfo x]
+ set result
+} [list [list a traceArray2]]
+test trace-5.6 {array traces don't fire on scalar variables} {
+ catch {unset x}
+ set x foo
+ trace add variable x array traceArray2
+ set ::info {}
+ catch {array set x {a 1}}
+ set ::info
+} {}
+test trace-5.7 {array traces fire for undefined variables} {
+ catch {unset x}
+ trace add variable x array traceArray2
+ set ::info {}
+ array set x {a 1}
+ set ::info
+} {x {} array}
+test trace-5.8 {array traces fire for undefined variables} {
+ catch {unset x}
+ trace add variable x array {set x(foo) 1 ;#}
+ set res "names: [array names x]"
+} {names: foo}
+
# Trace multiple trace types at once.
-test trace-5.1 {multiple ops traced at once} {
+test trace-6.1 {multiple ops traced at once} {
catch {unset x}
set info {}
- trace var x rwu traceProc
+ trace add variable x {read write unset} traceProc
catch {set x}
set x 22
set x
set x 33
unset x
set info
-} {x {} r x {} w x {} r x {} w x {} u}
-test trace-5.2 {multiple ops traced on array element} {
+} {x {} read x {} write x {} read x {} write x {} unset}
+test trace-6.2 {multiple ops traced on array element} {
catch {unset x}
set info {}
- trace var x(0) rwu traceProc
+ trace add variable x(0) {read write unset} traceProc
catch {set x(0)}
set x(0) 22
set x(0)
@@ -303,11 +406,11 @@ test trace-5.2 {multiple ops traced on array element} {
unset x(0)
unset x
set info
-} {x 0 r x 0 w x 0 r x 0 w x 0 u}
-test trace-5.3 {multiple ops traced on whole array} {
+} {x 0 read x 0 write x 0 read x 0 write x 0 unset}
+test trace-6.3 {multiple ops traced on whole array} {
catch {unset x}
set info {}
- trace var x rwu traceProc
+ trace add variable x {read write unset} traceProc
catch {set x(0)}
set x(0) 22
set x(0)
@@ -315,404 +418,487 @@ test trace-5.3 {multiple ops traced on whole array} {
unset x(0)
unset x
set info
-} {x 0 w x 0 r x 0 w x 0 u x {} u}
+} {x 0 write x 0 read x 0 write x 0 unset x {} unset}
# Check order of invocation of traces
-test trace-6.1 {order of invocation of traces} {
+test trace-7.1 {order of invocation of traces} {
catch {unset x}
set info {}
- trace var x r "traceTag 1"
- trace var x r "traceTag 2"
- trace var x r "traceTag 3"
+ trace add variable x read "traceTag 1"
+ trace add variable x read "traceTag 2"
+ trace add variable x read "traceTag 3"
catch {set x}
set x 22
set x
set info
} {3 2 1 3 2 1}
-test trace-6.2 {order of invocation of traces} {
+test trace-7.2 {order of invocation of traces} {
catch {unset x}
set x(0) 44
set info {}
- trace var x(0) r "traceTag 1"
- trace var x(0) r "traceTag 2"
- trace var x(0) r "traceTag 3"
+ trace add variable x(0) read "traceTag 1"
+ trace add variable x(0) read "traceTag 2"
+ trace add variable x(0) read "traceTag 3"
set x(0)
set info
} {3 2 1}
-test trace-6.3 {order of invocation of traces} {
+test trace-7.3 {order of invocation of traces} {
catch {unset x}
set x(0) 44
set info {}
- trace var x(0) r "traceTag 1"
- trace var x r "traceTag A1"
- trace var x(0) r "traceTag 2"
- trace var x r "traceTag A2"
- trace var x(0) r "traceTag 3"
- trace var x r "traceTag A3"
+ trace add variable x(0) read "traceTag 1"
+ trace add variable x read "traceTag A1"
+ trace add variable x(0) read "traceTag 2"
+ trace add variable x read "traceTag A2"
+ trace add variable x(0) read "traceTag 3"
+ trace add variable x read "traceTag A3"
set x(0)
set info
} {A3 A2 A1 3 2 1}
# Check effects of errors in trace procedures
-test trace-7.1 {error returns from traces} {
+test trace-8.1 {error returns from traces} {
catch {unset x}
set x 123
set info {}
- trace var x r "traceTag 1"
- trace var x r traceError
+ trace add variable x read "traceTag 1"
+ trace add variable x read traceError
list [catch {set x} msg] $msg $info
} {1 {can't read "x": trace returned error} {}}
-test trace-7.2 {error returns from traces} {
+test trace-8.2 {error returns from traces} {
catch {unset x}
set x 123
set info {}
- trace var x w "traceTag 1"
- trace var x w traceError
+ trace add variable x write "traceTag 1"
+ trace add variable x write traceError
list [catch {set x 44} msg] $msg $info
} {1 {can't set "x": trace returned error} {}}
-test trace-7.3 {error returns from traces} {
+test trace-8.3 {error returns from traces} {
catch {unset x}
set x 123
set info {}
- trace var x w traceError
+ trace add variable x write traceError
list [catch {append x 44} msg] $msg $info
} {1 {can't set "x": trace returned error} {}}
-test trace-7.4 {error returns from traces} {
+test trace-8.4 {error returns from traces} {
catch {unset x}
set x 123
set info {}
- trace var x u "traceTag 1"
- trace var x u traceError
+ trace add variable x unset "traceTag 1"
+ trace add variable x unset traceError
list [catch {unset x} msg] $msg $info
} {0 {} 1}
-test trace-7.5 {error returns from traces} {
+test trace-8.5 {error returns from traces} {
catch {unset x}
set x(0) 123
set info {}
- trace var x(0) r "traceTag 1"
- trace var x r "traceTag 2"
- trace var x r traceError
- trace var x r "traceTag 3"
+ trace add variable x(0) read "traceTag 1"
+ trace add variable x read "traceTag 2"
+ trace add variable x read traceError
+ trace add variable x read "traceTag 3"
list [catch {set x(0)} msg] $msg $info
} {1 {can't read "x(0)": trace returned error} 3}
-test trace-7.6 {error returns from traces} {
+test trace-8.6 {error returns from traces} {
catch {unset x}
set x 123
- trace var x u traceError
+ trace add variable x unset traceError
list [catch {unset x} msg] $msg
} {0 {}}
-test trace-7.7 {error returns from traces} {
+test trace-8.7 {error returns from traces} {
# This test just makes sure that the memory for the error message
# gets deallocated correctly when the trace is invoked again or
# when the trace is deleted.
catch {unset x}
set x 123
- trace var x r traceError
+ trace add variable x read traceError
catch {set x}
catch {set x}
- trace vdelete x r traceError
+ trace remove variable x read traceError
+} {}
+test trace-8.8 {error returns from traces} {
+ # Yet more elaborate memory corruption testing that checks nothing
+ # bad happens when the trace deletes itself and installs something
+ # new. Alas, there is no neat way to guarantee that this test will
+ # fail if there is a problem, but that's life and with the new code
+ # it should *never* fail.
+ #
+ # Adapted from Bug #219393 reported by Don Porter.
+ catch {rename ::foo {}}
+ proc foo {old args} {
+ trace remove variable ::x write [list foo $old]
+ trace add variable ::x write [list foo $::x]
+ error "foo"
+ }
+ catch {unset ::x ::y}
+ set x junk
+ trace add variable ::x write [list foo $x]
+ for {set y 0} {$y<100} {incr y} {
+ catch {set x junk}
+ }
+ unset x
} {}
# Check to see that variables are expunged before trace
# procedures are invoked, so trace procedure can even manipulate
# a new copy of the variables.
-test trace-8.1 {be sure variable is unset before trace is called} {
+test trace-9.1 {be sure variable is unset before trace is called} {
catch {unset x}
set x 33
set info {}
- trace var x u {traceCheck {uplevel set x}}
+ trace add variable x unset {traceCheck {uplevel set x}}
unset x
set info
} {1 {can't read "x": no such variable}}
-test trace-8.2 {be sure variable is unset before trace is called} {
+test trace-9.2 {be sure variable is unset before trace is called} {
catch {unset x}
set x 33
set info {}
- trace var x u {traceCheck {uplevel set x 22}}
+ trace add variable x unset {traceCheck {uplevel set x 22}}
unset x
concat $info [list [catch {set x} msg] $msg]
} {0 22 0 22}
-test trace-8.3 {be sure traces are cleared before unset trace called} {
+test trace-9.3 {be sure traces are cleared before unset trace called} {
catch {unset x}
set x 33
set info {}
- trace var x u {traceCheck {uplevel trace vinfo x}}
+ trace add variable x unset {traceCheck {uplevel trace info variable x}}
unset x
set info
} {0 {}}
-test trace-8.4 {set new trace during unset trace} {
+test trace-9.4 {set new trace during unset trace} {
catch {unset x}
set x 33
set info {}
- trace var x u {traceCheck {global x; trace var x u traceProc}}
+ trace add variable x unset {traceCheck {global x; trace add variable x unset traceProc}}
unset x
- concat $info [trace vinfo x]
-} {0 {} {u traceProc}}
+ concat $info [trace info variable x]
+} {0 {} {unset traceProc}}
-test trace-9.1 {make sure array elements are unset before traces are called} {
+test trace-10.1 {make sure array elements are unset before traces are called} {
catch {unset x}
set x(0) 33
set info {}
- trace var x(0) u {traceCheck {uplevel set x(0)}}
+ trace add variable x(0) unset {traceCheck {uplevel set x(0)}}
unset x(0)
set info
} {1 {can't read "x(0)": no such element in array}}
-test trace-9.2 {make sure array elements are unset before traces are called} {
+test trace-10.2 {make sure array elements are unset before traces are called} {
catch {unset x}
set x(0) 33
set info {}
- trace var x(0) u {traceCheck {uplevel set x(0) zzz}}
+ trace add variable x(0) unset {traceCheck {uplevel set x(0) zzz}}
unset x(0)
concat $info [list [catch {set x(0)} msg] $msg]
} {0 zzz 0 zzz}
-test trace-9.3 {array elements are unset before traces are called} {
+test trace-10.3 {array elements are unset before traces are called} {
catch {unset x}
set x(0) 33
set info {}
- trace var x(0) u {traceCheck {global x; trace vinfo x(0)}}
+ trace add variable x(0) unset {traceCheck {global x; trace info variable x(0)}}
unset x(0)
set info
} {0 {}}
-test trace-9.4 {set new array element trace during unset trace} {
+test trace-10.4 {set new array element trace during unset trace} {
catch {unset x}
set x(0) 33
set info {}
- trace var x(0) u {traceCheck {uplevel {trace variable x(0) r {}}}}
+ trace add variable x(0) unset {traceCheck {uplevel {trace add variable x(0) read {}}}}
catch {unset x(0)}
- concat $info [trace vinfo x(0)]
-} {0 {} {r {}}}
+ concat $info [trace info variable x(0)]
+} {0 {} {read {}}}
-test trace-10.1 {make sure arrays are unset before traces are called} {
+test trace-11.1 {make sure arrays are unset before traces are called} {
catch {unset x}
set x(0) 33
set info {}
- trace var x u {traceCheck {uplevel set x(0)}}
+ trace add variable x unset {traceCheck {uplevel set x(0)}}
unset x
set info
} {1 {can't read "x(0)": no such variable}}
-test trace-10.2 {make sure arrays are unset before traces are called} {
+test trace-11.2 {make sure arrays are unset before traces are called} {
catch {unset x}
set x(y) 33
set info {}
- trace var x u {traceCheck {uplevel set x(y) 22}}
+ trace add variable x unset {traceCheck {uplevel set x(y) 22}}
unset x
concat $info [list [catch {set x(y)} msg] $msg]
} {0 22 0 22}
-test trace-10.3 {make sure arrays are unset before traces are called} {
+test trace-11.3 {make sure arrays are unset before traces are called} {
catch {unset x}
set x(y) 33
set info {}
- trace var x u {traceCheck {uplevel array exists x}}
+ trace add variable x unset {traceCheck {uplevel array exists x}}
unset x
set info
} {0 0}
-test trace-10.4 {make sure arrays are unset before traces are called} {
+test trace-11.4 {make sure arrays are unset before traces are called} {
catch {unset x}
set x(y) 33
set info {}
- set cmd {traceCheck {uplevel {trace vinfo x}}}
- trace var x u $cmd
+ set cmd {traceCheck {uplevel {trace info variable x}}}
+ trace add variable x unset $cmd
unset x
set info
} {0 {}}
-test trace-10.5 {set new array trace during unset trace} {
+test trace-11.5 {set new array trace during unset trace} {
catch {unset x}
set x(y) 33
set info {}
- trace var x u {traceCheck {global x; trace var x r {}}}
+ trace add variable x unset {traceCheck {global x; trace add variable x read {}}}
unset x
- concat $info [trace vinfo x]
-} {0 {} {r {}}}
-test trace-10.6 {create scalar during array unset trace} {
+ concat $info [trace info variable x]
+} {0 {} {read {}}}
+test trace-11.6 {create scalar during array unset trace} {
catch {unset x}
set x(y) 33
set info {}
- trace var x u {traceCheck {global x; set x 44}}
+ trace add variable x unset {traceCheck {global x; set x 44}}
unset x
concat $info [list [catch {set x} msg] $msg]
} {0 44 0 44}
# Check special conditions (e.g. errors) in Tcl_TraceVar2.
-test trace-11.1 {creating array when setting variable traces} {
+test trace-12.1 {creating array when setting variable traces} {
catch {unset x}
set info {}
- trace var x(0) w traceProc
+ trace add variable x(0) write traceProc
list [catch {set x 22} msg] $msg
} {1 {can't set "x": variable is array}}
-test trace-11.2 {creating array when setting variable traces} {
+test trace-12.2 {creating array when setting variable traces} {
catch {unset x}
set info {}
- trace var x(0) w traceProc
+ trace add variable x(0) write traceProc
list [catch {set x(0)} msg] $msg
} {1 {can't read "x(0)": no such element in array}}
-test trace-11.3 {creating array when setting variable traces} {
+test trace-12.3 {creating array when setting variable traces} {
catch {unset x}
set info {}
- trace var x(0) w traceProc
+ trace add variable x(0) write traceProc
set x(0) 22
set info
-} {x 0 w}
-test trace-11.4 {creating variable when setting variable traces} {
+} {x 0 write}
+test trace-12.4 {creating variable when setting variable traces} {
catch {unset x}
set info {}
- trace var x w traceProc
+ trace add variable x write traceProc
list [catch {set x} msg] $msg
} {1 {can't read "x": no such variable}}
-test trace-11.5 {creating variable when setting variable traces} {
+test trace-12.5 {creating variable when setting variable traces} {
catch {unset x}
set info {}
- trace var x w traceProc
+ trace add variable x write traceProc
set x 22
set info
-} {x {} w}
-test trace-11.6 {creating variable when setting variable traces} {
+} {x {} write}
+test trace-12.6 {creating variable when setting variable traces} {
catch {unset x}
set info {}
- trace var x w traceProc
+ trace add variable x write traceProc
set x(0) 22
set info
-} {x 0 w}
-test trace-11.7 {create array element during read trace} {
+} {x 0 write}
+test trace-12.7 {create array element during read trace} {
catch {unset x}
set x(2) zzz
- trace var x r {traceCrtElement xyzzy}
+ trace add variable x read {traceCrtElement xyzzy}
list [catch {set x(3)} msg] $msg
} {0 xyzzy}
-test trace-11.8 {errors when setting variable traces} {
+test trace-12.8 {errors when setting variable traces} {
catch {unset x}
set x 44
- list [catch {trace var x(0) w traceProc} msg] $msg
+ list [catch {trace add variable x(0) write traceProc} msg] $msg
} {1 {can't trace "x(0)": variable isn't array}}
# Check deleting one trace from another.
-test trace-12.1 {delete one trace from another} {
+test trace-13.1 {delete one trace from another} {
proc delTraces {args} {
global x
- trace vdel x r {traceTag 2}
- trace vdel x r {traceTag 3}
- trace vdel x r {traceTag 4}
+ trace remove variable x read {traceTag 2}
+ trace remove variable x read {traceTag 3}
+ trace remove variable x read {traceTag 4}
}
catch {unset x}
set x 44
set info {}
- trace var x r {traceTag 1}
- trace var x r {traceTag 2}
- trace var x r {traceTag 3}
- trace var x r {traceTag 4}
- trace var x r delTraces
- trace var x r {traceTag 5}
+ trace add variable x read {traceTag 1}
+ trace add variable x read {traceTag 2}
+ trace add variable x read {traceTag 3}
+ trace add variable x read {traceTag 4}
+ trace add variable x read delTraces
+ trace add variable x read {traceTag 5}
set x
set info
} {5 1}
# Check operation and syntax of "trace" command.
-test trace-13.1 {trace command (overall)} {
+# Syntax for adding/removing variable and command traces is basically the
+# same:
+# trace add variable name opList command
+# trace remove variable name opList command
+#
+# The following loops just get all the common "wrong # args" tests done.
+
+set i 0
+set start "wrong # args:"
+foreach type {variable command} {
+ foreach op {add remove} {
+ test trace-14.0.[incr i] "trace command, wrong # args errors" {
+ list [catch {trace $op $type} msg] $msg
+ } [list 1 "$start should be \"trace $op $type name opList command\""]
+ test trace-14.0.[incr i] "trace command wrong # args errors" {
+ list [catch {trace $op $type foo} msg] $msg
+ } [list 1 "$start should be \"trace $op $type name opList command\""]
+ test trace-14.0.[incr i] "trace command, wrong # args errors" {
+ list [catch {trace $op $type foo bar} msg] $msg
+ } [list 1 "$start should be \"trace $op $type name opList command\""]
+ test trace-14.0.[incr i] "trace command, wrong # args errors" {
+ list [catch {trace $op $type foo bar baz boo} msg] $msg
+ } [list 1 "$start should be \"trace $op $type name opList command\""]
+ }
+ test trace-14.0.[incr i] "trace command, wrong # args errors" {
+ list [catch {trace info $type foo bar} msg] $msg
+ } [list 1 "$start should be \"trace info $type name\""]
+ test trace-14.0.[incr i] "trace command, wrong # args errors" {
+ list [catch {trace info $type} msg] $msg
+ } [list 1 "$start should be \"trace info $type name\""]
+}
+
+test trace-14.1 "trace command, wrong # args errors" {
list [catch {trace} msg] $msg
-} {1 {wrong # args: should be "trace option [arg arg ...]"}}
-test trace-13.2 {trace command (overall)} {
+} [list 1 "wrong # args: should be \"trace option ?arg arg ...?\""]
+test trace-14.2 "trace command, wrong # args errors" {
+ list [catch {trace add} msg] $msg
+} [list 1 "wrong # args: should be \"trace add type ?arg arg ...?\""]
+test trace-14.3 "trace command, wrong # args errors" {
+ list [catch {trace remove} msg] $msg
+} [list 1 "wrong # args: should be \"trace remove type ?arg 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 ?arg arg ...?\""]
+
+test trace-14.5 {trace command, invalid option} {
list [catch {trace gorp} msg] $msg
-} {1 {bad option "gorp": must be variable, vdelete, or vinfo}}
-test trace-13.3 {trace command ("variable" option)} {
+} [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\""]
+test trace-14.9 {trace command, "trace variable" errors} {
list [catch {trace variable x y} msg] $msg
-} {1 {wrong # args: should be "trace variable name ops command"}}
-test trace-13.4 {trace command ("variable" option)} {
- list [catch {trace var x y z z2} msg] $msg
-} {1 {wrong # args: should be "trace variable name ops command"}}
-test trace-13.5 {trace command ("variable" option)} {
- list [catch {trace var x y z} msg] $msg
-} {1 {bad operations "y": should be one or more of rwu}}
-test trace-13.6 {trace command ("vdelete" option)} {
- list [catch {trace vdelete x y} msg] $msg
-} {1 {wrong # args: should be "trace vdelete name ops command"}}
-test trace-13.7 {trace command ("vdelete" option)} {
- list [catch {trace vdelete x y z foo} msg] $msg
-} {1 {wrong # args: should be "trace vdelete name ops command"}}
-test trace-13.8 {trace command ("vdelete" option)} {
- list [catch {trace vdelete x y z} msg] $msg
-} {1 {bad operations "y": should be one or more of rwu}}
-test trace-13.9 {trace command ("vdelete" option)} {
- catch {unset x}
- set info {}
- trace var x w traceProc
- trace vdelete x w traceProc
+} [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"]
+
+
+test trace-14.9 {trace command ("remove variable" option)} {
+ catch {unset x}
+ set info {}
+ trace add variable x write traceProc
+ trace remove variable x write traceProc
} {}
-test trace-13.10 {trace command ("vdelete" option)} {
+test trace-14.10 {trace command ("remove variable" option)} {
catch {unset x}
set info {}
- trace var x w traceProc
- trace vdelete x w traceProc
+ trace add variable x write traceProc
+ trace remove variable x write traceProc
set x 12345
set info
} {}
-test trace-13.11 {trace command ("vdelete" option)} {
+test trace-14.11 {trace command ("remove variable" option)} {
catch {unset x}
set info {}
- trace var x w {traceTag 1}
- trace var x w traceProc
- trace var x w {traceTag 2}
+ trace add variable x write {traceTag 1}
+ trace add variable x write traceProc
+ trace add variable x write {traceTag 2}
set x yy
- trace vdelete x w traceProc
+ trace remove variable x write traceProc
set x 12345
- trace vdelete x w {traceTag 1}
+ trace remove variable x write {traceTag 1}
set x foo
- trace vdelete x w {traceTag 2}
+ trace remove variable x write {traceTag 2}
set x gorp
set info
-} {2 x {} w 1 2 1 2}
-test trace-13.12 {trace command ("vdelete" option)} {
+} {2 x {} write 1 2 1 2}
+test trace-14.12 {trace command ("remove variable" option)} {
catch {unset x}
set info {}
- trace var x w {traceTag 1}
- trace vdelete x w non_existent
+ trace add variable x write {traceTag 1}
+ trace remove variable x write non_existent
set x 12345
set info
} {1}
-test trace-13.13 {trace command ("vinfo" option)} {
- list [catch {trace vinfo} msg] $msg]
-} {1 {wrong # args: should be "trace vinfo name"]}}
-test trace-13.14 {trace command ("vinfo" option)} {
- list [catch {trace vinfo x y} msg] $msg]
-} {1 {wrong # args: should be "trace vinfo name"]}}
-test trace-13.15 {trace command ("vinfo" option)} {
- catch {unset x}
- trace var x w {traceTag 1}
- trace var x w traceProc
- trace var x w {traceTag 2}
- trace vinfo x
-} {{w {traceTag 2}} {w traceProc} {w {traceTag 1}}}
-test trace-13.16 {trace command ("vinfo" option)} {
- catch {unset x}
- trace vinfo x
+test trace-14.15 {trace command ("list variable" option)} {
+ catch {unset x}
+ trace add variable x write {traceTag 1}
+ trace add variable x write traceProc
+ trace add variable x write {traceTag 2}
+ trace info variable x
+} {{write {traceTag 2}} {write traceProc} {write {traceTag 1}}}
+test trace-14.16 {trace command ("list variable" option)} {
+ catch {unset x}
+ trace info variable x
} {}
-test trace-13.17 {trace command ("vinfo" option)} {
+test trace-14.17 {trace command ("list variable" option)} {
catch {unset x}
- trace vinfo x(0)
+ trace info variable x(0)
} {}
-test trace-13.18 {trace command ("vinfo" option)} {
+test trace-14.18 {trace command ("list variable" option)} {
catch {unset x}
set x 44
- trace vinfo x(0)
+ trace info variable x(0)
} {}
-test trace-13.19 {trace command ("vinfo" option)} {
+test trace-14.19 {trace command ("list variable" option)} {
catch {unset x}
set x 44
- trace var x w {traceTag 1}
- proc check {} {global x; trace vinfo x}
+ trace add variable x write {traceTag 1}
+ proc check {} {global x; trace info variable x}
check
-} {{w {traceTag 1}}}
+} {{write {traceTag 1}}}
# Check fancy trace commands (long ones, weird arguments, etc.)
-test trace-14.1 {long trace command} {
+test trace-15.1 {long trace command} {
catch {unset x}
set info {}
- trace var x w {traceTag {This is a very very long argument. It's \
+ trace add variable x write {traceTag {This is a very very long argument. It's \
designed to test out the facilities of TraceVarProc for dealing \
with such long arguments by malloc-ing space. One possibility \
is that space doesn't get freed properly. If this happens, then \
@@ -724,24 +910,24 @@ test trace-14.1 {long trace command} {
with such long arguments by malloc-ing space. One possibility \
is that space doesn't get freed properly. If this happens, then \
invoking this test over and over again will eventually leak memory.}
-test trace-14.2 {long trace command result to ignore} {
+test trace-15.2 {long trace command result to ignore} {
proc longResult {args} {return "quite a bit of text, designed to
generate a core leak if this command file is invoked over and over again
and memory isn't being recycled correctly"}
catch {unset x}
- trace var x w longResult
+ trace add variable x write longResult
set x 44
set x 5
set x abcde
} abcde
-test trace-14.3 {special list-handling in trace commands} {
+test trace-15.3 {special list-handling in trace commands} {
catch {unset "x y z"}
set "x y z(a\n\{)" 44
set info {}
- trace var "x y z(a\n\{)" w traceProc
+ trace add variable "x y z(a\n\{)" write traceProc
set "x y z(a\n\{)" 33
set info
-} "{x y z} a\\n\\{ w"
+} "{x y z} a\\n\\\{ write"
# Check for proper handling of unsets during traces.
@@ -765,202 +951,213 @@ proc traceAppend {string name1 name2 op} {
lappend info $string
}
-test trace-15.1 {unsets during read traces} {
+test trace-16.1 {unsets during read traces} {
catch {unset y}
set y 1234
set info {}
- trace var y r {traceUnset y}
- trace var y u {traceAppend unset}
+ trace add variable y read {traceUnset y}
+ trace add variable y unset {traceAppend unset}
lappend info [catch {set y} msg] $msg
} {unset 0 {} 1 {can't read "x": no such variable} 1 {can't read "y": no such variable}}
-test trace-15.2 {unsets during read traces} {
+test trace-16.2 {unsets during read traces} {
catch {unset y}
set y(0) 1234
set info {}
- trace var y(0) r {traceUnset y(0)}
+ trace add variable y(0) read {traceUnset y(0)}
lappend info [catch {set y(0)} msg] $msg
} {0 {} 1 {can't read "x": no such variable} 1 {can't read "y(0)": no such element in array}}
-test trace-15.3 {unsets during read traces} {
+test trace-16.3 {unsets during read traces} {
catch {unset y}
set y(0) 1234
set info {}
- trace var y(0) r {traceUnset y}
+ trace add variable y(0) read {traceUnset y}
lappend info [catch {set y(0)} msg] $msg
} {0 {} 1 {can't read "x": no such variable} 1 {can't read "y(0)": no such variable}}
-test trace-15.4 {unsets during read traces} {
+test trace-16.4 {unsets during read traces} {
catch {unset y}
set y 1234
set info {}
- trace var y r {traceReset y y}
+ trace add variable y read {traceReset y y}
lappend info [catch {set y} msg] $msg
} {0 {} 0 xyzzy 0 xyzzy}
-test trace-15.5 {unsets during read traces} {
+test trace-16.5 {unsets during read traces} {
catch {unset y}
set y(0) 1234
set info {}
- trace var y(0) r {traceReset y(0) y(0)}
+ trace add variable y(0) read {traceReset y(0) y(0)}
lappend info [catch {set y(0)} msg] $msg
} {0 {} 0 xyzzy 0 xyzzy}
-test trace-15.6 {unsets during read traces} {
+test trace-16.6 {unsets during read traces} {
catch {unset y}
set y(0) 1234
set info {}
- trace var y(0) r {traceReset y y(0)}
+ trace add variable y(0) read {traceReset y y(0)}
lappend info [catch {set y(0)} msg] $msg [catch {set y(0)} msg] $msg
} {0 {} 1 {can't set "y": upvar refers to element in deleted array} 1 {can't read "y(0)": no such variable} 1 {can't read "y(0)": no such variable}}
-test trace-15.7 {unsets during read traces} {
+test trace-16.7 {unsets during read traces} {
catch {unset y}
set y(0) 1234
set info {}
- trace var y(0) r {traceReset2 y y(0)}
+ trace add variable y(0) read {traceReset2 y y(0)}
lappend info [catch {set y(0)} msg] $msg [catch {set y(0)} msg] $msg
} {0 {} 0 xyzzy 1 {can't read "y(0)": no such element in array} 0 xyzzy}
-test trace-15.8 {unsets during write traces} {
+test trace-16.8 {unsets during write traces} {
catch {unset y}
set y 1234
set info {}
- trace var y w {traceUnset y}
- trace var y u {traceAppend unset}
+ trace add variable y write {traceUnset y}
+ trace add variable y unset {traceAppend unset}
lappend info [catch {set y xxx} msg] $msg
} {unset 0 {} 1 {can't read "x": no such variable} 0 {}}
-test trace-15.9 {unsets during write traces} {
+test trace-16.9 {unsets during write traces} {
catch {unset y}
set y(0) 1234
set info {}
- trace var y(0) w {traceUnset y(0)}
+ trace add variable y(0) write {traceUnset y(0)}
lappend info [catch {set y(0) xxx} msg] $msg
} {0 {} 1 {can't read "x": no such variable} 0 {}}
-test trace-15.10 {unsets during write traces} {
+test trace-16.10 {unsets during write traces} {
catch {unset y}
set y(0) 1234
set info {}
- trace var y(0) w {traceUnset y}
+ trace add variable y(0) write {traceUnset y}
lappend info [catch {set y(0) xxx} msg] $msg
} {0 {} 1 {can't read "x": no such variable} 0 {}}
-test trace-15.11 {unsets during write traces} {
+test trace-16.11 {unsets during write traces} {
catch {unset y}
set y 1234
set info {}
- trace var y w {traceReset y y}
+ trace add variable y write {traceReset y y}
lappend info [catch {set y xxx} msg] $msg
} {0 {} 0 xyzzy 0 xyzzy}
-test trace-15.12 {unsets during write traces} {
+test trace-16.12 {unsets during write traces} {
catch {unset y}
set y(0) 1234
set info {}
- trace var y(0) w {traceReset y(0) y(0)}
+ trace add variable y(0) write {traceReset y(0) y(0)}
lappend info [catch {set y(0) xxx} msg] $msg
} {0 {} 0 xyzzy 0 xyzzy}
-test trace-15.13 {unsets during write traces} {
+test trace-16.13 {unsets during write traces} {
catch {unset y}
set y(0) 1234
set info {}
- trace var y(0) w {traceReset y y(0)}
+ trace add variable y(0) write {traceReset y y(0)}
lappend info [catch {set y(0) xxx} msg] $msg [catch {set y(0)} msg] $msg
} {0 {} 1 {can't set "y": upvar refers to element in deleted array} 0 {} 1 {can't read "y(0)": no such variable}}
-test trace-15.14 {unsets during write traces} {
+test trace-16.14 {unsets during write traces} {
catch {unset y}
set y(0) 1234
set info {}
- trace var y(0) w {traceReset2 y y(0)}
+ trace add variable y(0) write {traceReset2 y y(0)}
lappend info [catch {set y(0) xxx} msg] $msg [catch {set y(0)} msg] $msg
} {0 {} 0 xyzzy 0 {} 0 xyzzy}
-test trace-15.15 {unsets during unset traces} {
+test trace-16.15 {unsets during unset traces} {
catch {unset y}
set y 1234
set info {}
- trace var y u {traceUnset y}
+ trace add variable y unset {traceUnset y}
lappend info [catch {unset y} msg] $msg [catch {set y} msg] $msg
} {1 {can't unset "x": no such variable} 1 {can't read "x": no such variable} 0 {} 1 {can't read "y": no such variable}}
-test trace-15.16 {unsets during unset traces} {
+test trace-16.16 {unsets during unset traces} {
catch {unset y}
set y(0) 1234
set info {}
- trace var y(0) u {traceUnset y(0)}
+ trace add variable y(0) unset {traceUnset y(0)}
lappend info [catch {unset y(0)} msg] $msg [catch {set y(0)} msg] $msg
} {1 {can't unset "x": no such variable} 1 {can't read "x": no such variable} 0 {} 1 {can't read "y(0)": no such element in array}}
-test trace-15.17 {unsets during unset traces} {
+test trace-16.17 {unsets during unset traces} {
catch {unset y}
set y(0) 1234
set info {}
- trace var y(0) u {traceUnset y}
+ trace add variable y(0) unset {traceUnset y}
lappend info [catch {unset y(0)} msg] $msg [catch {set y(0)} msg] $msg
} {0 {} 1 {can't read "x": no such variable} 0 {} 1 {can't read "y(0)": no such variable}}
-test trace-15.18 {unsets during unset traces} {
+test trace-16.18 {unsets during unset traces} {
catch {unset y}
set y 1234
set info {}
- trace var y u {traceReset2 y y}
+ trace add variable y unset {traceReset2 y y}
lappend info [catch {unset y} msg] $msg [catch {set y} msg] $msg
} {1 {can't unset "y": no such variable} 0 xyzzy 0 {} 0 xyzzy}
-test trace-15.19 {unsets during unset traces} {
+test trace-16.19 {unsets during unset traces} {
catch {unset y}
set y(0) 1234
set info {}
- trace var y(0) u {traceReset2 y(0) y(0)}
+ trace add variable y(0) unset {traceReset2 y(0) y(0)}
lappend info [catch {unset y(0)} msg] $msg [catch {set y(0)} msg] $msg
} {1 {can't unset "y(0)": no such element in array} 0 xyzzy 0 {} 0 xyzzy}
-test trace-15.20 {unsets during unset traces} {
+test trace-16.20 {unsets during unset traces} {
catch {unset y}
set y(0) 1234
set info {}
- trace var y(0) u {traceReset2 y y(0)}
+ trace add variable y(0) unset {traceReset2 y y(0)}
lappend info [catch {unset y(0)} msg] $msg [catch {set y(0)} msg] $msg
} {0 {} 0 xyzzy 0 {} 0 xyzzy}
-test trace-15.21 {unsets cancelling traces} {
+test trace-16.21 {unsets cancelling traces} {
catch {unset y}
set y 1234
set info {}
- trace var y r {traceAppend first}
- trace var y r {traceUnset y}
- trace var y r {traceAppend third}
- trace var y u {traceAppend unset}
+ trace add variable y read {traceAppend first}
+ trace add variable y read {traceUnset y}
+ trace add variable y read {traceAppend third}
+ trace add variable y unset {traceAppend unset}
lappend info [catch {set y} msg] $msg
} {third unset 0 {} 1 {can't read "x": no such variable} 1 {can't read "y": no such variable}}
-test trace-15.22 {unsets cancelling traces} {
+test trace-16.22 {unsets cancelling traces} {
catch {unset y}
set y(0) 1234
set info {}
- trace var y(0) r {traceAppend first}
- trace var y(0) r {traceUnset y}
- trace var y(0) r {traceAppend third}
- trace var y(0) u {traceAppend unset}
+ trace add variable y(0) read {traceAppend first}
+ trace add variable y(0) read {traceUnset y}
+ trace add variable y(0) read {traceAppend third}
+ trace add variable y(0) unset {traceAppend unset}
lappend info [catch {set y(0)} msg] $msg
} {third unset 0 {} 1 {can't read "x": no such variable} 1 {can't read "y(0)": no such variable}}
# Check various non-interference between traces and other things.
-test trace-16.1 {trace doesn't prevent unset errors} {
+test trace-17.1 {trace doesn't prevent unset errors} {
catch {unset x}
set info {}
- trace var x u {traceProc}
+ trace add variable x unset {traceProc}
list [catch {unset x} msg] $msg $info
-} {1 {can't unset "x": no such variable} {x {} u}}
-test trace-16.2 {traced variables must survive procedure exits} {
+} {1 {can't unset "x": no such variable} {x {} unset}}
+test trace-17.2 {traced variables must survive procedure exits} {
catch {unset x}
- proc p1 {} {global x; trace var x w traceProc}
+ proc p1 {} {global x; trace add variable x write traceProc}
p1
- trace vinfo x
-} {{w traceProc}}
-test trace-16.3 {traced variables must survive procedure exits} {
+ trace info variable x
+} {{write traceProc}}
+test trace-17.3 {traced variables must survive procedure exits} {
catch {unset x}
set info {}
- proc p1 {} {global x; trace var x w traceProc}
+ proc p1 {} {global x; trace add variable x write traceProc}
p1
set x 44
set info
-} {x {} w}
+} {x {} write}
# Be sure that procedure frames are released before unset traces
# are invoked.
-test trace-17.1 {unset traces on procedure returns} {
+test trace-18.1 {unset traces on procedure returns} {
proc p1 {x y} {set a 44; p2 14}
- proc p2 {z} {trace var z u {traceCheck {lsort [uplevel {info vars}]}}}
+ proc p2 {z} {trace add variable z unset {traceCheck {lsort [uplevel {info vars}]}}}
set info {}
p1 foo bar
set info
} {0 {a x y}}
+test trace-18.2 {namespace delete / trace vdelete combo} {
+ namespace eval ::foo {
+ variable x 123
+ }
+ proc p1 args {
+ trace vdelete ::foo::x u p1
+ }
+ trace variable ::foo::x u p1
+ namespace delete ::foo
+ info exists ::foo::x
+} 0
# Delete arrays when done, so they can be re-used as scalars
# elsewhere.
@@ -968,19 +1165,686 @@ test trace-17.1 {unset traces on procedure returns} {
catch {unset x}
catch {unset y}
-# cleanup
-::tcltest::cleanupTests
-return
+test trace-18.2 {trace add command (command existence)} {
+ # Just in case!
+ catch {rename nosuchname ""}
+ list [catch {trace add command nosuchname rename traceCommand} msg] $msg
+} {1 {unknown command "nosuchname"}}
+test trace-18.3 {trace add command (command existence in ns)} {
+ list [catch {trace add command nosuchns::nosuchname rename traceCommand} msg] $msg
+} {1 {unknown command "nosuchns::nosuchname"}}
+
+
+test trace-19.1 {trace add command (rename option)} {
+ proc foo {} {}
+ catch {rename bar {}}
+ trace add command foo rename traceCommand
+ rename foo bar
+ set info
+} {foo bar rename}
+test trace-19.2 {traces stick with renamed commands} {
+ proc foo {} {}
+ catch {rename bar {}}
+ trace add command foo rename traceCommand
+ rename foo bar
+ rename bar foo
+ set info
+} {bar foo rename}
+test trace-19.2.1 {trace add command rename trace exists} {
+ proc foo {} {}
+ trace add command foo rename traceCommand
+ trace info command foo
+} {{rename traceCommand}}
+test trace-19.3 {command rename traces don't fire on command deletion} {
+ proc foo {} {}
+ set info {}
+ trace add command foo rename traceCommand
+ rename foo {}
+ set info
+} {}
+test trace-19.4 {trace add command rename doesn't trace recreated commands} {
+ proc foo {} {}
+ catch {rename bar {}}
+ trace add command foo rename traceCommand
+ proc foo {} {}
+ rename foo bar
+ set info
+} {}
+test trace-19.5 {trace add command deleted removes traces} {
+ proc foo {} {}
+ trace add command foo rename traceCommand
+ proc foo {} {}
+ trace info command foo
+} {}
+
+namespace eval tc {}
+proc tc::tcfoo {} {}
+test trace-19.6 {trace add command rename in namespace} {
+ trace add command tc::tcfoo rename traceCommand
+ rename tc::tcfoo tc::tcbar
+ set info
+} {tc::tcfoo tc::tcbar rename}
+test trace-19.7 {trace add command rename in namespace back again} {
+ rename tc::tcbar tc::tcfoo
+ set info
+} {tc::tcbar tc::tcfoo rename}
+test trace-19.8 {trace add command rename in namespace to out of namespace} {
+ rename tc::tcfoo tcbar
+ set info
+} {tc::tcfoo tcbar rename}
+test trace-19.9 {trace add command rename back into namespace} {
+ rename tcbar tc::tcfoo
+ set info
+} {tcbar tc::tcfoo rename}
+test trace-19.10 {trace add command failed rename doesn't trigger trace} {
+ set info {}
+ proc foo {} {}
+ proc bar {} {}
+ trace add command foo {rename delete} traceCommand
+ catch {rename foo bar}
+ set info
+} {}
+catch {rename foo {}}
+catch {rename bar {}}
+
+# Make sure it exists again
+proc foo {} {}
+
+test trace-20.1 {trace add command (delete option)} {
+ trace add command foo delete traceCommand
+ rename foo ""
+ set info
+} {::foo {} delete}
+test trace-20.2 {trace add command delete doesn't trace recreated commands} {
+ set info {}
+ proc foo {} {}
+ rename foo ""
+ set info
+} {}
+test trace-20.2.1 {trace add command delete trace info} {
+ proc foo {} {}
+ trace add command foo delete traceCommand
+ trace info command foo
+} {{delete traceCommand}}
+test trace-20.3 {trace add command implicit delete} {
+ proc foo {} {}
+ trace add command foo delete traceCommand
+ proc foo {} {}
+ set info
+} {::foo {} delete}
+test trace-20.3.1 {trace add command delete trace info} {
+ proc foo {} {}
+ trace info command foo
+} {}
+test trace-20.4 {trace add command rename followed by delete} {
+ set infotemp {}
+ proc foo {} {}
+ trace add command foo {rename delete} traceCommand
+ rename foo bar
+ lappend infotemp $info
+ rename bar {}
+ lappend infotemp $info
+ set info $infotemp
+ unset infotemp
+ set info
+} {{foo bar rename} {::bar {} delete}}
+catch {rename foo {}}
+catch {rename bar {}}
+
+test trace-20.5 {trace add command rename and delete} {
+ set infotemp {}
+ set info {}
+ proc foo {} {}
+ trace add command foo {rename delete} traceCommand
+ rename foo bar
+ lappend infotemp $info
+ rename bar {}
+ lappend infotemp $info
+ set info $infotemp
+ unset infotemp
+ set info
+} {{foo bar rename} {::bar {} delete}}
+
+test trace-20.6 {trace add command rename and delete in subinterp} {
+ set tc [interp create]
+ foreach p {traceCommand} {
+ $tc eval [list proc $p [info args $p] [info body $p]]
+ }
+ $tc eval [list set infotemp {}]
+ $tc eval [list set info {}]
+ $tc eval [list proc foo {} {}]
+ $tc eval [list trace add command foo {rename delete} traceCommand]
+ $tc eval [list rename foo bar]
+ $tc eval {lappend infotemp $info}
+ $tc eval [list rename bar {}]
+ $tc eval {lappend infotemp $info}
+ $tc eval {set info $infotemp}
+ $tc eval [list unset infotemp]
+ set info [$tc eval [list set info]]
+ interp delete $tc
+ set info
+} {{foo bar rename} {::bar {} delete}}
+
+# I'd like it if this test could give 'foo {} d' as a result,
+# but interp deletion means there is no interp to evaluate
+# the trace in.
+test trace-20.7 {trace add command delete in subinterp while being deleted} {
+ set info {}
+ set tc [interp create]
+ interp alias $tc traceCommand {} traceCommand
+ $tc eval [list proc foo {} {}]
+ $tc eval [list trace add command foo {rename delete} traceCommand]
+ interp delete $tc
+ set info
+} {}
+
+proc traceDelete {cmd old new op} {
+ eval trace remove command $cmd [lindex [trace info command $cmd] 0]
+ global info
+ set info [list $old $new $op]
+}
+proc traceCmdrename {cmd old new op} {
+ rename $old someothername
+}
+proc traceCmddelete {cmd old new op} {
+ rename $old ""
+}
+test trace-20.8 {trace delete while trace is active} {
+ set info {}
+ proc foo {} {}
+ catch {rename bar {}}
+ trace add command foo {rename delete} [list traceDelete foo]
+ rename foo bar
+ list [set info] [trace info command bar]
+} {{foo bar rename} {}}
+
+test trace-20.9 {rename trace deletes command} {
+ set info {}
+ proc foo {} {}
+ catch {rename bar {}}
+ catch {rename someothername {}}
+ trace add command foo rename [list traceCmddelete foo]
+ rename foo bar
+ list [info commands foo] [info commands bar] [info commands someothername]
+} {{} {} {}}
+
+test trace-20.10 {rename trace renames command} {
+ set info {}
+ proc foo {} {}
+ catch {rename bar {}}
+ catch {rename someothername {}}
+ trace add command foo rename [list traceCmdrename foo]
+ rename foo bar
+ set info [list [info commands foo] [info commands bar] [info commands someothername]]
+ rename someothername {}
+ set info
+} {{} {} someothername}
+
+test trace-20.11 {delete trace deletes command} {
+ set info {}
+ proc foo {} {}
+ catch {rename bar {}}
+ catch {rename someothername {}}
+ trace add command foo delete [list traceCmddelete foo]
+ rename foo {}
+ list [info commands foo] [info commands bar] [info commands someothername]
+} {{} {} {}}
+
+test trace-20.12 {delete trace renames command} {
+ set info {}
+ proc foo {} {}
+ catch {rename bar {}}
+ catch {rename someothername {}}
+ trace add command foo delete [list traceCmdrename foo]
+ rename foo bar
+ rename bar {}
+ # None of these should exist.
+ list [info commands foo] [info commands bar] [info commands someothername]
+} {{} {} {}}
+
+proc foo {b} { set a $b }
+
+
+# Delete arrays when done, so they can be re-used as scalars
+# elsewhere.
+
+catch {unset x}
+catch {unset y}
+
+# 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"}}
+
+test trace-26.1 {trace targetCmd when invoked through an alias} {
+ proc foo {args} {
+ set b $args
+ }
+ set info {}
+ trace add execution foo enter [list traceExecute foo]
+ interp alias {} bar {} foo 1
+ bar 2
+ trace remove execution foo enter [list traceExecute foo]
+ set info
+} {{foo {foo 1 2} enter}}
+test trace-26.2 {trace targetCmd when invoked through an alias} {
+ proc foo {args} {
+ set b $args
+ }
+ set info {}
+ trace add execution foo enter [list traceExecute foo]
+ interp create child
+ interp alias child bar {} foo 1
+ child eval bar 2
+ interp delete child
+ trace remove execution foo enter [list traceExecute foo]
+ set info
+} {{foo {foo 1 2} enter}}
+
+test trace-27.1 {memory leak in rename trace (604609)} {
+ catch {rename bar {}}
+ proc foo {} {error foo}
+ trace add command foo rename {rename foo "" ;#}
+ rename foo bar
+ info commands 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