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# Tests that the stack size is big enough for the application.
#
# 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 © 1998-2000 Ajuba Solutions.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
if {"::tcltest" ni [namespace children]} {
package require tcltest 2.5
namespace import -force ::tcltest::*
}
# Note that a failure in this test may result in a crash of the executable.
test stack-1.1 {maxNestingDepth reached on infinite recursion} -body {
# do this in a sub process in case it segfaults
exec [interpreter] << {
proc recurse {} { recurse }
catch { recurse } rv
puts $rv
}
} -result {too many nested evaluations (infinite loop?)}
test stack-2.1 {maxNestingDepth reached on infinite recursion} -body {
# do this in a sub process in case it segfaults
exec [interpreter] << {
interp alias {} unknown {} notaknownproc
catch { unknown } msg
puts $msg
}
} -result {too many nested evaluations (infinite loop?)}
# Make sure that there is enough stack to run regexp even if we're
# close to the recursion limit. [Bug 947070] [Patch 746378]
test stack-3.1 {enough room for regexp near recursion limit} -body {
# do this in a sub process in case it segfaults
exec [interpreter] << {
interp recursionlimit {} 10000
set depth 0
proc a { max } {
if { [info level] < $max } {
set ::depth [info level]
a $max
} else {
regexp {^ ?} x
}
}
catch { a 10001 }
set depth2 $depth
puts [list [a $depth] [expr { $depth2 - $depth }]]
}
} -result {1 1}
# cleanup
::tcltest::cleanupTests
return
# Local Variables:
# mode: tcl
# End:
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