#! /usr/bin/env tclsh package require tcltest 2.2 namespace import ::tcltest::* testConstraint exec [llength [info commands exec]] testConstraint fcopy [llength [info commands fcopy]] testConstraint fileevent [llength [info commands fileevent]] testConstraint thread [ expr {0 == [catch {package require Thread 2.7-}]}] testConstraint notValgrind [expr {![testConstraint valgrind]}]