# Commands covered: exec # # 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) 1991-1994 The Regents of the University of California. # Copyright (c) 1994-1997 Sun Microsystems, Inc. # # See the file "license.terms" for information on usage and redistribution # of this file, and for a DISCLAIMER OF ALL WARRANTIES. # # RCS: @(#) $Id: exec.test,v 1.2 2001/09/14 01:43:36 zlaski Exp $ if {[string compare test [info procs test]] == 1} then {source defs} # If exec is not defined just return with no error # Some platforms like the Macintosh do not have the exec command if {[info commands exec] == ""} { puts "exec not implemented for this machine" return } if {$testConfig(stdio) == 0} { return } set f [open echo w] puts $f { puts -nonewline [lindex $argv 0] foreach str [lrange $argv 1 end] { puts -nonewline " $str" } puts {} } close $f set f [open cat w] puts $f { if {$argv == {}} { set argv - } foreach name $argv { if {$name == "-"} { set f stdin } elseif {[catch {open $name r} f] != 0} { puts stderr $f continue } while {[eof $f] == 0} { puts -nonewline [read $f] } if {$f != "stdin"} { close $f } } } close $f set f [open wc w] puts $f { set data [read stdin] set lines [regsub -all "\n" $data {} dummy] set words [regsub -all "\[^ \t\n]+" $data {} dummy] set chars [string length $data] puts [format "%8.d%8.d%8.d" $lines $words $chars] } close $f set f [open sh w] puts $f { if {[lindex $argv 0] != "-c"} { error "sh: unexpected arguments $argv" } set cmd [lindex $argv 1] lappend cmd ";" set newcmd {} foreach arg $cmd { if {$arg == ";"} { eval exec >@stdout 2>@stderr [list [info nameofexecutable]] $newcmd set newcmd {} continue } if {$arg == "1>&2"} { set arg >@stderr } lappend newcmd $arg } } close $f set f [open sleep w] puts $f { after [expr $argv*1000] } close $f set f [open exit w] puts $f { exit $argv } close $f # Basic operations. test exec-1.1 {basic exec operation} { exec $tcltest echo a b c } "a b c" test exec-1.2 {pipelining} { exec $tcltest echo a b c d | $tcltest cat | $tcltest cat } "a b c d" test exec-1.3 {pipelining} { set a [exec $tcltest echo a b c d | $tcltest cat | $tcltest wc] list [scan $a "%d %d %d" b c d] $b $c } {3 1 4} set arg {12345678901234567890123456789012345678901234567890} set arg "$arg$arg$arg$arg$arg$arg" test exec-1.4 {long command lines} { exec $tcltest echo $arg } $arg set arg {} # I/O redirection: input from Tcl command. test exec-2.1 {redirecting input from immediate source} { exec $tcltest cat << "Sample text" } {Sample text} test exec-2.2 {redirecting input from immediate source} { exec << "Sample text" $tcltest cat | $tcltest cat } {Sample text} test exec-2.3 {redirecting input from immediate source} { exec $tcltest cat << "Sample text" | $tcltest cat } {Sample text} test exec-2.4 {redirecting input from immediate source} { exec $tcltest cat | $tcltest cat << "Sample text" } {Sample text} test exec-2.5 {redirecting input from immediate source} { exec $tcltest cat "< gorp.file exec $tcltest cat gorp.file } "Some simple words" test exec-3.2 {redirecting output to file} { exec $tcltest echo "More simple words" | >gorp.file $tcltest cat | $tcltest cat exec $tcltest cat gorp.file } "More simple words" test exec-3.3 {redirecting output to file} { exec > gorp.file $tcltest echo "Different simple words" | $tcltest cat | $tcltest cat exec $tcltest cat gorp.file } "Different simple words" test exec-3.4 {redirecting output to file} { exec $tcltest echo "Some simple words" >gorp.file exec $tcltest cat gorp.file } "Some simple words" test exec-3.5 {redirecting output to file} { exec $tcltest echo "First line" >gorp.file exec $tcltest echo "Second line" >> gorp.file exec $tcltest cat gorp.file } "First line\nSecond line" test exec-3.6 {redirecting output to file} { exec $tcltest echo "First line" >gorp.file exec $tcltest echo "Second line" >>gorp.file exec $tcltest cat gorp.file } "First line\nSecond line" test exec-3.7 {redirecting output to file} { set f [open gorp.file w] puts $f "Line 1" flush $f exec $tcltest echo "More text" >@ $f exec $tcltest echo >@$f "Even more" puts $f "Line 3" close $f exec $tcltest cat gorp.file } "Line 1\nMore text\nEven more\nLine 3" # I/O redirection: output and stderr to file. file delete gorp.file test exec-4.1 {redirecting output and stderr to file} { exec $tcltest echo "test output" >& gorp.file exec $tcltest cat gorp.file } "test output" test exec-4.2 {redirecting output and stderr to file} { list [exec $tcltest sh -c "echo foo bar 1>&2" >&gorp.file] \ [exec $tcltest cat gorp.file] } {{} {foo bar}} test exec-4.3 {redirecting output and stderr to file} { exec $tcltest echo "first line" > gorp.file list [exec $tcltest sh -c "echo foo bar 1>&2" >>&gorp.file] \ [exec $tcltest cat gorp.file] } "{} {first line\nfoo bar}" test exec-4.4 {redirecting output and stderr to file} { set f [open gorp.file w] puts $f "Line 1" flush $f exec $tcltest echo "More text" >&@ $f exec $tcltest echo >&@$f "Even more" puts $f "Line 3" close $f exec $tcltest cat gorp.file } "Line 1\nMore text\nEven more\nLine 3" test exec-4.5 {redirecting output and stderr to file} { set f [open gorp.file w] puts $f "Line 1" flush $f exec >&@ $f $tcltest sh -c "echo foo bar 1>&2" exec >&@$f $tcltest sh -c "echo xyzzy 1>&2" puts $f "Line 3" close $f exec $tcltest cat gorp.file } "Line 1\nfoo bar\nxyzzy\nLine 3" # I/O redirection: input from file. exec $tcltest echo "Just a few thoughts" > gorp.file test exec-5.1 {redirecting input from file} { exec $tcltest cat < gorp.file } {Just a few thoughts} test exec-5.2 {redirecting input from file} { exec $tcltest cat | $tcltest cat < gorp.file } {Just a few thoughts} test exec-5.3 {redirecting input from file} { exec $tcltest cat < gorp.file | $tcltest cat } {Just a few thoughts} test exec-5.4 {redirecting input from file} { exec < gorp.file $tcltest cat | $tcltest cat } {Just a few thoughts} test exec-5.5 {redirecting input from file} { exec $tcltest cat &2" |& $tcltest cat } "foo bar" test exec-6.3 {redirecting stderr through a pipeline} { exec $tcltest sh -c "echo foo bar 1>&2" \ |& $tcltest sh -c "echo second msg 1>&2 ; cat" |& $tcltest cat } "second msg\nfoo bar" # I/O redirection: combinations. catch {exec rm -f gorp.file2} test exec-7.1 {multiple I/O redirections} { exec << "command input" > gorp.file2 $tcltest cat < gorp.file exec $tcltest cat gorp.file2 } {Just a few thoughts} test exec-7.2 {multiple I/O redirections} { exec < gorp.file << "command input" $tcltest cat } {command input} # Long input to command and output from command. set a "0123456789 xxxxxxxxx abcdefghi ABCDEFGHIJK\n" set a [concat $a $a $a $a] set a [concat $a $a $a $a] set a [concat $a $a $a $a] set a [concat $a $a $a $a] test exec-8.1 {long input and output} { exec $tcltest cat << $a } $a # Commands that return errors. test exec-9.1 {commands returning errors} { set x [catch {exec gorp456} msg] list $x [string tolower $msg] [string tolower $errorCode] } {1 {couldn't execute "gorp456": no such file or directory} {posix enoent {no such file or directory}}} test exec-9.2 {commands returning errors} { string tolower [list [catch {exec $tcltest echo foo | foo123} msg] $msg $errorCode] } {1 {couldn't execute "foo123": no such file or directory} {posix enoent {no such file or directory}}} test exec-9.3 {commands returning errors} { list [catch {exec $tcltest sleep 1 | $tcltest exit 43 | $tcltest sleep 1} msg] $msg } {1 {child process exited abnormally}} test exec-9.4 {commands returning errors} { list [catch {exec $tcltest exit 43 | $tcltest echo "foo bar"} msg] $msg } {1 {foo bar child process exited abnormally}} test exec-9.5 {commands returning errors} { list [catch {exec gorp456 | $tcltest echo a b c} msg] [string tolower $msg] } {1 {couldn't execute "gorp456": no such file or directory}} test exec-9.6 {commands returning errors} { list [catch {exec $tcltest sh -c "echo error msg 1>&2"} msg] $msg } {1 {error msg}} test exec-9.7 {commands returning errors} { list [catch {exec $tcltest sh -c "echo error msg 1>&2" \ | $tcltest sh -c "echo error msg 1>&2"} msg] $msg } {1 {error msg error msg}} # Errors in executing the Tcl command, as opposed to errors in the # processes that are invoked. test exec-10.1 {errors in exec invocation} { list [catch {exec} msg] $msg } {1 {wrong # args: should be "exec ?switches? arg ?arg ...?"}} test exec-10.2 {errors in exec invocation} { list [catch {exec | cat} msg] $msg } {1 {illegal use of | or |& in command}} test exec-10.3 {errors in exec invocation} { list [catch {exec cat |} msg] $msg } {1 {illegal use of | or |& in command}} test exec-10.4 {errors in exec invocation} { list [catch {exec cat | | cat} msg] $msg } {1 {illegal use of | or |& in command}} test exec-10.5 {errors in exec invocation} { list [catch {exec cat | |& cat} msg] $msg } {1 {illegal use of | or |& in command}} test exec-10.6 {errors in exec invocation} { list [catch {exec cat |&} msg] $msg } {1 {illegal use of | or |& in command}} test exec-10.7 {errors in exec invocation} { list [catch {exec cat <} msg] $msg } {1 {can't specify "<" as last word in command}} test exec-10.8 {errors in exec invocation} { list [catch {exec cat >} msg] $msg } {1 {can't specify ">" as last word in command}} test exec-10.9 {errors in exec invocation} { list [catch {exec cat <<} msg] $msg } {1 {can't specify "<<" as last word in command}} test exec-10.10 {errors in exec invocation} { list [catch {exec cat >>} msg] $msg } {1 {can't specify ">>" as last word in command}} test exec-10.11 {errors in exec invocation} { list [catch {exec cat >&} msg] $msg } {1 {can't specify ">&" as last word in command}} test exec-10.12 {errors in exec invocation} { list [catch {exec cat >>&} msg] $msg } {1 {can't specify ">>&" as last word in command}} test exec-10.13 {errors in exec invocation} { list [catch {exec cat >@} msg] $msg } {1 {can't specify ">@" as last word in command}} test exec-10.14 {errors in exec invocation} { list [catch {exec cat <@} msg] $msg } {1 {can't specify "<@" as last word in command}} test exec-10.15 {errors in exec invocation} { list [catch {exec cat < a/b/c} msg] [string tolower $msg] } {1 {couldn't read file "a/b/c": no such file or directory}} test exec-10.16 {errors in exec invocation} { list [catch {exec cat << foo > a/b/c} msg] [string tolower $msg] } {1 {couldn't write file "a/b/c": no such file or directory}} test exec-10.17 {errors in exec invocation} { list [catch {exec cat << foo > a/b/c} msg] [string tolower $msg] } {1 {couldn't write file "a/b/c": no such file or directory}} set f [open gorp.file w] test exec-10.18 {errors in exec invocation} { list [catch {exec cat <@ $f} msg] $msg } "1 {channel \"$f\" wasn't opened for reading}" close $f set f [open gorp.file r] test exec-10.19 {errors in exec invocation} { list [catch {exec cat >@ $f} msg] $msg } "1 {channel \"$f\" wasn't opened for writing}" close $f test exec-10.20 {errors in exec invocation} { list [catch {exec ~non_existent_user/foo/bar} msg] $msg } {1 {user "non_existent_user" doesn't exist}} test exec-10.21 {errors in exec invocation} { list [catch {exec $tcltest true | ~xyzzy_bad_user/x | false} msg] $msg } {1 {user "xyzzy_bad_user" doesn't exist}} # Commands in background. test exec-11.1 {commands in background} { set x [lindex [time {exec $tcltest sleep 2 &}] 0] expr $x<1000000 } 1 test exec-11.2 {commands in background} { list [catch {exec $tcltest echo a &b} msg] $msg } {0 {a &b}} test exec-11.3 {commands in background} { llength [exec $tcltest sleep 1 &] } 1 test exec-11.4 {commands in background} { llength [exec $tcltest sleep 1 | $tcltest sleep 1 | $tcltest sleep 1 &] } 3 test exec-11.5 {commands in background} { set f [open gorp.file w] puts $f { catch { exec [info nameofexecutable] echo foo & } } close $f string compare "foo" [exec $tcltest gorp.file] } 0 # Make sure that background commands are properly reaped when # they eventually die. exec $tcltest sleep 3 test exec-12.1 {reaping background processes} {unixOnly nonPortable} { for {set i 0} {$i < 20} {incr i} { exec echo foo > /dev/null & } exec sleep 1 catch {exec ps | fgrep "echo foo" | fgrep -v fgrep | wc} msg lindex $msg 0 } 0 test exec-12.2 {reaping background processes} {unixOnly nonPortable} { exec sleep 2 | sleep 2 | sleep 2 & catch {exec ps | fgrep -i "sleep" | fgrep -i -v fgrep | wc} msg set x [lindex $msg 0] exec sleep 3 catch {exec ps | fgrep -i "sleep" | fgrep -i -v fgrep | wc} msg list $x [lindex $msg 0] } {3 0} test exec-12.3 {reaping background processes} {unixOnly nonPortable} { exec sleep 1000 & exec sleep 1000 & set x [exec ps | fgrep "sleep" | fgrep -v fgrep] set pids {} foreach i [split $x \n] { lappend pids [lindex $i 0] } foreach i $pids { catch {exec kill -STOP $i} } catch {exec ps | fgrep "sleep" | fgrep -v fgrep | wc} msg set x [lindex $msg 0] foreach i $pids { catch {exec kill -KILL $i} } catch {exec ps | fgrep "sleep" | fgrep -v fgrep | wc} msg list $x [lindex $msg 0] } {2 0} # Make sure "errorCode" is set correctly. test exec-13.1 {setting errorCode variable} { list [catch {exec $tcltest cat < a/b/c} msg] [string tolower $errorCode] } {1 {posix enoent {no such file or directory}}} test exec-13.2 {setting errorCode variable} { list [catch {exec $tcltest cat > a/b/c} msg] [string tolower $errorCode] } {1 {posix enoent {no such file or directory}}} test exec-13.3 {setting errorCode variable} { set x [catch {exec _weird_cmd_} msg] list $x [string tolower $msg] [lindex $errorCode 0] \ [string tolower [lrange $errorCode 2 end]] } {1 {couldn't execute "_weird_cmd_": no such file or directory} POSIX {{no such file or directory}}} # Switches before the first argument test exec-14.1 {-keepnewline switch} { exec -keepnewline $tcltest echo foo } "foo\n" test exec-14.2 {-keepnewline switch} { list [catch {exec -keepnewline} msg] $msg } {1 {wrong # args: should be "exec ?switches? arg ?arg ...?"}} test exec-14.3 {unknown switch} { list [catch {exec -gorp} msg] $msg } {1 {bad switch "-gorp": must be -keepnewline or --}} test exec-14.4 {-- switch} { list [catch {exec -- -gorp} msg] [string tolower $msg] } {1 {couldn't execute "-gorp": no such file or directory}} # Redirecting standard error separately from standard output test exec-15.1 {standard error redirection} { exec $tcltest echo "First line" > gorp.file list [exec $tcltest sh -c "echo foo bar 1>&2" 2> gorp.file] \ [exec $tcltest cat gorp.file] } {{} {foo bar}} test exec-15.2 {standard error redirection} { list [exec $tcltest sh -c "echo foo bar 1>&2" \ | $tcltest echo biz baz >gorp.file 2> gorp.file2] \ [exec $tcltest cat gorp.file] \ [exec $tcltest cat gorp.file2] } {{} {biz baz} {foo bar}} test exec-15.3 {standard error redirection} { list [exec $tcltest sh -c "echo foo bar 1>&2" \ | $tcltest echo biz baz 2>gorp.file > gorp.file2] \ [exec $tcltest cat gorp.file] \ [exec $tcltest cat gorp.file2] } {{} {foo bar} {biz baz}} test exec-15.4 {standard error redirection} { set f [open gorp.file w] puts $f "Line 1" flush $f exec $tcltest sh -c "echo foo bar 1>&2" 2>@ $f puts $f "Line 3" close $f exec $tcltest cat gorp.file } {Line 1 foo bar Line 3} test exec-15.5 {standard error redirection} { exec $tcltest echo "First line" > gorp.file exec $tcltest sh -c "echo foo bar 1>&2" 2>> gorp.file exec $tcltest cat gorp.file } {First line foo bar} test exec-15.6 {standard error redirection} { exec $tcltest sh -c "echo foo bar 1>&2" > gorp.file2 2> gorp.file \ >& gorp.file 2> gorp.file2 | $tcltest echo biz baz list [exec $tcltest cat gorp.file] [exec $tcltest cat gorp.file2] } {{biz baz} {foo bar}} test exec-16.1 {flush output before exec} { set f [open gorp.file w] puts $f "First line" exec $tcltest echo "Second line" >@ $f puts $f "Third line" close $f exec $tcltest cat gorp.file } {First line Second line Third line} test exec-16.2 {flush output before exec} {} { set f [open gorp.file w] puts $f "First line" exec $tcltest << {puts stderr {Second line}} >&@ $f > gorp.file2 puts $f "Third line" close $f exec $tcltest cat gorp.file } {First line Second line Third line} test exec-17.1 { inheriting standard I/O } { set f [open script w] puts $f {close stdout set f [open gorp.file w] catch {exec [info nameofexecutable] echo foobar &} exec [info nameofexecutable] sleep 2 close $f } close $f catch {exec $tcltest script} result set f [open gorp.file r] lappend result [read $f] close $f set result } {{foobar }} file delete script gorp.file gorp.file2 file delete echo cat wc sh sleep exit