exec.test

tcl是工具命令语言

    list [catch {exec [interpreter] $path(sleep) 1 | [interpreter] $path(exit) 43 | [interpreter] $path(sleep) 1} msg] $msg
} {1 {child process exited abnormally}}
test exec-9.4 {commands returning errors} {exec stdio} {
    list [catch {exec [interpreter] $path(exit) 43 | [interpreter] $path(echo) "foo bar"} msg] $msg
} {1 {foo bar
child process exited abnormally}}
test exec-9.5 {commands returning errors} {exec stdio} {
    list [catch {exec gorp456 | [interpreter] echo a b c} msg] [string tolower $msg]
} {1 {couldn't execute "gorp456": no such file or directory}}
test exec-9.6 {commands returning errors} {exec} {
    list [catch {exec [interpreter] "$path(sh)" -c "\"$path(echo)\" error msg 1>&2"} msg] $msg
} {1 {error msg}}
test exec-9.7 {commands returning errors} {exec stdio} {
    list [catch {exec [interpreter] "$path(sh)" -c "\"$path(echo)\" error msg 1>&2" \
		     | [interpreter] "$path(sh)" -c "\"$path(echo)\" error msg 1>&2"} msg] $msg
} {1 {error msg
error msg}}

set path(err) [makeFile {} err]

test exec-9.8 {commands returning errors} {exec} {
    set f [open $path(err) w]
    puts $f {
	puts stdout out
	puts stderr err
    }
    close $f
    list [catch {exec [interpreter] $path(err)} msg] $msg
} {1 {out
err}}

# Errors in executing the Tcl command, as opposed to errors in the
# processes that are invoked.

test exec-10.1 {errors in exec invocation} {exec} {
    list [catch {exec} msg] $msg
} {1 {wrong # args: should be "exec ?switches? arg ?arg ...?"}}
test exec-10.2 {errors in exec invocation} {exec} {
    list [catch {exec | cat} msg] $msg
} {1 {illegal use of | or |& in command}}
test exec-10.3 {errors in exec invocation} {exec} {
    list [catch {exec cat |} msg] $msg
} {1 {illegal use of | or |& in command}}
test exec-10.4 {errors in exec invocation} {exec} {
    list [catch {exec cat | | cat} msg] $msg
} {1 {illegal use of | or |& in command}}
test exec-10.5 {errors in exec invocation} {exec} {
    list [catch {exec cat | |& cat} msg] $msg
} {1 {illegal use of | or |& in command}}
test exec-10.6 {errors in exec invocation} {exec} {
    list [catch {exec cat |&} msg] $msg
} {1 {illegal use of | or |& in command}}
test exec-10.7 {errors in exec invocation} {exec} {
    list [catch {exec cat <} msg] $msg
} {1 {can't specify "<" as last word in command}}
test exec-10.8 {errors in exec invocation} {exec} {
    list [catch {exec cat >} msg] $msg
} {1 {can't specify ">" as last word in command}}
test exec-10.9 {errors in exec invocation} {exec} {
    list [catch {exec cat <<} msg] $msg
} {1 {can't specify "<<" as last word in command}}
test exec-10.10 {errors in exec invocation} {exec} {
    list [catch {exec cat >>} msg] $msg
} {1 {can't specify ">>" as last word in command}}
test exec-10.11 {errors in exec invocation} {exec} {
    list [catch {exec cat >&} msg] $msg
} {1 {can't specify ">&" as last word in command}}
test exec-10.12 {errors in exec invocation} {exec} {
    list [catch {exec cat >>&} msg] $msg
} {1 {can't specify ">>&" as last word in command}}
test exec-10.13 {errors in exec invocation} {exec} {
    list [catch {exec cat >@} msg] $msg
} {1 {can't specify ">@" as last word in command}}
test exec-10.14 {errors in exec invocation} {exec} {
    list [catch {exec cat <@} msg] $msg
} {1 {can't specify "<@" as last word in command}}
test exec-10.15 {errors in exec invocation} {exec} {
    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} {exec} {
    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} {exec} {
    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 $path(gorp.file) w]
test exec-10.18 {errors in exec invocation} {exec} {
    list [catch {exec cat <@ $f} msg] $msg
} "1 {channel \"$f\" wasn't opened for reading}"
close $f
set f [open $path(gorp.file) r]
test exec-10.19 {errors in exec invocation} {exec} {
    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} {exec} {
    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} {exec} {
    list [catch {exec [interpreter] 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} {exec} {
    set x [lindex [time {exec [interpreter] $path(sleep) 2 &}] 0]
    expr $x<1000000
} 1
test exec-11.2 {commands in background} {exec} {
    list [catch {exec [interpreter] $path(echo) a &b} msg] $msg
} {0 {a &b}}
test exec-11.3 {commands in background} {exec} {
    llength [exec [interpreter] $path(sleep) 1 &]
} 1
test exec-11.4 {commands in background} {exec stdio} {
    llength [exec [interpreter] $path(sleep) 1 | [interpreter] $path(sleep) 1 | [interpreter] $path(sleep) 1 &]
} 3
test exec-11.5 {commands in background} {exec} {
    set f [open $path(gorp.file) w]
    puts $f [format { catch { exec [info nameofexecutable] {%s} foo & } } $path(echo)]
    close $f
    string compare "foo" [exec [interpreter] $path(gorp.file)]
} 0

# Make sure that background commands are properly reaped when
# they eventually die.

if { [set ::tcltest::testConstraints(exec)] } {
exec [interpreter] $path(sleep) 3
}
test exec-12.1 {reaping background processes} \
	{exec unixOnly nonPortable} {
    for {set i 0} {$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} \
	{exec 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} \
	{exec 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} {exec} {
    list [catch {exec [interpreter] $path(cat) < a/b/c} msg] [string tolower $errorCode]
} {1 {posix enoent {no such file or directory}}}
test exec-13.2 {setting errorCode variable} {exec} {
    list [catch {exec [interpreter] $path(cat) > a/b/c} msg] [string tolower $errorCode]
} {1 {posix enoent {no such file or directory}}}
test exec-13.3 {setting errorCode variable} {exec} {
    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} {
    exec -keepnewline [interpreter] $path(echo) foo
} "foo\n"
test exec-14.2 {-keepnewline switch} {exec} {
    list [catch {exec -keepnewline} msg] $msg
} {1 {wrong # args: should be "exec ?switches? arg ?arg ...?"}}
test exec-14.3 {unknown switch} {exec} {
    list [catch {exec -gorp} msg] $msg
} {1 {bad switch "-gorp": must be -keepnewline or --}}
test exec-14.4 {-- switch} {exec} {
    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} {
    exec [interpreter] "$path(echo)" "First line" > "$path(gorp.file)"
    list [exec [interpreter] "$path(sh)" -c "\"$path(echo)\" foo bar 1>&2" 2> "$path(gorp.file)"] \
	    [exec [interpreter] "$path(cat)" "$path(gorp.file)"]
} {{} {foo bar}}
test exec-15.2 {standard error redirection} {exec stdio} {
    list [exec [interpreter] "$path(sh)" -c "\"$path(echo)\" foo bar 1>&2" \
		| [interpreter] "$path(echo)" biz baz >$path(gorp.file) 2> "$path(gorp.file2)"] \
	    [exec [interpreter] "$path(cat)" "$path(gorp.file)"] \
	    [exec [interpreter] "$path(cat)" "$path(gorp.file2)"]
} {{} {biz baz} {foo bar}}
test exec-15.3 {standard error redirection} {exec stdio} {
    list [exec [interpreter] "$path(sh)" -c "\"$path(echo)\" foo bar 1>&2" \
	        | [interpreter] "$path(echo)" biz baz 2>$path(gorp.file) > "$path(gorp.file2)"] \
	    [exec [interpreter] "$path(cat)" "$path(gorp.file)"] \
	    [exec [interpreter] "$path(cat)" "$path(gorp.file2)"]
} {{} {foo bar} {biz baz}}
test exec-15.4 {standard error redirection} {exec} {
    set f [open "$path(gorp.file)" w]
    puts $f "Line 1"
    flush $f
    exec [interpreter] "$path(sh)" -c "\"$path(echo)\" foo bar 1>&2" 2>@ $f
    puts $f "Line 3"
    close $f
    exec [interpreter] "$path(cat)" "$path(gorp.file)"
} {Line 1
foo bar
Line 3}
test exec-15.5 {standard error redirection} {exec} {
    exec [interpreter] "$path(echo)" "First line" > "$path(gorp.file)"
    exec [interpreter] "$path(sh)" -c "\"$path(echo)\" foo bar 1>&2" 2>> "$path(gorp.file)"
    exec [interpreter] "$path(cat)" "$path(gorp.file)"
} {First line
foo bar}
test exec-15.6 {standard error redirection} {exec stdio} {
    exec [interpreter] "$path(sh)" -c "\"$path(echo)\" foo bar 1>&2" > "$path(gorp.file2)" 2> "$path(gorp.file)" \
	    >& "$path(gorp.file)" 2> "$path(gorp.file2)" | [interpreter] "$path(echo)" biz baz
    list [exec [interpreter] "$path(cat)" "$path(gorp.file)"] [exec [interpreter] "$path(cat)" "$path(gorp.file2)"]
} {{biz baz} {foo bar}}

test exec-16.1 {flush output before exec} {exec} {
    set f [open $path(gorp.file) w]
    puts $f "First line"
    exec [interpreter] $path(echo) "Second line" >@ $f
    puts $f "Third line"
    close $f
    exec [interpreter] $path(cat) $path(gorp.file)
} {First line
Second line
Third line}
test exec-16.2 {flush output before exec} {exec} {
    set f [open $path(gorp.file) w]
    puts $f "First line"
    exec [interpreter] << {puts stderr {Second line}} >&@ $f > $path(gorp.file2)
    puts $f "Third line"
    close $f
    exec [interpreter] $path(cat) $path(gorp.file)
} {First line
Second line
Third line}

set path(script) [makeFile {} script]

test exec-17.1 { inheriting standard I/O } {exec} {
    set f [open $path(script) w]
    puts $f [format {close stdout
	set f [open {%s} w]
	catch {exec [info nameofexecutable] {%s} foobar &}
	exec [info nameofexecutable] {%s} 2
	close $f
    } $path(gorp.file) $path(echo) $path(sleep)]
    close $f
    catch {exec [interpreter] $path(script)} result
    set f [open $path(gorp.file) r]
    lappend result [read $f]
    close $f
    set result
} {{foobar
}}

test exec-18.1 { exec cat deals with weird file names} {exec tempNotWin} {
    # This is cross-platform, but the cat isn't predictably correct on
    # Windows.
    set f "foo\[\{blah"
    set path(fooblah) [makeFile {} $f]
    set fout [open $path(fooblah) w]
    puts $fout "contents"
    close $fout
    set res [list [catch {exec cat $path(fooblah)} msg] $msg]
    removeFile $f
    set res
} {0 contents}

# cleanup

foreach file {script gorp.file gorp.file2 echo cat wc sh sleep exit err} {
    removeFile $file
}

::tcltest::cleanupTests
return