# The file tests the functions in the tclUnixInit.c file.
#
# 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) 1997 by Sun Microsystems, Inc.
# Copyright (c) 1998-1999 by Scriptics Corporation.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# RCS: @(#) $Id: unixInit.test,v 1.23 2001/08/27 02:14:08 dgp Exp $

if {[lsearch [namespace children] ::tcltest] == -1} {
    package require tcltest
    namespace import -force ::tcltest::*
}

set ::tcltest::testConstraints(notInstalledInTmp) \
	[string match /tmp/lib/* [info library]]
if {[info exists env(TCL_LIBRARY)]} {
    set oldlibrary $env(TCL_LIBRARY)
    unset env(TCL_LIBRARY)
}
catch {set oldlang $env(LANG)}
set env(LANG) C

# Some tests will fail if they are run on a machine that doesn't have
# this Tcl version installed (as opposed to built) on it.
if {[catch {
    set f [open "|[list $::tcltest::tcltest]" w+]
    exec kill -PIPE [pid $f]
    close $f
} msg]} {
    set ::tcltest::testConstraints(installedTcl) 0
} else {
    set ::tcltest::testConstraints(installedTcl) 1
}

test unixInit-1.1 {TclpInitPlatform: ignore SIGPIPE} {unixOnly installedTcl} {
    set x {}

    # Watch out for a race condition here.  If tcltest is too slow to start
    # then we'll kill it before it has a chance to set up its signal handler.
    
    set f [open "|[list $::tcltest::tcltest]" w+]
    puts $f "puts hi"
    flush $f
    gets $f
    exec kill -PIPE [pid $f]
    lappend x [catch {close $f}]

    set f [open "|[list $::tcltest::tcltest]" w+]
    puts $f "puts hi"
    flush $f
    gets $f
    exec kill [pid $f]
    lappend x [catch {close $f}]

    set x
} {0 1}

# This test is really a test of code in tclUnixChan.c, but the
# channels are set up as part of initialisation of the interpreter so
# the test seems to me to fit here as well as anywhere else.
test unixInit-1.2 {initialisation: standard channel type deduction} {unixOnly installedTcl} {
    # pipe1 is a connection to a server that reports what port it
    # starts on, and delivers a constant string to the first client to
    # connect to that port before exiting.
    set pipe1 [open "|[list $::tcltest::tcltest]" r+]
    puts $pipe1 {
	proc accept {channel host port} {
	    puts $channel {puts [fconfigure stdin -peername]; exit}
	    close $channel
	    exit
	}
	puts [fconfigure [socket -server accept 0] -sockname]
	vwait forever \
	    }
    # Note the backslash above; this is important to make sure that the
    # whole string is read before an [exit] can happen...
    flush $pipe1
    set port [lindex [gets $pipe1] 2]
    set sock [socket localhost $port]
    # pipe2 is a connection to a Tcl interpreter that takes its orders
    # from the socket we hand it (i.e. the server we create above.)
    # These orders will tell it to print out the details about the
    # socket it is taking instructions from, hopefully identifying it
    # as a socket.  Which is what this test is all about.
    set pipe2 [open "|[list $::tcltest::tcltest <@$sock]" r]
    set result [gets $pipe2]

    # Clear any pending data; stops certain kinds of (non-important) errors
    fconfigure $pipe1 -blocking 0; gets $pipe1
    fconfigure $pipe2 -blocking 0; gets $pipe2

    # Close the pipes and the socket.
    close $pipe2
    close $pipe1
    catch {close $sock}

    # Can't use normal comparison, as hostname varies due to some
    # installations having a messed up /etc/hosts file.
    if {
	[string equal 127.0.0.1 [lindex $result 0]] &&
	[string equal $port     [lindex $result 2]]
    } then {
	subst "OK"
    } else {
	subst "Expected: `[list 127.0.0.1 localhost $port]', Got `$result'"
    }
} {OK}

proc getlibpath "{program [list $::tcltest::tcltest]}" {
    set f [open "|$program" w+]
    fconfigure $f -buffering none
    puts $f {puts $tcl_libPath; exit}
    set path [gets $f]
    close $f
    return $path
}

# Some tests require the testgetdefenc command

set ::tcltest::testConstraints(testgetdefenc) \
	[expr {[info commands testgetdefenc] != {}}]

test unixInit-2.0 {TclpInitLibraryPath: setting tclDefaultEncodingDir} \
	{unixOnly testgetdefenc} {
    set origDir [testgetdefenc]
    testsetdefenc slappy
    set path [testgetdefenc]
    testsetdefenc $origDir
    set path
} {slappy}
test unixInit-2.1 {TclpInitLibraryPath: value of installLib, developLib} \
	{unixOnly installedTcl} {
    set path [getlibpath]

    set installLib lib/tcl[info tclversion]
    set developLib tcl[info patchlevel]/library
    set prefix [file dirname [file dirname $::tcltest::tcltest]]

    set x {}
    lappend x [string compare [lindex $path 0] $prefix/$installLib]
    lappend x [string compare [lindex $path 4] [file dirname $prefix]/$developLib]
    set x
} {0 0}
test unixInit-2.2 {TclpInitLibraryPath: TCL_LIBRARY} {unixOnly installedTcl} {
    # ((str != NULL) && (str[0] != '\0')) 

    set env(TCL_LIBRARY) sparkly
    set path [getlibpath]
    unset env(TCL_LIBRARY)

    lindex $path 0
} "sparkly"
test unixInit-2.3 {TclpInitLibraryPath: TCL_LIBRARY wrong version} \
	{unixOnly installedTcl} {
    # ((pathc > 0) && (strcasecmp(installLib + 4, pathv[pathc - 1]) != 0))

    set env(TCL_LIBRARY) /a/b/tcl1.7
    set path [getlibpath]
    unset env(TCL_LIBRARY)

    lrange $path 0 1
} [list /a/b/tcl1.7 /a/b/tcl[info tclversion]]
test unixInit-2.4 {TclpInitLibraryPath: TCL_LIBRARY: INTL} \
	{unixOnly installedTcl} {
    # Child process translates env variable from native encoding.

    set env(TCL_LIBRARY) "\xa7"
    set x [lindex [getlibpath] 0]
    unset env(TCL_LIBRARY)
    unset env(LANG)

    set x
} "\xa7"
test unixInit-2.5 {TclpInitLibraryPath: compiled-in library path} \
	{emptyTest unixOnly} {
    # cannot test
} {}
test unixInit-2.6 {TclpInitLibraryPath: executable relative} \
	{unixOnly installedTcl} {
    file delete -force /tmp/sparkly
    file mkdir /tmp/sparkly/bin
    file copy $::tcltest::tcltest /tmp/sparkly/bin/tcltest

    file mkdir /tmp/sparkly/lib/tcl[info tclversion]
    close [open /tmp/sparkly/lib/tcl[info tclversion]/init.tcl w]

    set x [lrange [getlibpath /tmp/sparkly/bin/tcltest] 0 1]
    file delete -force /tmp/sparkly
    set x
} [list /tmp/sparkly/lib/tcl[info tclversion] /tmp/lib/tcl[info tclversion]]
test unixInit-2.7 {TclpInitLibraryPath: compiled-in library path} \
	{emptyTest unixOnly} {
    # would need test command to get defaultLibDir and compare it to
    # [lindex $auto_path end]
} {}
test unixInit-2.8 {TclpInitLibraryPath: all absolute pathtype} {unixOnly notInstalledInTmp} {
    # Checking for Bug 219416
    # When a program that embeds the Tcl library, like tcltest, is
    # installed near the "root" of the file system, there was a problem
    # constructing directories relative to the executable.  When a 
    # relative ".." went past the root, relative path names were created
    # rather than absolute pathnames.  In some cases, accessing past the
    # root caused memory access violations too.
    #
    # The bug is now fixed, but here we check for it by making sure that
    # the directories constructed relative to the executable are all
    # absolute pathnames, even when the executable is installed near
    # the root of the filesystem.
    #
    # The only directory near the root we are likely to have write access
    # to is /tmp.
    file delete -force /tmp/sparkly
    file delete -force /tmp/lib/tcl[info tclversion]
    file mkdir /tmp/sparkly
    file copy $::tcltest::tcltest /tmp/sparkly/tcltest

    # Keep any existing /tmp/lib directory
    set deletelib 1
    if {[file exists /tmp/lib]} {
	if {[file isdirectory /tmp/lib]} {
	    set deletelib 0
	} else {
	    file delete -force /tmp/lib
	}
    }

    # For a successful Tcl_Init, we need a [source]-able init.tcl in
    # ../lib/tcl$version relative to the executable.
    file mkdir /tmp/lib/tcl[info tclversion]
    close [open /tmp/lib/tcl[info tclversion]/init.tcl w]

    # Check that all directories in the library path are absolute pathnames
    set allAbsolute 1
    foreach dir [getlibpath /tmp/sparkly/tcltest] {
	set allAbsolute [expr {$allAbsolute \
		&& [string equal absolute [file pathtype $dir]]}]
    }

    # Clean up temporary installation
    file delete -force /tmp/sparkly
    file delete -force /tmp/lib/tcl[info tclversion]
    if {$deletelib} {file delete -force /tmp/lib}
    set allAbsolute
} 1
test unixInit-2.9 {TclpInitLibraryPath: paths relative to executable} {
	unixOnly} {
    # Checking for Bug 438014
    file delete -force /tmp/sparkly
    file delete -force /tmp/library
    file mkdir /tmp/sparkly
    file copy $::tcltest::tcltest /tmp/sparkly/tcltest

    file mkdir /tmp/library/
    close [open /tmp/library/init.tcl w]

    set x [lrange [getlibpath /tmp/sparkly/tcltest] 0 4]

    file delete -force /tmp/sparkly
    file delete -force /tmp/library
    set x
} [list /tmp/lib/tcl[info tclversion] /lib/tcl[info tclversion] \
        /tmp/library /library /tcl[info patchlevel]/library]
test unixInit-3.1 {TclpSetInitialEncodings} {unixOnly installedTcl} {
    set env(LANG) C

    set f [open "|[list $::tcltest::tcltest]" w+]
    fconfigure $f -buffering none
    puts $f {puts [encoding system]; exit}
    set enc [gets $f]
    close $f
    unset env(LANG)

    set enc
} {iso8859-1}
test unixInit-3.2 {TclpSetInitialEncodings} {unixOnly installedTcl} {
    set env(LANG) japanese
    catch {set oldlc_all $env(LC_ALL)}
    set env(LC_ALL) japanese

    set f [open "|[list $::tcltest::tcltest]" w+]
    fconfigure $f -buffering none
    puts $f {puts [encoding system]; exit}
    set enc [gets $f]
    close $f
    unset env(LANG)
    unset env(LC_ALL)
    catch {set env(LC_ALL) $oldlc_all}

    switch $tcl_platform(os) {
	HP-UX {set expectedEncoding shiftjis}
	default {set expectedEncoding euc-jp}
    }
    string compare $enc $expectedEncoding
} 0
    
test unixInit-4.1 {TclpSetVariables} {unixOnly} {
    # just make sure they exist

    set a [list $tcl_library $tcl_pkgPath $tcl_platform(os)]
    set a [list $tcl_platform(osVersion) $tcl_platform(machine)]
    set tcl_platform(platform)
} "unix"

test unixInit-5.1 {Tcl_Init} {emptyTest unixOnly} {
    # test initScript
} {}

test unixInit-6.1 {Tcl_SourceRCFile} {emptyTest unixOnly} {
} {}

# cleanup
if {[info exists oldlibrary]} {
    set env(TCL_LIBRARY) $oldlibrary
}
catch {unset env(LANG); set env(LANG) $oldlang}
::tcltest::cleanupTests
return