perl/dist/PathTools/t/cwd.t

295 lines
9.3 KiB
Perl

#!./perl -w
use strict;
use Cwd;
chdir 't';
@INC = '../../../lib' if $ENV{PERL_CORE};
use Config;
use File::Spec;
use File::Path;
use Errno qw(EACCES);
use lib File::Spec->catdir('t', 'lib');
use Test::More;
my $IsVMS = $^O eq 'VMS';
my $vms_unix_rpt = 0;
my $vms_efs = 0;
my $vms_mode = 0;
if ($IsVMS) {
require VMS::Filespec;
use Carp;
use Carp::Heavy;
$vms_mode = 1;
if (eval 'require VMS::Feature') {
$vms_unix_rpt = VMS::Feature::current("filename_unix_report");
$vms_efs = VMS::Feature::current("efs_charset");
} else {
my $unix_rpt = $ENV{'DECC$FILENAME_UNIX_REPORT'} || '';
my $efs_charset = $ENV{'DECC$EFS_CHARSET'} || '';
$vms_unix_rpt = $unix_rpt =~ /^[ET1]/i;
$vms_efs = $efs_charset =~ /^[ET1]/i;
}
$vms_mode = 0 if ($vms_unix_rpt);
}
my $tests = 31;
# _perl_abs_path() currently only works when the directory separator
# is '/', so don't test it when it won't work.
my $EXTRA_ABSPATH_TESTS = ($Config{prefix} =~ m/\//) && $^O ne 'cygwin';
$tests += 4 if $EXTRA_ABSPATH_TESTS;
plan tests => $tests;
SKIP: {
skip "no need to check for blib/ in the core", 1 if $ENV{PERL_CORE};
like $INC{'Cwd.pm'}, qr{blib}i, "Cwd should be loaded from blib/ during testing";
}
# check imports
can_ok('main', qw(cwd getcwd fastcwd fastgetcwd));
ok( !defined(&chdir), 'chdir() not exported by default' );
ok( !defined(&abs_path), ' nor abs_path()' );
ok( !defined(&fast_abs_path), ' nor fast_abs_path()');
{
my @fields = qw(PATH IFS CDPATH ENV BASH_ENV);
my $before = grep exists $ENV{$_}, @fields;
cwd();
my $after = grep exists $ENV{$_}, @fields;
is($before, $after, "cwd() shouldn't create spurious entries in %ENV");
}
# XXX force Cwd to bootstrap its XSUBs since we have set @INC = "../lib"
# XXX and subsequent chdir()s can make them impossible to find
eval { fastcwd };
# Must find an external pwd (or equivalent) command.
my $pwd = $^O eq 'MSWin32' ? "cmd" : "pwd";
my $pwd_cmd =
($^O eq "NetWare") ?
"cd" :
(grep { -x && -f } map { "$_/$pwd$Config{exe_ext}" }
split m/$Config{path_sep}/, $ENV{PATH})[0];
$pwd_cmd = 'SHOW DEFAULT' if $IsVMS;
if ($^O eq 'MSWin32') {
$pwd_cmd =~ s,/,\\,g;
$pwd_cmd = "$pwd_cmd /c cd";
}
$pwd_cmd =~ s=\\=/=g if ($^O eq 'dos');
SKIP: {
skip "No native pwd command found to test against", 4 unless $pwd_cmd;
print "# native pwd = '$pwd_cmd'\n";
local @ENV{qw(PATH IFS CDPATH ENV BASH_ENV)};
my ($pwd_cmd_untainted) = $pwd_cmd =~ /^(.+)$/; # Untaint.
chomp(my $start = `$pwd_cmd_untainted`);
# Win32's cd returns native C:\ style
$start =~ s,\\,/,g if ($^O eq 'MSWin32' || $^O eq "NetWare");
if ($IsVMS) {
# DCL SHOW DEFAULT has leading spaces
$start =~ s/^\s+//;
# When in UNIX report mode, need to convert to compare it.
if ($vms_unix_rpt) {
$start = VMS::Filespec::unixpath($start);
# Remove trailing slash.
$start =~ s#/$##;
}
}
SKIP: {
skip("'$pwd_cmd' failed, nothing to test against", 4) if $?;
skip("/afs seen, paths unlikely to match", 4) if $start =~ m|/afs/|;
# Darwin's getcwd(3) (which Cwd.xs:bsd_realpath() uses which
# Cwd.pm:getcwd uses) has some magic related to the PWD
# environment variable: if PWD is set to a directory that
# looks about right (guess: has the same (dev,ino) as the '.'?),
# the PWD is returned. However, if that path contains
# symlinks, the path will not be equal to the one returned by
# /bin/pwd (which probably uses the usual walking upwards in
# the path -trick). This situation is easy to reproduce since
# /tmp is a symlink to /private/tmp. Therefore we invalidate
# the PWD to force getcwd(3) to (re)compute the cwd in full.
# Admittedly fixing this in the Cwd module would be better
# long-term solution but deleting $ENV{PWD} should not be
# done light-heartedly. --jhi
delete $ENV{PWD} if $^O eq 'darwin';
my $cwd = cwd;
my $getcwd = getcwd;
my $fastcwd = fastcwd;
my $fastgetcwd = fastgetcwd;
is($cwd, $start, 'cwd()');
is($getcwd, $start, 'getcwd()');
is($fastcwd, $start, 'fastcwd()');
is($fastgetcwd, $start, 'fastgetcwd()');
}
}
my @test_dirs = qw{_ptrslt_ _path_ _to_ _a_ _dir_};
my $Test_Dir = File::Spec->catdir(@test_dirs);
mkpath([$Test_Dir], 0, 0777);
Cwd::chdir $Test_Dir;
foreach my $func (qw(cwd getcwd fastcwd fastgetcwd)) {
my $result = eval "$func()";
is $@, '', "No exception for ${func}() in string eval";
dir_ends_with( $result, $Test_Dir, "$func()" );
}
{
# Some versions of File::Path (e.g. that shipped with perl 5.8.5)
# call getcwd() with an argument (perhaps by calling it as a
# method?), so make sure that doesn't die.
is getcwd(), getcwd('foo'), "Call getcwd() with an argument";
}
# Cwd::chdir should also update $ENV{PWD}
dir_ends_with( $ENV{PWD}, $Test_Dir, 'Cwd::chdir() updates $ENV{PWD}' );
my $updir = File::Spec->updir;
for (1..@test_dirs) {
Cwd::chdir $updir;
print "#$ENV{PWD}\n";
}
rmtree($test_dirs[0], 0, 0);
{
my $check = ($vms_mode ? qr|\b((?i)t)\]$| :
qr|\bt$| );
like($ENV{PWD}, $check, "We're in a 't' directory");
}
{
# Make sure abs_path() doesn't trample $ENV{PWD}
my $start_pwd = $ENV{PWD};
mkpath([$Test_Dir], 0, 0777);
Cwd::abs_path($Test_Dir);
is $ENV{PWD}, $start_pwd, "abs_path() does not trample \$ENV{PWD}";
rmtree($test_dirs[0], 0, 0);
}
SKIP: {
skip "no symlinks on this platform", 2+$EXTRA_ABSPATH_TESTS unless $Config{d_symlink} && $^O !~ m!^(qnx|nto)!;
my $file = "linktest";
mkpath([$Test_Dir], 0, 0777);
symlink $Test_Dir, $file;
my $abs_path = Cwd::abs_path($file);
my $fast_abs_path = Cwd::fast_abs_path($file);
my $pas = Cwd::_perl_abs_path($file);
my $want = quotemeta(
File::Spec->rel2abs( $Test_Dir )
);
if ($^O eq 'VMS') {
# Not easy to predict the physical volume name
$want = $ENV{PERL_CORE} ? $Test_Dir : File::Spec->catdir('t', $Test_Dir);
# So just use the relative volume name
$want =~ s/^\[//;
$want = quotemeta($want);
}
like($abs_path, qr|$want$|i, "Cwd::abs_path produced $abs_path");
like($fast_abs_path, qr|$want$|i, "Cwd::fast_abs_path produced $fast_abs_path");
if ($EXTRA_ABSPATH_TESTS) {
# _perl_abs_path() can fail if some ancestor directory isn't readable
if (defined $pas) {
like($pas, qr|$want$|i, "Cwd::_perl_abs_path produced $pas");
}
else {
is($!+0, EACCES, "check we got the expected error on failure");
}
}
rmtree($test_dirs[0], 0, 0);
1 while unlink $file;
}
# Make sure we can run abs_path() on files, not just directories
my $path = 'cwd.t';
path_ends_with(Cwd::abs_path($path), 'cwd.t', 'abs_path() can be invoked on a file');
path_ends_with(Cwd::fast_abs_path($path), 'cwd.t', 'fast_abs_path() can be invoked on a file');
path_ends_with(Cwd::_perl_abs_path($path), 'cwd.t', '_perl_abs_path() can be invoked on a file')
if $EXTRA_ABSPATH_TESTS;
$path = File::Spec->catfile(File::Spec->updir, 't', $path);
path_ends_with(Cwd::abs_path($path), 'cwd.t', 'abs_path() can be invoked on a file');
path_ends_with(Cwd::fast_abs_path($path), 'cwd.t', 'fast_abs_path() can be invoked on a file');
path_ends_with(Cwd::_perl_abs_path($path), 'cwd.t', '_perl_abs_path() can be invoked on a file')
if $EXTRA_ABSPATH_TESTS;
SKIP: {
my $file;
{
my $root = Cwd::abs_path(File::Spec->rootdir); # Add drive letter?
local *FH;
opendir FH, $root or skip("Can't opendir($root): $!", 2+$EXTRA_ABSPATH_TESTS);
($file) = grep {-f $_ and not -l $_} map File::Spec->catfile($root, $_), readdir FH;
closedir FH;
}
skip "No plain file in root directory to test with", 2+$EXTRA_ABSPATH_TESTS unless $file;
$file = VMS::Filespec::rmsexpand($file) if $^O eq 'VMS';
is Cwd::abs_path($file), $file, 'abs_path() works on files in the root directory';
is Cwd::fast_abs_path($file), $file, 'fast_abs_path() works on files in the root directory';
is Cwd::_perl_abs_path($file), $file, '_perl_abs_path() works on files in the root directory'
if $EXTRA_ABSPATH_TESTS;
}
SKIP: {
my $dir = "${$}a\nx";
mkdir $dir or skip "OS does not support dir names containing LF", 1;
chdir $dir or skip "OS cannot chdir into LF", 1;
eval { Cwd::fast_abs_path() };
is $@, "", 'fast_abs_path does not die in dir whose name contains LF';
chdir File::Spec->updir;
rmdir $dir;
}
#############################################
# These routines give us sort of a poor-man's cross-platform
# directory or path comparison capability.
sub bracketed_form_dir {
return join '', map "[$_]",
grep length, File::Spec->splitdir(File::Spec->canonpath( shift() ));
}
sub dir_ends_with {
my ($dir, $expect) = (shift, shift);
my $bracketed_expect = quotemeta bracketed_form_dir($expect);
like( bracketed_form_dir($dir), qr|$bracketed_expect$|i, (@_ ? shift : ()) );
}
sub bracketed_form_path {
return join '', map "[$_]",
grep length, File::Spec->splitpath(File::Spec->canonpath( shift() ));
}
sub path_ends_with {
my ($dir, $expect) = (shift, shift);
my $bracketed_expect = quotemeta bracketed_form_path($expect);
like( bracketed_form_path($dir), qr|$bracketed_expect$|i, (@_ ? shift : ()) );
}