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|
package MBTest;
use strict;
use File::Spec;
use File::Temp ();
use File::Path ();
# Setup the code to clean out %ENV
BEGIN {
# Environment variables which might effect our testing
my @delete_env_keys = qw(
DEVEL_COVER_OPTIONS
MODULEBUILDRC
PERL_MB_OPT
HARNESS_TIMER
HARNESS_OPTIONS
HARNESS_VERBOSE
PREFIX
INSTALL_BASE
INSTALLDIRS
);
# Remember the ENV values because on VMS %ENV is global
# to the user, not the process.
my %restore_env_keys;
sub clean_env {
for my $key (@delete_env_keys) {
if( exists $ENV{$key} ) {
$restore_env_keys{$key} = delete $ENV{$key};
}
else {
delete $ENV{$key};
}
}
}
END {
while( my($key, $val) = each %restore_env_keys ) {
$ENV{$key} = $val;
}
}
}
BEGIN {
clean_env();
# In case the test wants to use our other bundled
# modules, make sure they can be loaded.
my $t_lib = File::Spec->catdir('t', 'bundled');
push @INC, $t_lib; # Let user's installed version override
if ($ENV{PERL_CORE}) {
# We change directories, so expand @INC and $^X to absolute paths
# Also add .
@INC = (map(File::Spec->rel2abs($_), @INC), ".");
$^X = File::Spec->rel2abs($^X);
}
}
use Exporter;
use Test::More;
use Config;
use Cwd ();
# We pass everything through to Test::More
use vars qw($VERSION @ISA @EXPORT %EXPORT_TAGS $TODO);
$VERSION = 0.01_01;
@ISA = qw(Test::More); # Test::More isa Exporter
@EXPORT = @Test::More::EXPORT;
%EXPORT_TAGS = %Test::More::EXPORT_TAGS;
# We have a few extra exports, but Test::More has a special import()
# that won't take extra additions.
my @extra_exports = qw(
stdout_of
stderr_of
stdout_stderr_of
slurp
find_in_path
check_compiler
have_module
blib_load
);
push @EXPORT, @extra_exports;
__PACKAGE__->export(scalar caller, @extra_exports);
# XXX ^-- that should really happen in import()
########################################################################
# always return to the current directory
{
my $cwd = File::Spec->rel2abs(Cwd::cwd);
sub original_cwd { return $cwd }
END {
# Go back to where you came from!
chdir $cwd or die "Couldn't chdir to $cwd";
}
}
########################################################################
{ # backwards compatible temp filename recipe adapted from perlfaq
my $tmp_count = 0;
my $tmp_base_name = sprintf("%d-%d", $$, time());
sub temp_file_name {
sprintf("%s-%04d", $tmp_base_name, ++$tmp_count)
}
}
########################################################################
# Setup a temp directory
sub tmpdir {
my ($self, @args) = @_;
my $dir = $ENV{PERL_CORE} ? MBTest->original_cwd : File::Spec->tmpdir;
return File::Temp::tempdir('MB-XXXXXXXX', CLEANUP => 1, DIR => $dir, @args);
}
sub save_handle {
my ($handle, $subr) = @_;
my $outfile = temp_file_name();
local *SAVEOUT;
open SAVEOUT, ">&" . fileno($handle)
or die "Can't save output handle: $!";
open $handle, "> $outfile" or die "Can't create $outfile: $!";
eval {$subr->()};
open $handle, ">&SAVEOUT" or die "Can't restore output: $!";
my $ret = slurp($outfile);
1 while unlink $outfile;
return $ret;
}
sub stdout_of { save_handle(\*STDOUT, @_) }
sub stderr_of { save_handle(\*STDERR, @_) }
sub stdout_stderr_of {
my $subr = shift;
my ($stdout, $stderr);
$stdout = stdout_of ( sub {
$stderr = stderr_of( $subr )
});
return wantarray ? ($stdout, $stderr) : $stdout . $stderr;
}
sub slurp {
my $fh = IO::File->new($_[0]) or die "Can't open $_[0]: $!";
local $/;
return scalar <$fh>;
}
# Some extensions we should know about if we're looking for executables
sub exe_exts {
if ($^O eq 'MSWin32') {
return split($Config{path_sep}, $ENV{PATHEXT} || '.com;.exe;.bat');
}
if ($^O eq 'os2') {
return qw(.exe .com .pl .cmd .bat .sh .ksh);
}
return;
}
sub find_in_path {
my $thing = shift;
my @exe_ext = exe_exts();
if ( File::Spec->file_name_is_absolute( $thing ) ) {
foreach my $ext ( '', @exe_ext ) {
return "$thing$ext" if -e "$thing$ext";
}
}
else {
my @path = split $Config{path_sep}, $ENV{PATH};
foreach (@path) {
my $fullpath = File::Spec->catfile($_, $thing);
foreach my $ext ( '', @exe_ext ) {
return "$fullpath$ext" if -e "$fullpath$ext";
}
}
}
return;
}
sub check_compiler {
return (1,1) if $ENV{PERL_CORE};
local $SIG{__WARN__} = sub {};
blib_load('Module::Build');
my $mb = Module::Build->current;
$mb->verbose( 0 );
my $have_c_compiler;
stderr_of( sub {$have_c_compiler = $mb->have_c_compiler} );
# check noexec tmpdir
my $tmp_exec;
if ( $have_c_compiler ) {
my $dir = MBTest->tmpdir;
my $c_file = File::Spec->catfile($dir,'test.c');
open my $fh, ">", $c_file;
print {$fh} "int main() { return 0; }\n";
close $fh;
my $exe = $mb->cbuilder->link_executable(
objects => $mb->cbuilder->compile( source => $c_file )
);
$tmp_exec = 0 == system( $exe );
}
return ($have_c_compiler, $tmp_exec);
}
sub have_module {
my $module = shift;
return eval "require $module; 1";
}
sub blib_load {
# Load the given module and ensure it came from blib/, not the larger system
my $mod = shift;
have_module($mod) or die "Error loading $mod\: $@\n";
(my $path = $mod) =~ s{::}{/}g;
$path .= ".pm";
my ($pkg, $file, $line) = caller;
unless($ENV{PERL_CORE}) {
unless($INC{$path} =~ m/\bblib\b/) {
(my $load_from = $INC{$path}) =~ s{$path$}{};
die "$mod loaded from '$load_from'\nIt should have been loaded from blib. \@INC contains:\n ",
join("\n ", @INC) . "\nFatal error occured in blib_load() at $file, line $line.\n";
}
}
}
1;
# vim:ts=2:sw=2:et:sta
|
