[p5sagit/p5-mst-13.2.git] / lib / Module / Build / t / compat.t

#!/usr/bin/perl -w

use strict;
use lib $ENV{PERL_CORE} ? '../lib/Module/Build/t/lib' : 't/lib';
use MBTest;
use File::Spec;
use IO::File;
use Config;

# Don't let our own verbosity/test_file get mixed up with our subprocess's
my @makefile_keys = qw(TEST_VERBOSE HARNESS_VERBOSE TEST_FILES MAKEFLAGS);
local  @ENV{@makefile_keys};
delete @ENV{@makefile_keys};

my @makefile_types = qw(small passthrough traditional);
my $tests_per_type = 15;

#find_in_path does not understand VMS.

if ( $Config{make} && $^O ne 'VMS' ? find_in_path($Config{make}) : 1 ) {
    plan tests => 34 + @makefile_types*$tests_per_type*2;
} else {
    plan skip_all => "Don't know how to invoke 'make'";
}

my $is_vms_mms = ($^O eq 'VMS') && ($Config{make} =~ /MM[SK]/i);

use_ok 'Module::Build';
ensure_blib('Module::Build');


#########################

my $tmp = MBTest->tmpdir;

# Create test distribution; set requires and build_requires
use DistGen;
my $dist = DistGen->new( dir => $tmp );
$dist->regen;

$dist->chdir_in;


#########################

use Module::Build;
use Module::Build::Compat;

use Carp;  $SIG{__WARN__} = \&Carp::cluck;

my @make = $Config{make} eq 'nmake' ? ('nmake', '-nologo') : ($Config{make});

my $makefile = 'Makefile';

# VMS MMK/MMS by convention use Descrip.MMS
if ($is_vms_mms) {
    $makefile = 'Descrip.MMS';
}


#########################

# Test without requires

test_makefile_types();

# Test with requires

my $distname = $dist->name;
$dist->change_build_pl({ 
  module_name         => $distname,
  license             => 'perl',
  requires            => {
    'perl'        => $],
    'File::Spec'  => 0,
  },
  build_requires      => {
    'Test::More'  => 0,
  },
});

$dist->regen;

test_makefile_types( requires => {
    'perl' => $],
    'File::Spec' => 0,
    'Test::More' => 0,
});

######################

$dist->change_build_pl({ 
  module_name         => $distname,
  license             => 'perl',
});
$dist->regen;

# Create M::B instance but don't pollute STDOUT
my $mb;
stdout_of( sub {
    $mb = Module::Build->new_from_context;
});
ok $mb, "Module::Build->new_from_context";


{
  # Make sure fake_makefile() can run without 'build_class', as it may be
  # in older-generated Makefile.PLs
  my $warning = '';
  local $SIG{__WARN__} = sub { $warning = shift; };

  my $maketext = eval { Module::Build::Compat->fake_makefile(makefile => $makefile) };
  is $@, '', "fake_makefile lived";
  like $maketext, qr/^realclean/m, "found 'realclean' in fake_makefile output";
  like $warning, qr/build_class/, "saw warning about 'build_class'";
}

{
  # Make sure custom builder subclass is used in the created
  # Makefile.PL - make sure it fails in the right way here.
  local @Foo::Builder::ISA = qw(Module::Build);
  my $foo_builder;
  stdout_of( sub {
    $foo_builder = Foo::Builder->new_from_context;
  });
  foreach my $style ('passthrough', 'small') {
    Module::Build::Compat->create_makefile_pl($style, $foo_builder);
    ok -e 'Makefile.PL', "$style Makefile.PL created";
    
    # Should fail with "can't find Foo/Builder.pm"
    my $result;
    my ($stdout, $stderr ) = stdout_stderr_of (sub {
      $result = $mb->run_perl_script('Makefile.PL');
    });
    ok ! $result, "Makefile.PL failed";
    like $stderr, qr{Foo/Builder.pm}, "custom builder wasn't found";
  }
  
  # Now make sure it can actually work.
  my $bar_builder;
  stdout_of( sub {
    $bar_builder = Module::Build->subclass( class => 'Bar::Builder' )->new_from_context;
  });
  foreach my $style ('passthrough', 'small') {
    Module::Build::Compat->create_makefile_pl($style, $bar_builder);
    ok -e 'Makefile.PL', "$style Makefile.PL created via subclass";
    my $result;
    stdout_of( sub {
      $result = $mb->run_perl_script('Makefile.PL');
    });
    ok $result, "Makefile.PL ran without error";
  }
}

{
  # Make sure various Makefile.PL arguments are supported
  Module::Build::Compat->create_makefile_pl('passthrough', $mb);

  my $libdir = File::Spec->catdir( $tmp, 'libdir' );
  my $result;
  stdout_of( sub {
    $result = $mb->run_perl_script('Makefile.PL', [],
      [
      "LIB=$libdir",
      'TEST_VERBOSE=1',
      'INSTALLDIRS=perl',
      'POLLUTE=1',
      ]
    );
  });
  ok $result, "passthrough Makefile.PL ran with arguments";
  ok -e 'Build.PL', "Build.PL generated";

  my $new_build = Module::Build->resume();
  is $new_build->installdirs, 'core', "installdirs is core";
  is $new_build->verbose, 1, "tests set for verbose";
  is $new_build->install_destination('lib'), $libdir, "custom libdir";
  is $new_build->extra_compiler_flags->[0], '-DPERL_POLLUTE', "PERL_POLLUTE set";

  # Make sure those switches actually had an effect
  my ($ran_ok, $output);
  $output = stdout_of( sub { $ran_ok = $new_build->do_system(@make, 'test') } );
  ok $ran_ok, "make test ran without error";
  $output =~ s/^/# /gm;  # Don't confuse our own test output
  like $output, qr/(?:# ok \d+\s+)+/, 'Should be verbose';

  # Make sure various Makefile arguments are supported
  my $make_macro = 'TEST_VERBOSE=0';

  # VMS MMK/MMS macros use different syntax.
  if ($is_vms_mms) {
    $make_macro = '/macro=("' . $make_macro . '")';
  }

  $output = stdout_of( sub {
    local $ENV{HARNESS_TIMER}; # RT#39635 - timer messes with output
    $ran_ok = $mb->do_system(@make, 'test', $make_macro)
  } );

  ok $ran_ok, "make test without verbose ran ok";
  $output =~ s/^/# /gm;  # Don't confuse our own test output
  like $output,
       qr/# .+basic(\.t)?[.\s#]+ok[.\s#]+All tests successful/,
       'Should be non-verbose';

  (my $libdir2 = $libdir) =~ s/libdir/lbiidr/;
  my @make_args = ('INSTALLDIRS=vendor', "INSTALLVENDORLIB=$libdir2");

  if ($is_vms_mms) { # VMS MMK/MMS macros use different syntax.
    $make_args[0] = '/macro=("' . join('","',@make_args) . '")';
    pop @make_args while scalar(@make_args) > 1;
  }
  ($output) = stdout_stderr_of(
    sub {
      $ran_ok = $mb->do_system(@make, 'fakeinstall', @make_args);
    }
  );

  ok $ran_ok, "make fakeinstall with INSTALLDIRS=vendor ran ok";
  $output =~ s/^/# /gm;  # Don't confuse our own test output
  like $output,
       qr/\Q$libdir2\E .* Simple\.pm/x,
       'Should have installdirs=vendor';

  stdout_of( sub { $mb->do_system(@make, 'realclean'); } );
  ok ! -e $makefile, "$makefile shouldn't exist";

  1 while unlink 'Makefile.PL';
  ok ! -e 'Makefile.PL', "Makefile.PL cleaned up";

  1 while unlink $libdir, $libdir2;
}

{ # Make sure tilde-expansion works

  # C<glob> on MSWin32 uses $ENV{HOME} if defined to do tilde-expansion
  local $ENV{HOME} = 'C:/' if $^O =~ /MSWin/ && !exists( $ENV{HOME} );

  Module::Build::Compat->create_makefile_pl('passthrough', $mb);

  stdout_of( sub {
    $mb->run_perl_script('Makefile.PL', [], ['INSTALL_BASE=~/foo']);
  });
  my $b2 = Module::Build->current;
  ok $b2->install_base, "install_base set";
  unlike $b2->install_base, qr/^~/, "Tildes should be expanded";
  
  stdout_of( sub { $mb->do_system(@make, 'realclean'); } );
  ok ! -e $makefile, "$makefile shouldn't exist";

  1 while unlink 'Makefile.PL';
  ok ! -e 'Makefile.PL', "Makefile.PL cleaned up";
}

# cleanup
$dist->remove;

#########################################################

sub test_makefile_types {
  my %opts = @_;
  $opts{requires} ||= {};

  foreach my $type (@makefile_types) {
    # Create M::B instance 
    my $mb;
    stdout_of( sub {
        $mb = Module::Build->new_from_context;
    });
    ok $mb, "Module::Build->new_from_context";

    # Create and test Makefile.PL
    Module::Build::Compat->create_makefile_pl($type, $mb);
    ok -e 'Makefile.PL', "$type Makefile.PL created";
    test_makefile_pl_requires_perl( $opts{requires}{perl} );
    test_makefile_creation($mb);
    test_makefile_prereq_pm( $opts{requires} );
      
    my ($output,$success);
    # Capture output to keep our STDOUT clean
    $output = stdout_of( sub {
      $success = $mb->do_system(@make);
    });
    ok $success, "make ran without error";

    # Can't let 'test' STDOUT go to our STDOUT, or it'll confuse Test::Harness.
    $output = stdout_of( sub {
      $success = $mb->do_system(@make, 'test');
    });
    ok $success, "make test ran without error";
    like uc $output, qr{DONE\.|SUCCESS}, "make test output indicated success";
    
    $output = stdout_of( sub {
      $success = $mb->do_system(@make, 'realclean');
    });
    ok $success, "make realclean ran without error";

    # Try again with some Makefile.PL arguments
    test_makefile_creation($mb, [], 'INSTALLDIRS=vendor', 1);
    
    1 while unlink 'Makefile.PL';
    ok ! -e 'Makefile.PL', "cleaned up Makefile";
  }
}

sub test_makefile_creation {
  my ($build, $preargs, $postargs, $cleanup) = @_;
  
  my ($output, $result);
  # capture output to avoid polluting our test output
  $output = stdout_of( sub {
      $result = $build->run_perl_script('Makefile.PL', $preargs, $postargs);
  });
  my $label = "Makefile.PL ran without error";
  if ( defined $postargs && length $postargs ) {
    $label .= " (postargs: $postargs)";
  }
  ok $result, $label;
  ok -e $makefile, "$makefile exists";
  
  if ($cleanup) {
    $output = stdout_of( sub {
      $build->do_system(@make, 'realclean');
    });
    ok ! -e '$makefile', "$makefile cleaned up";
  }
  else {
    pass '(skipping cleanup)'; # keep test count constant
  }
}

sub test_makefile_prereq_pm {
  my %requires = %{ $_[0] };
  delete $requires{perl}; # until EU::MM supports this
  SKIP: {
    skip "$makefile not found", 1 unless -e $makefile;
    my $prereq_pm = find_makefile_prereq_pm();
    is_deeply $prereq_pm, \%requires,
      "$makefile has correct PREREQ_PM line";
  }
}

sub test_makefile_pl_requires_perl {
  my $perl_version = shift || q{};
  SKIP: {
    skip 'Makefile.PL not found', 1 unless -e 'Makefile.PL';
    my $file_contents = slurp 'Makefile.PL';
    my $found_requires = $file_contents =~ m{^require $perl_version;}ms;
    if (length $perl_version) {
      ok $found_requires, "Makefile.PL has 'require $perl_version;'"
        or diag "Makefile.PL:\n$file_contents";
    }
    else {
      ok ! $found_requires, "Makefile.PL does not require a perl version";
    }
  }
}

# Following subroutine adapted from code in CPAN.pm 
# by Andreas Koenig and A. Speer.
sub find_makefile_prereq_pm {
  my $fh = IO::File->new( $makefile, 'r' ) 
    or die "Can't read $makefile: $!";
  my $req = {};
  local($/) = "\n";
  while (<$fh>) {
    # locate PREREQ_PM
    last if /MakeMaker post_initialize section/;
    my($p) = m{^[\#]
      \s+PREREQ_PM\s+=>\s+(.+)
    }x;
    next unless $p;

    # extract modules
    while ( $p =~ m/(?:\s)([\w\:]+)=>(q\[.*?\]|undef),?/g ){
      my($m,$n) = ($1,$2);
      if ($n =~ /^q\[(.*?)\]$/) {
        $n = $1;
      }
      $req->{$m} = $n;
    }
    last;
  }
  return $req;
}
Commit	Line	Data
bb4e9162	1	#!/usr/bin/perl -w
	2
	3	use strict;
	4	use lib $ENV{PERL_CORE} ? '../lib/Module/Build/t/lib' : 't/lib';
	5	use MBTest;
	6	use File::Spec;
7a827510	7	use IO::File;
bb4e9162	8	use Config;
	9
	10	# Don't let our own verbosity/test_file get mixed up with our subprocess's
	11	my @makefile_keys = qw(TEST_VERBOSE HARNESS_VERBOSE TEST_FILES MAKEFLAGS);
	12	local @ENV{@makefile_keys};
	13	delete @ENV{@makefile_keys};
	14
	15	my @makefile_types = qw(small passthrough traditional);
738349a8	16	my $tests_per_type = 15;
	17
	18	#find_in_path does not understand VMS.
	19
	20	if ( $Config{make} && $^O ne 'VMS' ? find_in_path($Config{make}) : 1 ) {
	21	plan tests => 34 + @makefile_types$tests_per_type2;
bb4e9162	22	} else {
	23	plan skip_all => "Don't know how to invoke 'make'";
	24	}
738349a8	25
	26	my $is_vms_mms = ($^O eq 'VMS') && ($Config{make} =~ /MM[SK]/i);
	27
	28	use_ok 'Module::Build';
	29	ensure_blib('Module::Build');
bb4e9162	30
	31
	32	#########################
	33
7a827510	34	my $tmp = MBTest->tmpdir;
bb4e9162	35
7a827510	36	# Create test distribution; set requires and build_requires
bb4e9162	37	use DistGen;
	38	my $dist = DistGen->new( dir => $tmp );
	39	$dist->regen;
	40
738349a8	41	$dist->chdir_in;
bb4e9162	42
	43
	44	#########################
	45
	46	use Module::Build;
	47	use Module::Build::Compat;
	48
	49	use Carp; $SIG{__WARN__} = \&Carp::cluck;
	50
	51	my @make = $Config{make} eq 'nmake' ? ('nmake', '-nologo') : ($Config{make});
	52
738349a8	53	my $makefile = 'Makefile';
	54
	55	# VMS MMK/MMS by convention use Descrip.MMS
	56	if ($is_vms_mms) {
	57	$makefile = 'Descrip.MMS';
	58	}
	59
	60
bb4e9162	61	#########################
bb4e9162	62
7a827510	63	# Test without requires
bb4e9162	64
7a827510	65	test_makefile_types();
	66
	67	# Test with requires
	68
	69	my $distname = $dist->name;
	70	$dist->change_build_pl({
	71	module_name => $distname,
	72	license => 'perl',
	73	requires => {
	74	'perl' => $],
	75	'File::Spec' => 0,
	76	},
	77	build_requires => {
	78	'Test::More' => 0,
	79	},
	80	});
	81
	82	$dist->regen;
	83
	84	test_makefile_types( requires => {
	85	'perl' => $],
	86	'File::Spec' => 0,
	87	'Test::More' => 0,
	88	});
	89
	90	######################
	91
	92	$dist->change_build_pl({
	93	module_name => $distname,
	94	license => 'perl',
	95	});
	96	$dist->regen;
	97
	98	# Create M::B instance but don't pollute STDOUT
	99	my $mb;
	100	stdout_of( sub {
	101	$mb = Module::Build->new_from_context;
	102	});
	103	ok $mb, "Module::Build->new_from_context";
bb4e9162	104
bb4e9162	105
	106	{
	107	# Make sure fake_makefile() can run without 'build_class', as it may be
	108	# in older-generated Makefile.PLs
	109	my $warning = '';
	110	local $SIG{__WARN__} = sub { $warning = shift; };
738349a8	111
738349a8	112	my $maketext = eval { Module::Build::Compat->fake_makefile(makefile => $makefile) };
7a827510	113	is $@, '', "fake_makefile lived";
	114	like $maketext, qr/^realclean/m, "found 'realclean' in fake_makefile output";
	115	like $warning, qr/build_class/, "saw warning about 'build_class'";
bb4e9162	116	}
	117
	118	{
	119	# Make sure custom builder subclass is used in the created
	120	# Makefile.PL - make sure it fails in the right way here.
	121	local @Foo::Builder::ISA = qw(Module::Build);
7a827510	122	my $foo_builder;
	123	stdout_of( sub {
	124	$foo_builder = Foo::Builder->new_from_context;
	125	});
bb4e9162	126	foreach my $style ('passthrough', 'small') {
bb4e9162	127	Module::Build::Compat->create_makefile_pl($style, $foo_builder);
7a827510	128	ok -e 'Makefile.PL', "$style Makefile.PL created";
bb4e9162	129
bb4e9162	130	# Should fail with "can't find Foo/Builder.pm"
7a827510	131	my $result;
	132	my ($stdout, $stderr ) = stdout_stderr_of (sub {
	133	$result = $mb->run_perl_script('Makefile.PL');
	134	});
	135	ok ! $result, "Makefile.PL failed";
	136	like $stderr, qr{Foo/Builder.pm}, "custom builder wasn't found";
bb4e9162	137	}
	138
	139	# Now make sure it can actually work.
7a827510	140	my $bar_builder;
	141	stdout_of( sub {
	142	$bar_builder = Module::Build->subclass( class => 'Bar::Builder' )->new_from_context;
	143	});
bb4e9162	144	foreach my $style ('passthrough', 'small') {
bb4e9162	145	Module::Build::Compat->create_makefile_pl($style, $bar_builder);
7a827510	146	ok -e 'Makefile.PL', "$style Makefile.PL created via subclass";
	147	my $result;
	148	stdout_of( sub {
	149	$result = $mb->run_perl_script('Makefile.PL');
	150	});
	151	ok $result, "Makefile.PL ran without error";
bb4e9162	152	}
	153	}
	154
	155	{
	156	# Make sure various Makefile.PL arguments are supported
	157	Module::Build::Compat->create_makefile_pl('passthrough', $mb);
	158
738349a8	159	my $libdir = File::Spec->catdir( $tmp, 'libdir' );
7a827510	160	my $result;
	161	stdout_of( sub {
	162	$result = $mb->run_perl_script('Makefile.PL', [],
	163	[
	164	"LIB=$libdir",
	165	'TEST_VERBOSE=1',
	166	'INSTALLDIRS=perl',
	167	'POLLUTE=1',
	168	]
	169	);
	170	});
	171	ok $result, "passthrough Makefile.PL ran with arguments";
	172	ok -e 'Build.PL', "Build.PL generated";
bb4e9162	173
bb4e9162	174	my $new_build = Module::Build->resume();
7a827510	175	is $new_build->installdirs, 'core', "installdirs is core";
	176	is $new_build->verbose, 1, "tests set for verbose";
	177	is $new_build->install_destination('lib'), $libdir, "custom libdir";
	178	is $new_build->extra_compiler_flags->[0], '-DPERL_POLLUTE', "PERL_POLLUTE set";
bb4e9162	179
	180	# Make sure those switches actually had an effect
	181	my ($ran_ok, $output);
	182	$output = stdout_of( sub { $ran_ok = $new_build->do_system(@make, 'test') } );
7a827510	183	ok $ran_ok, "make test ran without error";
bb4e9162	184	$output =~ s/^/# /gm; # Don't confuse our own test output
	185	like $output, qr/(?:# ok \d+\s+)+/, 'Should be verbose';
	186
	187	# Make sure various Makefile arguments are supported
738349a8	188	my $make_macro = 'TEST_VERBOSE=0';
	189
	190	# VMS MMK/MMS macros use different syntax.
	191	if ($is_vms_mms) {
	192	$make_macro = '/macro=("' . $make_macro . '")';
	193	}
	194
	195	$output = stdout_of( sub {
798f208d	196	local $ENV{HARNESS_TIMER}; # RT#39635 - timer messes with output
738349a8	197	$ran_ok = $mb->do_system(@make, 'test', $make_macro)
	198	} );
	199
7a827510	200	ok $ran_ok, "make test without verbose ran ok";
bb4e9162	201	$output =~ s/^/# /gm; # Don't confuse our own test output
ba889e8f	202	like $output,
738349a8	203	qr/# .+basic(\.t)?[.\s#]+ok[.\s#]+All tests successful/,
738349a8	204	'Should be non-verbose';
bb4e9162	205
738349a8	206	(my $libdir2 = $libdir) =~ s/libdir/lbiidr/;
	207	my @make_args = ('INSTALLDIRS=vendor', "INSTALLVENDORLIB=$libdir2");
	208
	209	if ($is_vms_mms) { # VMS MMK/MMS macros use different syntax.
	210	$make_args[0] = '/macro=("' . join('","',@make_args) . '")';
	211	pop @make_args while scalar(@make_args) > 1;
	212	}
	213	($output) = stdout_stderr_of(
	214	sub {
	215	$ran_ok = $mb->do_system(@make, 'fakeinstall', @make_args);
	216	}
	217	);
	218
	219	ok $ran_ok, "make fakeinstall with INSTALLDIRS=vendor ran ok";
	220	$output =~ s/^/# /gm; # Don't confuse our own test output
	221	like $output,
	222	qr/\Q$libdir2\E .* Simple\.pm/x,
	223	'Should have installdirs=vendor';
bb4e9162	224
7a827510	225	stdout_of( sub { $mb->do_system(@make, 'realclean'); } );
738349a8	226	ok ! -e $makefile, "$makefile shouldn't exist";
bb4e9162	227
bb4e9162	228	1 while unlink 'Makefile.PL';
7a827510	229	ok ! -e 'Makefile.PL', "Makefile.PL cleaned up";
738349a8	230
738349a8	231	1 while unlink $libdir, $libdir2;
bb4e9162	232	}
	233
	234	{ # Make sure tilde-expansion works
	235
	236	# C<glob> on MSWin32 uses $ENV{HOME} if defined to do tilde-expansion
	237	local $ENV{HOME} = 'C:/' if $^O =~ /MSWin/ && !exists( $ENV{HOME} );
	238
	239	Module::Build::Compat->create_makefile_pl('passthrough', $mb);
	240
7a827510	241	stdout_of( sub {
	242	$mb->run_perl_script('Makefile.PL', [], ['INSTALL_BASE=~/foo']);
	243	});
bb4e9162	244	my $b2 = Module::Build->current;
7a827510	245	ok $b2->install_base, "install_base set";
bb4e9162	246	unlike $b2->install_base, qr/^~/, "Tildes should be expanded";
bb4e9162	247
7a827510	248	stdout_of( sub { $mb->do_system(@make, 'realclean'); } );
738349a8	249	ok ! -e $makefile, "$makefile shouldn't exist";
7a827510	250
bb4e9162	251	1 while unlink 'Makefile.PL';
7a827510	252	ok ! -e 'Makefile.PL', "Makefile.PL cleaned up";
bb4e9162	253	}
7a827510	254
738349a8	255	# cleanup
	256	$dist->remove;
	257
bb4e9162	258	#########################################################
bb4e9162	259
7a827510	260	sub test_makefile_types {
	261	my %opts = @_;
	262	$opts{requires} \|\|= {};
	263
	264	foreach my $type (@makefile_types) {
	265	# Create M::B instance
	266	my $mb;
	267	stdout_of( sub {
	268	$mb = Module::Build->new_from_context;
	269	});
	270	ok $mb, "Module::Build->new_from_context";
	271
	272	# Create and test Makefile.PL
	273	Module::Build::Compat->create_makefile_pl($type, $mb);
	274	ok -e 'Makefile.PL', "$type Makefile.PL created";
	275	test_makefile_pl_requires_perl( $opts{requires}{perl} );
	276	test_makefile_creation($mb);
	277	test_makefile_prereq_pm( $opts{requires} );
	278
	279	my ($output,$success);
	280	# Capture output to keep our STDOUT clean
	281	$output = stdout_of( sub {
	282	$success = $mb->do_system(@make);
	283	});
	284	ok $success, "make ran without error";
	285
	286	# Can't let 'test' STDOUT go to our STDOUT, or it'll confuse Test::Harness.
	287	$output = stdout_of( sub {
	288	$success = $mb->do_system(@make, 'test');
	289	});
	290	ok $success, "make test ran without error";
	291	like uc $output, qr{DONE\.\|SUCCESS}, "make test output indicated success";
	292
	293	$output = stdout_of( sub {
	294	$success = $mb->do_system(@make, 'realclean');
	295	});
	296	ok $success, "make realclean ran without error";
	297
	298	# Try again with some Makefile.PL arguments
	299	test_makefile_creation($mb, [], 'INSTALLDIRS=vendor', 1);
	300
	301	1 while unlink 'Makefile.PL';
	302	ok ! -e 'Makefile.PL', "cleaned up Makefile";
	303	}
	304	}
	305
bb4e9162	306	sub test_makefile_creation {
	307	my ($build, $preargs, $postargs, $cleanup) = @_;
	308
7a827510	309	my ($output, $result);
	310	# capture output to avoid polluting our test output
	311	$output = stdout_of( sub {
	312	$result = $build->run_perl_script('Makefile.PL', $preargs, $postargs);
	313	});
	314	my $label = "Makefile.PL ran without error";
	315	if ( defined $postargs && length $postargs ) {
	316	$label .= " (postargs: $postargs)";
	317	}
	318	ok $result, $label;
738349a8	319	ok -e $makefile, "$makefile exists";
bb4e9162	320
bb4e9162	321	if ($cleanup) {
7a827510	322	$output = stdout_of( sub {
	323	$build->do_system(@make, 'realclean');
	324	});
738349a8	325	ok ! -e '$makefile', "$makefile cleaned up";
7a827510	326	}
	327	else {
	328	pass '(skipping cleanup)'; # keep test count constant
bb4e9162	329	}
	330	}
	331
7a827510	332	sub test_makefile_prereq_pm {
	333	my %requires = %{ $_[0] };
	334	delete $requires{perl}; # until EU::MM supports this
	335	SKIP: {
738349a8	336	skip "$makefile not found", 1 unless -e $makefile;
7a827510	337	my $prereq_pm = find_makefile_prereq_pm();
7a827510	338	is_deeply $prereq_pm, \%requires,
738349a8	339	"$makefile has correct PREREQ_PM line";
7a827510	340	}
	341	}
	342
	343	sub test_makefile_pl_requires_perl {
	344	my $perl_version = shift \|\| q{};
	345	SKIP: {
	346	skip 'Makefile.PL not found', 1 unless -e 'Makefile.PL';
	347	my $file_contents = slurp 'Makefile.PL';
	348	my $found_requires = $file_contents =~ m{^require $perl_version;}ms;
	349	if (length $perl_version) {
	350	ok $found_requires, "Makefile.PL has 'require $perl_version;'"
	351	or diag "Makefile.PL:\n$file_contents";
	352	}
	353	else {
	354	ok ! $found_requires, "Makefile.PL does not require a perl version";
	355	}
	356	}
	357	}
	358
	359	# Following subroutine adapted from code in CPAN.pm
	360	# by Andreas Koenig and A. Speer.
	361	sub find_makefile_prereq_pm {
738349a8	362	my $fh = IO::File->new( $makefile, 'r' )
738349a8	363	or die "Can't read $makefile: $!";
7a827510	364	my $req = {};
	365	local($/) = "\n";
	366	while (<$fh>) {
	367	# locate PREREQ_PM
	368	last if /MakeMaker post_initialize section/;
	369	my($p) = m{^[\#]
	370	\s+PREREQ_PM\s+=>\s+(.+)
	371	}x;
	372	next unless $p;
	373
	374	# extract modules
	375	while ( $p =~ m/(?:\s)([\w\:]+)=>(q\[.*?\]\|undef),?/g ){
	376	my($m,$n) = ($1,$2);
	377	if ($n =~ /^q\[(.*?)\]$/) {
	378	$n = $1;
	379	}
	380	$req->{$m} = $n;
	381	}
	382	last;
	383	}
	384	return $req;
	385	}