Please review attached patch, which refactors Parrot configuration step
auto::env slightly and provides 3 test files.
Index: MANIFEST
===================================================================
--- MANIFEST    (revision 22786)
+++ MANIFEST    (working copy)
@@ -1,7 +1,7 @@
 # ex: set ro:
 # $Id$
 #
-# generated by tools/dev/mk_manifest_and_skip.pl Sat Nov 10 01:52:43 2007 UT
+# generated by tools/dev/mk_manifest_and_skip.pl Sat Nov 10 03:36:54 2007 UT
 #
 # See tools/dev/install_files.pl for documentation on the
 # format of this file.
@@ -3096,7 +3096,9 @@
 t/configure/139-auto_signal-01.t                            []
 t/configure/140-auto_socklen_t-01.t                         []
 t/configure/140-auto_socklen_t-02.t                         []
-t/configure/141-auto_env.t                                  []
+t/configure/141-auto_env-01.t                               []
+t/configure/141-auto_env-02.t                               []
+t/configure/141-auto_env-03.t                               []
 t/configure/142-auto_aio.t                                  []
 t/configure/143-auto_gmp.t                                  []
 t/configure/144-auto_readline.t                             []
Index: t/configure/141-auto_env-01.t
===================================================================
--- t/configure/141-auto_env-01.t       (revision 0)
+++ t/configure/141-auto_env-01.t       (revision 0)
@@ -0,0 +1,77 @@
+#! perl
+# Copyright (C) 2007, The Perl Foundation.
+# $Id$
+# 141-auto_env-01.t
+
+use strict;
+use warnings;
+use Test::More tests => 12;
+use Carp;
+use lib qw( lib t/configure/testlib );
+use_ok('config::init::defaults');
+use_ok('config::auto::env');
+use Parrot::Configure;
+use Parrot::Configure::Options qw( process_options );
+use Parrot::Configure::Test qw( test_step_thru_runstep);
+
+my $args = process_options( {
+    argv            => [],
+    mode            => q{configure},
+} );
+
+my $conf = Parrot::Configure->new();
+
+test_step_thru_runstep($conf, q{init::defaults}, $args);
+
+my ($task, $step_name, @step_params, $step, $ret);
+my $pkg = q{auto::env};
+
+$conf->add_steps($pkg);
+$conf->options->set(%{$args});
+$task = $conf->steps->[1];
+$step_name   = $task->step;
[EMAIL PROTECTED] = @{ $task->params };
+
+$step = $step_name->new();
+ok(defined $step, "$step_name constructor returned defined value");
+isa_ok($step, $step_name);
+ok($step->description(), "$step_name has description");
+
+ok($step->runstep($conf), "runstep() returned true value");
+
+pass("Keep Devel::Cover happy");
+pass("Completed all tests in $0");
+
+################### DOCUMENTATION ###################
+
+=head1 NAME
+
+141-auto_env-01.t - test config::auto::env
+
+=head1 SYNOPSIS
+
+    % prove t/configure/141-auto_env-01.t
+
+=head1 DESCRIPTION
+
+The files in this directory test functionality used by F<Configure.pl>.
+
+The tests in this file test subroutines found in config::auto::env in
+its most ordinary usage.
+
+=head1 AUTHOR
+
+James E Keenan
+
+=head1 SEE ALSO
+
+config::auto::env, F<Configure.pl>.
+
+=cut
+
+# Local Variables:
+#   mode: cperl
+#   cperl-indent-level: 4
+#   fill-column: 100
+# End:
+# vim: expandtab shiftwidth=4:

Property changes on: t/configure/141-auto_env-01.t
___________________________________________________________________
Name: svn:mime-type
   + text/plain
Name: svn:keywords
   + Author Date Id Revision
Name: svn:eol-style
   + native

Index: t/configure/141-auto_env.t
===================================================================
--- t/configure/141-auto_env.t  (revision 22786)
+++ t/configure/141-auto_env.t  (working copy)
@@ -1,54 +0,0 @@
-#! perl
-# Copyright (C) 2007, The Perl Foundation.
-# $Id$
-# 141-auto_env.t
-
-use strict;
-use warnings;
-use Test::More tests =>  2;
-use Carp;
-use lib qw( lib );
-use_ok('config::auto::env');
-
-=for hints_for_testing The documentation for this package is skimpy;
-please try to improve it, e.g., by explaining what 'setenv' and
-'unsetenv' are.  Try to cover all branches and conditions.  Check latest
-reports of Parrot configuration tools testing coverage to see where your
-time available for writing tests is spent.
-
-=cut
-
-pass("Completed all tests in $0");
-
-################### DOCUMENTATION ###################
-
-=head1 NAME
-
-141-auto_env.t - test config::auto::env
-
-=head1 SYNOPSIS
-
-    % prove t/configure/141-auto_env.t
-
-=head1 DESCRIPTION
-
-The files in this directory test functionality used by F<Configure.pl>.
-
-The tests in this file test subroutines exported by config::auto::env.
-
-=head1 AUTHOR
-
-James E Keenan
-
-=head1 SEE ALSO
-
-config::auto::env, F<Configure.pl>.
-
-=cut
-
-# Local Variables:
-#   mode: cperl
-#   cperl-indent-level: 4
-#   fill-column: 100
-# End:
-# vim: expandtab shiftwidth=4:
Index: t/configure/141-auto_env-02.t
===================================================================
--- t/configure/141-auto_env-02.t       (revision 0)
+++ t/configure/141-auto_env-02.t       (revision 0)
@@ -0,0 +1,98 @@
+#! perl
+# Copyright (C) 2007, The Perl Foundation.
+# $Id$
+# 141-auto_env-02.t
+
+use strict;
+use warnings;
+use Test::More tests => 15;
+use Carp;
+use lib qw( lib t/configure/testlib );
+use_ok('config::init::defaults');
+use_ok('config::auto::env');
+use Parrot::Configure;
+use Parrot::Configure::Options qw( process_options );
+use Parrot::Configure::Test qw( test_step_thru_runstep);
+
+my $args = process_options( {
+    argv            => [],
+    mode            => q{configure},
+} );
+
+my $conf = Parrot::Configure->new();
+
+test_step_thru_runstep($conf, q{init::defaults}, $args);
+
+my ($task, $step_name, @step_params, $step, $ret);
+my $pkg = q{auto::env};
+
+$conf->add_steps($pkg);
+$conf->options->set(%{$args});
+$task = $conf->steps->[1];
+$step_name   = $task->step;
[EMAIL PROTECTED] = @{ $task->params };
+
+$step = $step_name->new();
+ok(defined $step, "$step_name constructor returned defined value");
+isa_ok($step, $step_name);
+ok($step->description(), "$step_name has description");
+
+my ($setenv, $unsetenv);
+
+$setenv = 1;
+$unsetenv = 1;
+$step->_evaluate_env($conf, $setenv, $unsetenv);
+is($step->result(), q{both}, "Got expected result");
+
+$setenv = 1;
+$unsetenv = 0;
+$step->_evaluate_env($conf, $setenv, $unsetenv);
+is($step->result(), q{setenv}, "Got expected result");
+
+$setenv = 0;
+$unsetenv = 1;
+$step->_evaluate_env($conf, $setenv, $unsetenv);
+is($step->result(), q{unsetenv}, "Got expected result");
+
+$setenv = 0;
+$unsetenv = 0;
+$step->_evaluate_env($conf, $setenv, $unsetenv);
+is($step->result(), q{no}, "Got expected result");
+
+pass("Keep Devel::Cover happy");
+pass("Completed all tests in $0");
+
+################### DOCUMENTATION ###################
+
+=head1 NAME
+
+141-auto_env-02.t - test config::auto::env
+
+=head1 SYNOPSIS
+
+    % prove t/configure/141-auto_env-02.t
+
+=head1 DESCRIPTION
+
+The files in this directory test functionality used by F<Configure.pl>.
+
+The tests in this file test config::auto::env::_evaluate_env(), an
+internal subroutine, in the various permutations of having or lacking
+C<setenv> and C<unsetenv>.
+
+=head1 AUTHOR
+
+James E Keenan
+
+=head1 SEE ALSO
+
+config::auto::env, F<Configure.pl>.
+
+=cut
+
+# Local Variables:
+#   mode: cperl
+#   cperl-indent-level: 4
+#   fill-column: 100
+# End:
+# vim: expandtab shiftwidth=4:

Property changes on: t/configure/141-auto_env-02.t
___________________________________________________________________
Name: svn:mime-type
   + text/plain
Name: svn:keywords
   + Author Date Id Revision
Name: svn:eol-style
   + native

Index: t/configure/141-auto_env-03.t
===================================================================
--- t/configure/141-auto_env-03.t       (revision 0)
+++ t/configure/141-auto_env-03.t       (revision 0)
@@ -0,0 +1,121 @@
+#! perl
+# Copyright (C) 2007, The Perl Foundation.
+# $Id$
+# 141-auto_env-03.t
+
+use strict;
+use warnings;
+use Test::More tests => 19;
+use Carp;
+use lib qw( lib t/configure/testlib );
+use_ok('config::init::defaults');
+use_ok('config::auto::env');
+use Parrot::Configure;
+use Parrot::Configure::Options qw( process_options );
+use Parrot::Configure::Test qw( test_step_thru_runstep);
+use Parrot::IO::Capture::Mini;
+
+my $args = process_options( {
+    argv            => [ q{--verbose} ],
+    mode            => q{configure},
+} );
+
+my $conf = Parrot::Configure->new();
+
+test_step_thru_runstep($conf, q{init::defaults}, $args);
+
+my ($task, $step_name, @step_params, $step, $ret);
+my $pkg = q{auto::env};
+
+$conf->add_steps($pkg);
+$conf->options->set(%{$args});
+$task = $conf->steps->[1];
+$step_name   = $task->step;
[EMAIL PROTECTED] = @{ $task->params };
+
+$step = $step_name->new();
+ok(defined $step, "$step_name constructor returned defined value");
+isa_ok($step, $step_name);
+ok($step->description(), "$step_name has description");
+
+my ($setenv, $unsetenv);
+
+{
+    my $tie_out = tie *STDOUT, "Parrot::IO::Capture::Mini"
+        or croak "Unable to tie";
+    $setenv = 1;
+    $unsetenv = 1;
+    $step->_evaluate_env($conf, $setenv, $unsetenv);
+    like($tie_out->READLINE, qr/both/, "Got expected verbose output");
+    is($step->result(), q{both}, "Got expected result");
+}
+untie *STDOUT;
+
+{
+    my $tie_out = tie *STDOUT, "Parrot::IO::Capture::Mini"
+        or croak "Unable to tie";
+    $setenv = 1;
+    $unsetenv = 0;
+    $step->_evaluate_env($conf, $setenv, $unsetenv);
+    like($tie_out->READLINE, qr/setenv/, "Got expected verbose output");
+    is($step->result(), q{setenv}, "Got expected result");
+}
+untie *STDOUT;
+
+{
+    my $tie_out = tie *STDOUT, "Parrot::IO::Capture::Mini"
+        or croak "Unable to tie";
+    $setenv = 0;
+    $unsetenv = 1;
+    $step->_evaluate_env($conf, $setenv, $unsetenv);
+    like($tie_out->READLINE, qr/unsetenv/, "Got expected verbose output");
+    is($step->result(), q{unsetenv}, "Got expected result");
+}
+untie *STDOUT;
+
+{
+    my $tie_out = tie *STDOUT, "Parrot::IO::Capture::Mini"
+        or croak "Unable to tie";
+    $setenv = 0;
+    $unsetenv = 0;
+    $step->_evaluate_env($conf, $setenv, $unsetenv);
+    like($tie_out->READLINE, qr/no/, "Got expected verbose output");
+    is($step->result(), q{no}, "Got expected result");
+}
+untie *STDOUT;
+
+pass("Keep Devel::Cover happy");
+pass("Completed all tests in $0");
+
+################### DOCUMENTATION ###################
+
+=head1 NAME
+
+141-auto_env-03.t - test config::auto::env
+
+=head1 SYNOPSIS
+
+    % prove t/configure/141-auto_env-03.t
+
+=head1 DESCRIPTION
+
+The files in this directory test functionality used by F<Configure.pl>.
+
+The tests in this file test config::auto::env in verbose mode.
+
+=head1 AUTHOR
+
+James E Keenan
+
+=head1 SEE ALSO
+
+config::auto::env, F<Configure.pl>.
+
+=cut
+
+# Local Variables:
+#   mode: cperl
+#   cperl-indent-level: 4
+#   fill-column: 100
+# End:
+# vim: expandtab shiftwidth=4:

Property changes on: t/configure/141-auto_env-03.t
___________________________________________________________________
Name: svn:mime-type
   + text/plain
Name: svn:keywords
   + Author Date Id Revision
Name: svn:eol-style
   + native

Index: config/auto/env.pm
===================================================================
--- config/auto/env.pm  (revision 22786)
+++ config/auto/env.pm  (working copy)
@@ -9,6 +9,10 @@
 
 Determining if the C library has C<setenv()> and C<unsetenv()>.
 
+More information about these functions can be found at
+L<http://www.gnu.org/software/libc/manual/html_node/Environment-Access.html>,
+among other locations.
+
 =cut
 
 package auto::env;
@@ -32,8 +36,6 @@
 sub runstep {
     my ( $self, $conf ) = ( shift, shift );
 
-    my $verbose = $conf->options->get('verbose');
-
     my ( $setenv, $unsetenv ) = ( 0, 0 );
 
     cc_gen('config/auto/env/test_setenv.in');
@@ -49,6 +51,14 @@
     }
     cc_clean();
 
+    $self->_evaluate_env($conf, $setenv, $unsetenv);
+
+    return 1;
+}
+
+sub _evaluate_env {
+    my ($self, $conf, $setenv, $unsetenv) = @_;
+    my $verbose = $conf->options->get('verbose');
     $conf->data->set(
         setenv   => $setenv,
         unsetenv => $unsetenv
@@ -70,8 +80,6 @@
         print " (no) " if $verbose;
         $self->set_result('no');
     }
-
-    return 1;
 }
 
 1;

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