Added some tests

t/basics.t

@@ -0,0 +1,44 @@
+#!/usr/bin/perl -w
+
+use strict;
+use warnings FATAL => 'all';
+use Test::More tests => 10;
+
+use Config;
+
+use ExtUtils::Config;
+
+is(ExtUtils::Config->get('config_args'), $Config{config_args}, "'config_args' is the same for ExtUtils::Config");
+
+my $config = ExtUtils::Config->new;
+
+is($config->get('config_args'), $Config{config_args}, "'config_args' is the same for \$config");
+
+ok(!defined $config->get('nonexistent'), "'nonexistent' is nonexistent");
+
+is_deeply($config->all_config, \%Config, 'all_config is \%Config');
+
+{
+	my %myconfig = %Config;
+	$config->set('more', 'nomore');
+	$myconfig{more} = 'nomore';
+
+	is_deeply($config->values_set, { more => 'nomore' }, 'values_set is { more => \'nomore\'}');
+
+	is_deeply($config->all_config, \%myconfig, 'allconfig is myconfig');
+}
+
+$config->pop('more');
+
+is_deeply($config->all_config, \%Config, 'all_config is \%Config again');
+
+$config->push('more', 'more1');
+$config->push('more', 'more2');
+
+is($config->get('more'), 'more2', "'more' is now 'more2");
+$config->pop('more');
+is($config->get('more'), 'more1', "'more' is now 'more1");
+
+my $config2 = ExtUtils::Config->new(values => { more => 'more3'});
+
+is_deeply($config2->values_set, { more => 'more3' }, "\$config2 has 'more' set to 'more3'");