--- /dev/null
+#!/usr/bin/perl -w
+
+# Test Test::Builder->reset;
+
+BEGIN {
+ if( $ENV{PERL_CORE} ) {
+ chdir 't';
+ @INC = ('../lib', 'lib');
+ }
+ else {
+ unshift @INC, 't/lib';
+ }
+}
+chdir 't';
+
+
+use Test::Builder;
+my $tb = Test::Builder->new;
+
+my %Original_Output;
+$Original_Output{$_} = $tb->$_ for qw(output failure_output todo_output);
+
+
+$tb->plan(tests => 14);
+$tb->level(0);
+
+# Alter the state of Test::Builder as much as possible.
+$tb->ok(1, "Running a test to alter TB's state");
+
+my $tmpfile = 'foo.tmp';
+
+$tb->output($tmpfile);
+$tb->failure_output($tmpfile);
+$tb->todo_output($tmpfile);
+END { 1 while unlink $tmpfile }
+
+# This won't print since we just sent output off to oblivion.
+$tb->ok(0, "And a failure for fun");
+
+$Test::Builder::Level = 3;
+
+$tb->exported_to('Foofer');
+
+$tb->use_numbers(0);
+$tb->no_header(1);
+$tb->no_ending(1);
+
+
+# Now reset it.
+$tb->reset;
+
+my $test_num = 2; # since we already printed 1
+# Utility testing functions.
+sub ok ($;$) {
+ my($test, $name) = @_;
+ my $ok = '';
+ $ok .= "not " unless $test;
+ $ok .= "ok $test_num";
+ $ok .= " - $name" if defined $name;
+ $ok .= "\n";
+ print $ok;
+ $test_num++;
+
+ return $test;
+}
+
+
+ok( !defined $tb->exported_to, 'exported_to' );
+ok( $tb->expected_tests == 0, 'expected_tests' );
+ok( $tb->level == 1, 'level' );
+ok( $tb->use_numbers == 1, 'use_numbers' );
+ok( $tb->no_header == 0, 'no_header' );
+ok( $tb->no_ending == 0, 'no_ending' );
+ok( fileno $tb->output == fileno $Original_Output{output},
+ 'output' );
+ok( fileno $tb->failure_output == fileno $Original_Output{failure_output},
+ 'failure_output' );
+ok( fileno $tb->todo_output == fileno $Original_Output{todo_output},
+ 'todo_output' );
+ok( $tb->current_test == 0, 'current_test' );
+ok( $tb->summary == 0, 'summary' );
+ok( $tb->details == 0, 'details' );
+
+$tb->no_ending(1);
+$tb->no_header(1);
+$tb->plan(tests => 14);
+$tb->current_test(13);
+$tb->level(0);
+$tb->ok(1, 'final test to make sure output was reset');