Fix bignum-0.21

From: "Jerry D. Hedden" <jdhedden@cpan.org>
Message-ID: <1ff86f510705091805n37c4137u16a35ca27810979f@mail.gmail.com>

p4raw-id: //depot/perl@31191

1 files changed, 24 insertions, 1 deletions

diff --git a/lib/bignum/t/option_l.t b/lib/bignum/t/option_l.t
index f5341830c9..cfa8033f22 100755
--- a/lib/bignum/t/option_l.t
+++ b/lib/bignum/t/option_l.t
@@ -1,5 +1,7 @@
 #!/usr/bin/perl -w
 
+# test the "l", "lib", "try" and "only" options:
+
 use Test::More;
 use strict;
 
@@ -8,19 +10,40 @@ BEGIN
   $| = 1;
   chdir 't' if -d 't';
   unshift @INC, '../lib';
-  plan tests => 12;
+  plan tests => 19;
   }
 
 use bignum;
 
+my @W;
+{
+# catch warnings:
+require Carp;
+no warnings 'redefine';
+*Carp::carp = sub { push @W, $_[0]; };
+}
+
 my $rc = eval ('bignum->import( "l" => "foo" );');
 is ($@,'');						# shouldn't die
+is (scalar @W, 1, 'one warning');
+like ($W[0], qr/fallback to Math::/, 'got fallback');
+
 $rc = eval ('bignum->import( "lib" => "foo" );');
 is ($@,'');						# ditto
+is (scalar @W, 2, 'two warnings');
+like ($W[1], qr/fallback to Math::/, 'got fallback');
+
+$rc = eval ('bignum->import( "try" => "foo" );');
+is ($@,'');						# shouldn't die
+$rc = eval ('bignum->import( "try" => "foo" );');
+is ($@,'');						# ditto
 
 $rc = eval ('bignum->import( "foo" => "bar" );');
 like ($@, qr/^Unknown option foo/i, 'died');			# should die
 
+$rc = eval ('bignum->import( "only" => "bar" );');
+like ($@, qr/fallback disallowed/i, 'died');			# should die
+
 # test that options are only lowercase (don't see a reason why allow UPPER)
 
 foreach (qw/L LIB Lib T Trace TRACE V Version VERSION/)