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+#!/usr/bin/perl
+
+use Test::Most;
+
+use lib 't/lib';
+
+use_ok( 'Graphics::ColorNames', qw/ all_schemes hex2tuple tuple2hex / );
+
+ok my @schemes = all_schemes(), 'all_schemes';
+
+cmp_deeply( \@schemes, supersetof(qw/ X Test /), 'minimum set of schemes' );
+
+is_deeply [ hex2tuple('010203') ], [ 1, 2, 3 ], 'hex2tuple';
+
+is_deeply [ hex2tuple('ffeedd') ], [ 255, 238, 221 ], 'hex2tuple';
+
+is tuple2hex( 1, 2, 3 ) => '010203', 'tuple2hex';
+
+is tuple2hex( 255, 238, 221 ) => 'ffeedd', 'tuple2hex';
+
+done_testing;