Merge pull request #1865 from marianosimone/fix_1430_unicode_matches

only return Unicode match result when there is a match

lib/DDG/Goodie/Unicode.pm

@@ -41,7 +41,8 @@ handle sub {
 
     # Search term starts with "unicode "
     if ($term =~ UNICODE_RE) {
-        return unicode_lookup($1);
+        return unless my $result = unicode_lookup($1);
+        return $result;
     }
 
     return codepoint_description($term);

t/Unicode.t

@@ -30,6 +30,8 @@ ddg_goodie_test(
         'unicode white smiling face' => test_zci("\x{263A} U+263A WHITE SMILING FACE, decimal: 9786, HTML: ☺, UTF-8: 0xE2 0x98 0xBA, block: Miscellaneous Symbols"),
 
         '\x{2764}' => test_zci("\x{2764} U+2764 HEAVY BLACK HEART, decimal: 10084, HTML: ❤, UTF-8: 0xE2 0x9D 0xA4, block: Dingbats"),
+
+        'unicode unknown' => undef
 );
 
 done_testing;