"" matches ""
"a" matches "a"
"?" matches "b"
"??" matches "bc"
"?c" matches "bc"
"b?" matches "bc"
"[a-z]" matches "b"
"*" matches "a"
"**" matches "a"
"*" matches ""
"*bc*hij" matches "abcdfghij"
"abc*" matches "abc"
"abc**" matches "abc"
"[!]]" matches "!"
"[!abc]" matches "d"
"*???" matches "abc"
"*???" matches "abcd"
"*?*" matches "abcd"
"*bc" matches "abc"
"*[a-e]" matches "d"
"[]abc]" matches "b"
"[z-a]" matches "-"
"[A-]" matches "-"
"[-a]" matches "-"
"[-[]" matches "-"
"[-]" matches "-"
"[!-b]" matches "a"
"[a-g]lorian" matches "florian"
"*???*" matches "123"

Credit: http://user.cs.tu-berlin.de/~schintke/references/wildcards/testwildcards.report