test-ctype: add test for is_pathspec_magic

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/test-ctype.c b/test-ctype.c
index b4d1f74..707a821 100644
--- a/test-ctype.c
+++ b/test-ctype.c
@@ -36,6 +36,7 @@
 	TEST_CLASS(isalnum, LOWER UPPER DIGIT);
 	TEST_CLASS(is_glob_special, "*?[\\");
 	TEST_CLASS(is_regex_special, "$()*+.?[\\^{|");
+	TEST_CLASS(is_pathspec_magic, "!\"#%&',-/:;<=>@_`~");
 
 	return rc;
 }