test.sh: skip hidden files and example.txt

test.sh

@@ -27,6 +27,8 @@ run_solution() {
 	fi
 }
 
+shopt -s dotglob
+
 for n in $(seq 1 25); do
 	input=$YEAR/data/day$n.input
 	expected=$YEAR/data/day$n.expected
@@ -34,6 +36,12 @@ for n in $(seq 1 25); do
 	for solution in "$YEAR/day$n"/*; do
 		echo -n "$solution... "
 
+		case "${solution##*/}" in
+			example.txt)
+				echo SKIP
+				continue
+		esac
+
 		solution_output=$(mktemp)
 		trap "rm -f '$solution_output'" EXIT