diff --git a/bytes/regexp_test.go b/bytes/regexp_test.go
index d0d4583..a694586 100644
--- a/bytes/regexp_test.go
+++ b/bytes/regexp_test.go
@@ -7,7 +7,9 @@ func Todo(t *testing.T) {
 }
 
 func TestRegexp(t *testing.T) {
-	Todo(t)
+	t.Run("only searches the beginning of input", Todo)
+	t.Run("position is correct after match", Todo)
+	t.Run("fails on unexpected error", Todo)
 }
 
 func TestRuneReader(t *testing.T) {