refactor: perft

Makefile

@@ -11,7 +11,7 @@ run:
 
 .PHONY: perft
 perft:
-	perftree ./perft.sh
+	perftree ./test/perft/perft.sh
 
 .PHONY: gen
 gen:

main.go

@@ -18,21 +18,6 @@ var (
 )
 
 func main() {
-	if len(os.Args) > 1 {
-		r, err := perft(os.Args[1:])
-		if err != nil {
-			fmt.Println(err)
-			os.Exit(1)
-		}
-
-		fmt.Println(r)
-		return
-	}
-
-	run()
-}
-
-func run() {
 	ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt)
 	defer stop()
 

perft.go → test/perft/perft.go

@@ -1,14 +1,31 @@
+// This package provides the capability to run perft tests.
 package main
 
 import (
 	"errors"
 	"fmt"
+	"os"
 	"strconv"
 	"strings"
 
 	"github.com/leonhfr/orca/chess"
 )
 
+func main() {
+	if len(os.Args) < 1 {
+		fmt.Println("expected arguments to be provided")
+		os.Exit(1)
+	}
+
+	r, err := perft(os.Args[1:])
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+
+	fmt.Println(r)
+}
+
 // perft expects the arguments to be depth, then fen,
 // and finally an optional space-separated move list.
 func perft(args []string) (chess.PerftResult, error) {