fix: added a error message.

Author: en-ken

kadai2/en-ken/kadai2/main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"fmt"
 	"os"
 
 	"github.com/gopherdojo/dojo6/kadai2/en-ken/cli"
@@ -13,5 +14,8 @@ func main() {
 		NewImageFIle: func(path string) (imgcnv.ImageFile, error) { return imgcnv.NewImageFile(path) },
 	}
 
-	cli.Execute(os.Args)
+	err := cli.Execute(os.Args)
+	if err != nil {
+		fmt.Printf("%v", err)
+	}
 }

kadai2/en-ken/kadai2/main_test.go

@@ -7,13 +7,13 @@ import (
 )
 
 func TestMain(m *testing.M) {
-	exec.Command("go", "build", "-o", "kadai1").Run()
+	exec.Command("go", "get", "github.com/gopherdojo/dojo6/kadai2/en-ken/kadai2").Run()
 	m.Run()
 }
 
 func TestMainSuccess(t *testing.T) {
 
-	cmdString := "./kadai1 ./testdata -input-ext .jpg -output-dir ./out -output-ext .png"
+	cmdString := "kadai2 ./testdata -input-ext .jpg -output-dir ./out -output-ext .png"
 	cmd := strings.Split(cmdString, " ")
 	err := exec.Command(cmd[0], cmd[1:]...).Run()
 	if err != nil {
@@ -23,7 +23,7 @@ func TestMainSuccess(t *testing.T) {
 
 func TestMainFailure(t *testing.T) {
 
-	cmdString := "./kadai1"
+	cmdString := "kadai2"
 	cmd := strings.Split(cmdString, " ")
 	err := exec.Command(cmd[0], cmd[1:]...).Run()
 	if err == nil {