1 files changed, 29 insertions, 0 deletions
diff --git a/helper/args_test.go b/helper/args_test.go
new file mode 100644
index 00000000..378c6dcc
--- /dev/null
+++ b/helper/args_test.go
@@ -0,0 +1,29 @@
+package helper_test
+
+import (
+	"errors"
+	"fmt"
+	"strings"
+	"testing"
+
+	"git.ophivana.moe/cat/fortify/helper"
+)
+
+func Test_argsFD_String(t *testing.T) {
+	argsOnce.Do(prepareArgs)
+
+	wantString := strings.Join(want, " ")
+	if got := argsWt.(fmt.Stringer).String(); got != wantString {
+		t.Errorf("String(): got %v; want %v",
+			got, wantString)
+	}
+}
+
+func TestNewCheckedArgs(t *testing.T) {
+	args := []string{"\x00"}
+	if _, err := helper.NewCheckedArgs(args); !errors.Is(err, helper.ErrContainsNull) {
+		t.Errorf("NewCheckedArgs(%q) error = %v, wantErr %v",
+			args,
+			err, helper.ErrContainsNull)
+	}
+}