add missing mock command

internal/resource/mock_command_test.go

@@ -0,0 +1,17 @@
+// Copyright 2024 Matthew Rich <matthewrich.conf@gmail.com>. All rights reserved.
+
+package resource
+
+import (
+_	"fmt"
+_	"github.com/stretchr/testify/assert"
+_	"os"
+_	"strings"
+_	"testing"
+)
+
+type MockCommand Command
+
+func (m *MockCommand) Execute(value any) ([]byte, error) {
+	return nil, nil
+}