test: added for the options/root.go (#638)

Signed-off-by: Rahul Vishwakarma <rahulvs2809@gmail.com>

Author: manzil-infinity180

options/root_test.go

@@ -0,0 +1,55 @@
+// Copyright 2025 The Witness Contributors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package options
+
+import (
+	"testing"
+
+	"github.com/spf13/cobra"
+	"github.com/stretchr/testify/assert"
+)
+
+// Test RootOptions.AddFlags method
+func TestRootOptions_AddFlags(t *testing.T) {
+	cmd := &cobra.Command{
+		Use: "test",
+	}
+
+	ro := &RootOptions{}
+	ro.AddFlags(cmd)
+
+	// Test presence of flags
+	flags := []string{
+		"config",
+		"log-level",
+		"debug-cpu-profile-file",
+		"debug-mem-profile-file",
+	}
+
+	for _, name := range flags {
+		flag := cmd.PersistentFlags().Lookup(name)
+		assert.NotNil(t, flag, "Flag '%s' should be added", name)
+	}
+
+	// Test flag defaults
+	assert.Equal(t, ".witness.yaml", cmd.PersistentFlags().Lookup("config").DefValue, "Default config path should be set correctly")
+	assert.Equal(t, "info", cmd.PersistentFlags().Lookup("log-level").DefValue, "Default log-level should be 'info'")
+	assert.Equal(t, "", cmd.PersistentFlags().Lookup("debug-cpu-profile-file").DefValue, "Default CPU profile file should be empty")
+	assert.Equal(t, "", cmd.PersistentFlags().Lookup("debug-mem-profile-file").DefValue, "Default memory profile file should be empty")
+
+	// Test flag shorthand
+	assert.Equal(t, "c", cmd.PersistentFlags().Lookup("config").Shorthand, "Config flag should have shorthand 'c'")
+	assert.Equal(t, "l", cmd.PersistentFlags().Lookup("log-level").Shorthand, "Log-level flag should have shorthand 'l'")
+}