backend: cmd: Add unit test for buildHeadlampCFG configuration mapping

Signed-off-by: CygnusMaximillian <dprajjwal11@gmail.com>

Author: CygnusMaximillian

backend/cmd/server_config_test.go

@@ -0,0 +1,41 @@
+/*
+ Copyright 2025 The Kubernetes Authors.
+
+ 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 main
+
+import (
+	"testing"
+
+	"github.com/kubernetes-sigs/headlamp/backend/pkg/config"
+	"github.com/kubernetes-sigs/headlamp/backend/pkg/kubeconfig"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestBuildHeadlampCFG(t *testing.T) {
+	conf := &config.Config{
+		Port:        4444,
+		InsecureSsl: true,
+		ProxyURLs:   "http://proxy1,http://proxy2",
+	}
+	store := kubeconfig.NewContextStore()
+
+	headlampCFG := buildHeadlampCFG(conf, store)
+
+	assert.Equal(t, uint(4444), headlampCFG.Port)
+	assert.True(t, headlampCFG.Insecure)
+	assert.Equal(t, []string{"http://proxy1", "http://proxy2"}, headlampCFG.ProxyURLs)
+	assert.Equal(t, store, headlampCFG.KubeConfigStore)
+}