feat: kubesphere 4.0 (#6115)

* feat: kubesphere 4.0

Signed-off-by: ci-bot <ci-bot@kubesphere.io>

* feat: kubesphere 4.0

Signed-off-by: ci-bot <ci-bot@kubesphere.io>

---------

Signed-off-by: ci-bot <ci-bot@kubesphere.io>
Co-authored-by: ks-ci-bot <ks-ci-bot@example.com>
Co-authored-by: joyceliu <joyceliu@yunify.com>

pkg/config/config_test.go

@@ -0,0 +1,88 @@
+/*
+ * Please refer to the LICENSE file in the root directory of the project.
+ * https://github.com/kubesphere/kubesphere/blob/master/LICENSE
+ */
+
+package config
+
+import (
+	"fmt"
+	"os"
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+	"gopkg.in/yaml.v3"
+	"kubesphere.io/utils/s3"
+
+	"kubesphere.io/kubesphere/pkg/apiserver/auditing"
+	"kubesphere.io/kubesphere/pkg/apiserver/authentication"
+	"kubesphere.io/kubesphere/pkg/apiserver/authorization"
+	"kubesphere.io/kubesphere/pkg/controller/options"
+	"kubesphere.io/kubesphere/pkg/models/composedapp"
+	"kubesphere.io/kubesphere/pkg/models/terminal"
+	"kubesphere.io/kubesphere/pkg/multicluster"
+	"kubesphere.io/kubesphere/pkg/simple/client/cache"
+	"kubesphere.io/kubesphere/pkg/simple/client/k8s"
+)
+
+func newTestConfig() (*Config, error) {
+	var conf = &Config{
+		KubernetesOptions:     k8s.NewKubernetesOptions(),
+		CacheOptions:          cache.NewCacheOptions(),
+		AuthorizationOptions:  authorization.NewOptions(),
+		AuthenticationOptions: authentication.NewOptions(),
+		MultiClusterOptions:   multicluster.NewOptions(),
+		AuditingOptions:       auditing.NewAuditingOptions(),
+		TerminalOptions:       terminal.NewOptions(),
+		TelemetryOptions:      options.NewTelemetryOptions(),
+		HelmExecutorOptions:   options.NewHelmExecutorOptions(),
+		ExtensionOptions:      options.NewExtensionOptions(),
+		S3Options:             s3.NewS3Options(),
+		KubeSphereOptions:     options.NewKubeSphereOptions(),
+		ComposedAppOptions:    &composedapp.Options{},
+		ExperimentalOptions:   NewExperimentalOptions(),
+	}
+	return conf, nil
+}
+
+func saveTestConfig(t *testing.T, conf *Config) {
+	content, err := yaml.Marshal(conf)
+	if err != nil {
+		t.Fatalf("error marshal config. %v", err)
+	}
+	err = os.WriteFile(fmt.Sprintf("%s.yaml", defaultConfigurationName), content, 0640)
+	if err != nil {
+		t.Fatalf("error write configuration file, %v", err)
+	}
+}
+
+func cleanTestConfig(t *testing.T) {
+	file := fmt.Sprintf("%s.yaml", defaultConfigurationName)
+	if _, err := os.Stat(file); os.IsNotExist(err) {
+		t.Log("file not exists, skipping")
+		return
+	}
+
+	err := os.Remove(file)
+	if err != nil {
+		t.Fatalf("remove %s file failed", file)
+	}
+
+}
+
+func TestGet(t *testing.T) {
+	conf, err := newTestConfig()
+	if err != nil {
+		t.Fatal(err)
+	}
+	saveTestConfig(t, conf)
+	defer cleanTestConfig(t)
+
+	conf2, err := TryLoadFromDisk()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if diff := cmp.Diff(conf, conf2); diff != "" {
+		t.Fatal(diff)
+	}
+}