feat: register MySQL instances in CloudDM

server/internal/service/delivery_test.go

@@ -1,6 +1,7 @@
 package service
 
 import (
+	"encoding/json"
 	"testing"
 	"time"
 
@@ -131,6 +132,38 @@ func TestAllocatePort(t *testing.T) {
 	}
 }
 
+func TestBuildCloudDMRegisterRequest(t *testing.T) {
+	req := buildCloudDMRegisterRequest(
+		model.DeploymentResult{ID: 42, InstanceName: "mysql-payment-prod", Host: "10.0.0.10", Port: 3306},
+		deliveryPayload{MySQLDeliveryInput: MySQLDeliveryInput{InstanceDesc: "支付生产 MySQL", Timezone: "Asia/Shanghai"}},
+		"secret",
+	)
+	if req.SourceSystem != "xinfra" || req.ResourceType != "MYSQL_INSTANCE" {
+		t.Fatalf("unexpected request metadata: %#v", req)
+	}
+	if req.ExternalResourceID != "mysql-instance:42" {
+		t.Fatalf("unexpected externalResourceId: %q", req.ExternalResourceID)
+	}
+	if req.DataSource.Host != "10.0.0.10:3306" || req.DataSource.Password != "secret" {
+		t.Fatalf("unexpected data source fields: %#v", req.DataSource)
+	}
+	if req.DataSource.ClientTimeZone != "Asia/Shanghai" || req.DataSource.ConnectionCharset != "utf8" {
+		t.Fatalf("unexpected time zone or charset: %#v", req.DataSource)
+	}
+	raw, err := json.Marshal(req)
+	if err != nil {
+		t.Fatalf("marshal CloudDM request: %v", err)
+	}
+	var decoded map[string]any
+	if err := json.Unmarshal(raw, &decoded); err != nil {
+		t.Fatalf("unmarshal CloudDM request: %v", err)
+	}
+	dataSource := decoded["dataSource"].(map[string]any)
+	if value, ok := dataSource["defaultSchema"]; !ok || value != nil {
+		t.Fatalf("defaultSchema must be present as null, got %#v", dataSource["defaultSchema"])
+	}
+}
+
 func TestRollbackExtraVarsTargetsOnlyTheAllocatedInstance(t *testing.T) {
 	task := &model.DeliveryTask{ID: "task-1", TargetHost: "db-01"}
 	payload := deliveryPayload{MySQLDeliveryInput: MySQLDeliveryInput{InstanceName: "mysql-a", DataDisk: "/disk1"}}