修复气站订单用户名称与合同上下文展示

backend/api/internal/logic/gas/gasorder_test.go

@@ -0,0 +1,37 @@
+// 功能描述：验证气站合同与配送订单展示查询的对象权限范围。
+// 版本：v1.0.0
+package gas
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/DATA-DOG/go-sqlmock"
+	"gorm.io/driver/postgres"
+	"gorm.io/gorm"
+)
+
+// TestScopedOrderDisplayQuery 验证订单用户名称直接按订单主键读取且查询受当前气站约束。
+func TestScopedOrderDisplayQuery(t *testing.T) {
+	connection, _, err := sqlmock.New()
+	if err != nil {
+		t.Fatalf("create SQL mock: %v", err)
+	}
+	t.Cleanup(func() { _ = connection.Close() })
+	databaseService, err := gorm.Open(postgres.New(postgres.Config{Conn: connection}), &gorm.Config{DryRun: true})
+	if err != nil {
+		t.Fatalf("open GORM database: %v", err)
+	}
+
+	statement := scopedOrderDisplayQuery(databaseService, 42).
+		Find(&[]gasOrderListDisplay{}).Statement.SQL.String()
+	for _, fragment := range []string{
+		"LEFT JOIN user_account AS order_user",
+		"user_account_display_name",
+		"gasorder_basic.gas_basic_id =",
+	} {
+		if !strings.Contains(statement, fragment) {
+			t.Fatalf("scoped order display SQL must include %q, got: %s", fragment, statement)
+		}
+	}
+}