package exporter

import (
    "strings"
    "testing"
    "server/internal/schema"
)

func TestBuildSQL_FieldOrderAndCount_YMT(t *testing.T) {
    wl := schema.AllWhitelist()
    req := BuildRequest{
        MainTable:  "order_info",
        Datasource: "ymt",
        Fields: []string{
            "order.order_number",
            "order.merchant_name",
            "merchant.name",
            "order.pay_amount",
        },
        Filters: map[string]interface{}{"type_eq": 2},
    }
    sql, _, err := BuildSQL(req, wl)
    if err != nil {
        t.Fatalf("build sql error: %v", err)
    }
    // count aliases
    parts := strings.Split(sql, " AS `")
    // first part is before first alias
    aliasCount := len(parts) - 1
    if aliasCount != len(req.Fields) {
        t.Fatalf("alias count %d != fields %d", aliasCount, len(req.Fields))
    }
}