package engine

import (
	"strings"
	"testing"
)

func TestRenderer(t *testing.T) {
	r := NewRenderer()
	tmpl := "🚀 {{.symbol}} 开仓通知\n价格: {{.price}}"
	data := map[string]interface{}{"symbol": "BTC", "price": 65000}
	result, err := r.Render(tmpl, data)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if !strings.Contains(result, "BTC") || !strings.Contains(result, "65000") {
		t.Errorf("unexpected output: %s", result)
	}
}

func TestRenderer_Error(t *testing.T) {
	r := NewRenderer()
	_, err := r.Render("{{.nonexistent}}", map[string]interface{}{})
	if err == nil {
		t.Error("expected error for missing field, got nil")
	}
}