feat: engine — template renderer, rule matcher, channel router

internal/engine/renderer_test.go

@@ -0,0 +1,27 @@
+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")
+	}
+}