package reverseproxy

import (
	"context"
	"net/http/httptest"
	"testing"

	"github.com/caddyserver/caddy/v2/modules/caddyhttp"
)

func TestAddForwardedHeadersNonIP(t *testing.T) {
	h := Handler{}

	// Simulate a request with a non-IP remote address (e.g. SCION, abstract socket, or hostname)
	req := httptest.NewRequest("GET", "/", nil)
	req.RemoteAddr = "my-weird-network:12345"

	// Mock the context variables required by Caddy.
	// We need to inject the variable map manually since we aren't running the full server.
	vars := map[string]interface{}{
		caddyhttp.TrustedProxyVarKey: false,
	}
	ctx := context.WithValue(req.Context(), caddyhttp.VarsCtxKey, vars)
	req = req.WithContext(ctx)

	// Execute the unexported function
	err := h.addForwardedHeaders(req)

	// Expectation: No error should be returned for non-IP addresses.
	// The function should simply skip the trusted proxy check.
	if err != nil {
		t.Errorf("expected no error for non-IP address, got: %v", err)
	}
}