package middleware

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

	"github.com/gin-gonic/gin"
)

func TestRateLimitByIPReturns429AfterWindowIsConsumed(t *testing.T) {
	gin.SetMode(gin.TestMode)
	r := gin.New()
	r.GET("/rate-test", RateLimitByIP(1, time.Minute), func(c *gin.Context) {
		c.Status(http.StatusNoContent)
	})
	first := httptest.NewRecorder()
	r.ServeHTTP(first, httptest.NewRequest(http.MethodGet, "/rate-test", nil))
	if first.Code != http.StatusNoContent {
		t.Fatalf("首个请求状态码 = %d", first.Code)
	}
	second := httptest.NewRecorder()
	r.ServeHTTP(second, httptest.NewRequest(http.MethodGet, "/rate-test", nil))
	if second.Code != http.StatusTooManyRequests {
		t.Fatalf("超限请求状态码 = %d，期望 429", second.Code)
	}
}