ResolveSpec/pkg/middleware/sizelimit_test.go
2025-12-08 09:26:36 +02:00

127 lines
3.4 KiB
Go

package middleware
import (
"bytes"
"io"
"net/http"
"net/http/httptest"
"testing"
)
func TestRequestSizeLimiter(t *testing.T) {
// 1KB limit
limiter := NewRequestSizeLimiter(1024)
handler := limiter.Middleware(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// Try to read body
_, err := io.ReadAll(r.Body)
if err != nil {
http.Error(w, err.Error(), http.StatusRequestEntityTooLarge)
return
}
w.WriteHeader(http.StatusOK)
}))
// Small request (should succeed)
t.Run("SmallRequest", func(t *testing.T) {
body := bytes.NewReader(make([]byte, 512)) // 512 bytes
req := httptest.NewRequest("POST", "/test", body)
w := httptest.NewRecorder()
handler.ServeHTTP(w, req)
if w.Code != http.StatusOK {
t.Errorf("Small request failed: got %d, want %d", w.Code, http.StatusOK)
}
// Check header
if maxSize := w.Header().Get(MaxRequestSizeHeader); maxSize != "1024" {
t.Errorf("MaxRequestSizeHeader = %q, want %q", maxSize, "1024")
}
})
// Large request (should fail)
t.Run("LargeRequest", func(t *testing.T) {
body := bytes.NewReader(make([]byte, 2048)) // 2KB
req := httptest.NewRequest("POST", "/test", body)
w := httptest.NewRecorder()
handler.ServeHTTP(w, req)
if w.Code != http.StatusRequestEntityTooLarge {
t.Errorf("Large request should fail: got %d, want %d", w.Code, http.StatusRequestEntityTooLarge)
}
})
}
func TestRequestSizeLimiterDefault(t *testing.T) {
// Default limiter (10MB)
limiter := NewRequestSizeLimiter(0)
handler := limiter.Middleware(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
}))
req := httptest.NewRequest("POST", "/test", bytes.NewReader(make([]byte, 1024)))
w := httptest.NewRecorder()
handler.ServeHTTP(w, req)
if w.Code != http.StatusOK {
t.Errorf("Request failed: got %d, want %d", w.Code, http.StatusOK)
}
// Check default size
if maxSize := w.Header().Get(MaxRequestSizeHeader); maxSize != "10485760" {
t.Errorf("Default MaxRequestSizeHeader = %q, want %q", maxSize, "10485760")
}
}
func TestRequestSizeLimiterWithCustomSize(t *testing.T) {
limiter := NewRequestSizeLimiter(1024)
// Premium users get 10MB, regular users get 1KB
sizeFunc := func(r *http.Request) int64 {
if r.Header.Get("X-User-Tier") == "premium" {
return Size10MB
}
return 1024
}
handler := limiter.MiddlewareWithCustomSize(sizeFunc)(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
_, err := io.ReadAll(r.Body)
if err != nil {
http.Error(w, err.Error(), http.StatusRequestEntityTooLarge)
return
}
w.WriteHeader(http.StatusOK)
}))
// Regular user with large request (should fail)
t.Run("RegularUserLargeRequest", func(t *testing.T) {
body := bytes.NewReader(make([]byte, 2048))
req := httptest.NewRequest("POST", "/test", body)
w := httptest.NewRecorder()
handler.ServeHTTP(w, req)
if w.Code != http.StatusRequestEntityTooLarge {
t.Errorf("Regular user large request should fail: got %d, want %d", w.Code, http.StatusRequestEntityTooLarge)
}
})
// Premium user with large request (should succeed)
t.Run("PremiumUserLargeRequest", func(t *testing.T) {
body := bytes.NewReader(make([]byte, 2048))
req := httptest.NewRequest("POST", "/test", body)
req.Header.Set("X-User-Tier", "premium")
w := httptest.NewRecorder()
handler.ServeHTTP(w, req)
if w.Code != http.StatusOK {
t.Errorf("Premium user large request failed: got %d, want %d", w.Code, http.StatusOK)
}
})
}