refactor(http): extract retry delay unit to variable

Extract hardcoded retry delay unit to a variable for better testability and flexibility. Update tests to use milliseconds for faster execution while maintaining the same behavior.

pkg/utils/http_retry.go

@@ -9,6 +9,8 @@ import (
 
 const maxRetries = 3
 
+var retryDelayUnit = time.Second
+
 func shouldRetry(statusCode int) bool {
 	return statusCode == http.StatusTooManyRequests ||
 		statusCode >= 500
@@ -34,7 +36,7 @@ func DoRequestWithRetry(client *http.Client, req *http.Request) (*http.Response,
 		}
 
 		if i < maxRetries-1 {
-			if err = sleepWithCtx(req.Context(), time.Second*time.Duration(i+1)); err != nil {
+			if err = sleepWithCtx(req.Context(), retryDelayUnit*time.Duration(i+1)); err != nil {
 				return nil, fmt.Errorf("failed to sleep: %w", err)
 			}
 		}

pkg/utils/http_retry_test.go

@@ -11,6 +11,9 @@ import (
 )
 
 func TestDoRequestWithRetry(t *testing.T) {
+	retryDelayUnit = time.Millisecond
+	t.Cleanup(func() { retryDelayUnit = time.Second })
+
 	testcases := []struct {
 		name           string
 		serverBehavior func(*httptest.Server) int
@@ -53,6 +56,7 @@ func TestDoRequestWithRetry(t *testing.T) {
 
 	for _, tc := range testcases {
 		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
 			attempts := 0
 			server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 				attempts++
@@ -91,6 +95,9 @@ func TestDoRequestWithRetry(t *testing.T) {
 }
 
 func TestDoRequestWithRetry_Delay(t *testing.T) {
+	retryDelayUnit = time.Millisecond
+	t.Cleanup(func() { retryDelayUnit = time.Second })
+
 	var start time.Time
 	delays := []time.Duration{}
 	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
@@ -124,5 +131,5 @@ func TestDoRequestWithRetry_Delay(t *testing.T) {
 	assert.Equal(t, http.StatusOK, resp.StatusCode)
 	resp.Body.Close()
 
-	assert.GreaterOrEqual(t, delays[2], time.Second)
+	assert.GreaterOrEqual(t, delays[2], time.Millisecond)
 }