#371: Extract backoff calculation into private helper

lib/baza-rb.rb

@@ -549,6 +549,14 @@ def csrf
 
   private
 
+  # Calculate exponential backoff in seconds for a given attempt number.
+  #
+  # @param [Integer] attempt The attempt number (1-based)
+  # @return [Integer] The number of seconds to sleep
+  def backoff(attempt)
+    @pause * (2**attempt)
+  end
+
   # Stick host from X-Zerocracy-Host header if present.
   #
   # @param [Typhoeus::Response] ret The HTTP response containing headers
@@ -631,7 +639,7 @@ def retry_on(&)
       ret = yield
       if (ret.code == 429 || ret.code >= 499) && attempt < @retries
         attempt += 1
-        seconds = @pause * (2**attempt)
+        seconds = backoff(attempt)
         if ret.code == 429
           @loog.info("Server seems to be busy, will sleep for #{seconds} (attempt no.#{attempt})...")
         else

test/test_baza_live.rb

@@ -45,7 +45,7 @@ def test_live_full_cycle
     assert_predicate(LIVE.recent(n), :positive?)
     id = LIVE.recent(n)
     assert(
-      wait_for(10 * 60) do
+      wait_for(15 * 60) do
         sleep(5)
         LIVE.finished?(id)
       end,