fix regression when timeout is marginal

See
tulios#1556

src/network/requestQueue/index.js

@@ -309,15 +309,12 @@ module.exports = class RequestQueue extends EventEmitter {
     // will be fine, and potentially fix up a new timeout if needed at that time.
     // Note that if we're merely "overloaded" by having too many inflight requests
     // we will anyways check the queue when one of them gets fulfilled.
-    let scheduleAt = this.throttledUntil - Date.now()
-    if (!this.throttleCheckTimeoutId) {
-      if (this.pending.length > 0) {
-        scheduleAt = scheduleAt > 0 ? scheduleAt : CHECK_PENDING_REQUESTS_INTERVAL
-      }
+    const timeUntilUnthrottled = this.throttledUntil - Date.now()
+    if (timeUntilUnthrottled >= 0 && !this.throttleCheckTimeoutId) {
       this.throttleCheckTimeoutId = setTimeout(() => {
         this.throttleCheckTimeoutId = null
         this.checkPendingRequests()
-      }, scheduleAt)
+      }, Math.max(timeUntilUnthrottled, CHECK_PENDING_REQUESTS_INTERVAL))
     }
   }
 }

src/network/requestQueue/index.spec.js

@@ -225,8 +225,8 @@ describe('Network > RequestQueue', () => {
       const before = Date.now()
       const clientSideThrottleTime = 1
       requestQueue.maybeThrottle(clientSideThrottleTime)
-      // Sleep until the marginal delay is passed before calling scheduleCheckPendingRequests()
-      await sleep(clientSideThrottleTime)
+
+      requestQueue.throttledUntil = Date.now() + clientSideThrottleTime
       requestQueue.scheduleCheckPendingRequests()
 
       const sentAt = await sendDone