Fixed test to advance time programmaticaly

Author: Dmitry Voronov

src/main/scala/io/iohk/ethereum/db/cache/SimpleLRU.scala

@@ -24,13 +24,13 @@ class SimpleLRU[K](maxElements: Int, ttlMillis: Long) {
     *   false - if not
     */
   def checkAndRefreshEntry(key: K): Boolean = inner.synchronized {
-    val existing = Option(inner.put(key, currentTime))
+    val existing = Option(inner.put(key, getCurrentTime))
     existing.exists(!tooOld(_))
   }
 
   // Override this to test
-  protected def currentTime: Long = System.currentTimeMillis()
+  protected def getCurrentTime: Long = System.currentTimeMillis()
 
-  private[this] def tooOld(time: Long) = time + ttlMillis < currentTime
+  private[this] def tooOld(time: Long) = time + ttlMillis < getCurrentTime
 
 }

src/main/scala/io/iohk/ethereum/jsonrpc/server/http/JsonRpcHttpServer.scala

@@ -54,7 +54,7 @@ trait JsonRpcHttpServer extends Json4sSupport with Logger {
       }
       .result()
 
-  val rateLimit = new RateLimit(config.rateLimit)
+  protected val rateLimit = new RateLimit(config.rateLimit)
 
   val route: Route = cors(corsSettings) {
     (path("healthcheck") & pathEndOrSingleSlash & get) {

src/test/scala/io/iohk/ethereum/db/cache/SimpleLRUSpec.scala

@@ -7,7 +7,7 @@ class SimpleLRUSpec extends AnyWordSpec {
   var time = 0L
 
   private object MockedLRU extends SimpleLRU[Int](10, 100) {
-    override protected def currentTime: Long = SimpleLRUSpec.this.time
+    override protected def getCurrentTime: Long = SimpleLRUSpec.this.time
   }
 
   "It" should {