Bael 4464 (eugenp#11062)

arash691 · web-flow · commit cd09e5249512 · 2021-07-23T14:48:28.000+02:00
* BAEL-4464 : how to implement LRU-Cache in java codes added

* BAEL-4464 : how to implement LRU-Cache in java codes added - package named fixed

* BAEL-4464 : how to implement LRU-Cache in java codes added - package named changed

* BAEL-4464 : how to implement LRU-Cache in java codes added - unitTest fixed

* BAEL-4464 : issues 4,5 fixed.

* fixed some issues in BAEL-4464

* BAEL-4464 : some tips on unitTest fixed
diff --git a/data-structures/src/test/java/com/baeldung/lrucache/LRUCacheUnitTest.java b/data-structures/src/test/java/com/baeldung/lrucache/LRUCacheUnitTest.java
@@ -1,17 +1,10 @@
 package com.baeldung.lrucache;
 
-import com.baeldung.lrucache.Cache;
-import com.baeldung.lrucache.LRUCache;
-import org.hamcrest.core.AllOf;
-import org.junit.Before;
 import org.junit.Test;
-import java.util.*;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.stream.IntStream;
-
-import static org.hamcrest.core.Is.is;
 import static org.junit.Assert.*;
 
 public class LRUCacheUnitTest {
@@ -22,9 +15,9 @@ public void addSomeDataToCache_WhenGetData_ThenIsEqualWithCacheElement() {
         lruCache.put("1", "test1");
         lruCache.put("2", "test2");
         lruCache.put("3", "test3");
-        assertEquals(lruCache.get("1").get(), "test1");
-        assertEquals(lruCache.get("2").get(), "test2");
-        assertEquals(lruCache.get("3").get(), "test3");
+        assertEquals("test1", lruCache.get("1").get());
+        assertEquals("test2", lruCache.get("2").get());
+        assertEquals("test3", lruCache.get("3").get());
     }
 
     @Test
@@ -34,7 +27,7 @@ public void addDataToCacheToTheNumberOfSize_WhenAddOneMoreData_ThenLeastRecently
         lruCache.put("2", "test2");
         lruCache.put("3", "test3");
         lruCache.put("4", "test4");
-        assertEquals(lruCache.get("1").isPresent(), false);
+        assertFalse(lruCache.get("1").isPresent());
     }
 
     @Test
@@ -46,14 +39,13 @@ public void runMultiThreadTask_WhenPutDataInConcurrentToCache_ThenNoDataLost() t
         try {
             IntStream.range(0, size).<Runnable>mapToObj(key -> () -> {
                 cache.put(key, "value" + key);
-                System.out.println(Thread.currentThread().getName() + " " + key);
                 countDownLatch.countDown();
             }).forEach(executorService::submit);
             countDownLatch.await();
         } finally {
             executorService.shutdown();
         }
         assertEquals(cache.size(), size);
-        IntStream.range(0, size).forEach(i -> assertEquals(cache.get(i).get(), "value" + i));
+        IntStream.range(0, size).forEach(i -> assertEquals("value" + i, cache.get(i).get()));
     }
 }
