diff --git a/core-java-modules/core-java-collections-list-2/src/test/java/com/baeldung/java/listInitialization/ListInitializationUnitTest.java b/core-java-modules/core-java-collections-list-2/src/test/java/com/baeldung/java/listInitialization/ListInitializationUnitTest.java
deleted file mode 100644
index 25f39e9a13..0000000000
--- a/core-java-modules/core-java-collections-list-2/src/test/java/com/baeldung/java/listInitialization/ListInitializationUnitTest.java
+++ /dev/null
@@ -1,59 +0,0 @@
-package com.baeldung.java.listInitialization;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
-
-import lombok.extern.java.Log;
-
-import org.junit.Assert;
-import org.junit.Test;
-
-@Log
-public class ListInitializationUnitTest {
-
-    @Test
-    public void givenAnonymousInnerClass_thenInitialiseList() {
-        List<String> cities = new ArrayList() {
-            {
-                add("New York");
-                add("Rio");
-                add("Tokyo");
-            }
-        };
-
-        Assert.assertTrue(cities.contains("New York"));
-    }
-
-    @Test
-    public void givenArraysAsList_thenInitialiseList() {
-        List<String> list = Arrays.asList("foo", "bar");
-
-        Assert.assertTrue(list.contains("foo"));
-    }
-
-    @Test(expected = UnsupportedOperationException.class)
-    public void givenArraysAsList_whenAdd_thenUnsupportedException() {
-        List<String> list = Arrays.asList("foo", "bar");
-
-        list.add("baz");
-    }
-
-    @Test
-    public void givenArraysAsList_whenCreated_thenShareReference() {
-        String[] array = { "foo", "bar" };
-        List<String> list = Arrays.asList(array);
-        array[0] = "baz";
-        Assert.assertEquals("baz", list.get(0));
-    }
-
-    @Test
-    public void givenStream_thenInitializeList() {
-        List<String> list = Stream.of("foo", "bar")
-            .collect(Collectors.toList());
-
-        Assert.assertTrue(list.contains("foo"));
-    }
-}
diff --git a/core-java-modules/core-java-collections-list-2/src/test/java/com/baeldung/java/listinitialization/ListInitializationUnitTest.java b/core-java-modules/core-java-collections-list-2/src/test/java/com/baeldung/java/listinitialization/ListInitializationUnitTest.java
new file mode 100644
index 0000000000..4b06621fef
--- /dev/null
+++ b/core-java-modules/core-java-collections-list-2/src/test/java/com/baeldung/java/listinitialization/ListInitializationUnitTest.java
@@ -0,0 +1,91 @@
+package com.baeldung.java.listinitialization;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import org.junit.Test;
+
+import lombok.extern.java.Log;
+
+@Log
+public class ListInitializationUnitTest {
+
+    @Test
+    public void givenAnonymousInnerClass_thenInitialiseList() {
+        List<String> cities = new ArrayList() {
+            {
+                add("New York");
+                add("Rio");
+                add("Tokyo");
+            }
+        };
+
+        assertTrue(cities.contains("New York"));
+    }
+
+    @Test
+    public void givenArraysAsList_thenInitialiseList() {
+        List<String> list = Arrays.asList("foo", "bar");
+
+        assertTrue(list.contains("foo"));
+    }
+
+    @Test(expected = UnsupportedOperationException.class)
+    public void givenArraysAsList_whenAdd_thenUnsupportedException() {
+        List<String> list = Arrays.asList("foo", "bar");
+
+        list.add("baz");
+    }
+
+    @Test
+    public void givenArraysAsList_whenUsingArrayListConstructor_thenWeCanAddOrRemove() {
+        List<String> list = new ArrayList<>(Arrays.asList("foo", "bar"));
+
+        list.add("baz");
+        assertEquals(List.of("foo", "bar","baz"), list);
+        
+        list.remove("baz");
+        assertEquals(List.of("foo", "bar"), list);
+    }
+
+    @Test
+    public void givenArraysAsList_whenCreated_thenShareReference() {
+        String[] array = { "foo", "bar" };
+        List<String> list = Arrays.asList(array);
+        array[0] = "baz";
+        assertEquals("baz", list.get(0));
+    }
+
+    @Test
+    public void givenIntNumbers_whenRequiredLong_thenCastAutomatically() {
+        int intNum = 42;
+        long longNum = intNum;
+
+        assertEquals(42L, longNum);
+    }
+
+    @Test
+    public void givenArrayAsList_whenRequiredLongList_thenGetExpectedResult() {
+        List<Long> listOfLongFixedSize = Arrays.asList(1L, 2L, 3L);
+        List<Long> listOfLong = new ArrayList<>(Arrays.asList(1L, 2L, 3L));
+
+        List<Long> expected = List.of(1L, 2L, 3L);
+
+        assertEquals(expected, listOfLongFixedSize);
+        assertEquals(expected, listOfLong);
+    }
+
+    @Test
+    public void givenStream_thenInitializeList() {
+        List<String> list = Stream.of("foo", "bar")
+            .collect(Collectors.toList());
+
+        assertTrue(list.contains("foo"));
+    }
+}
\ No newline at end of file