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diff --git a/‎core-java-collections/src/test/java/com/baeldung/list/arraylist/ClearVsRemoveAllTest.java‎
Lines changed: 0 additions & 38 deletions b/‎core-java-collections/src/test/java/com/baeldung/list/arraylist/ClearVsRemoveAllTest.java‎
Lines changed: 0 additions & 38 deletions
diff --git a/‎core-java-collections/src/test/java/com/baeldung/list/arraylist/ClearVsRemoveAllUnitTest.java‎
Lines changed: 40 additions & 0 deletions b/‎core-java-collections/src/test/java/com/baeldung/list/arraylist/ClearVsRemoveAllUnitTest.java‎
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+package com.baeldung.list.arraylist;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+/**
+ * Unit tests demonstrating differences between ArrayList#clear() and ArrayList#removeAll()
+ */
+class ClearVsRemoveAllUnitTest {
+
+    /*
+     * Tests
+     */
+    @Test
+    void givenArrayListWithElements_whenClear_thenListBecomesEmpty() {
+        Collection<Integer> collection = new ArrayList<>(Arrays.asList(1, 2, 3, 4, 5));
+
+        collection.clear();
+
+        assertTrue(collection.isEmpty());
+    }
+
+    @Test
+    void givenTwoArrayListsWithCommonElements_whenRemoveAll_thenFirstListMissElementsFromSecondList() {
+        Collection<Integer> firstCollection = new ArrayList<>(Arrays.asList(1, 2, 3, 4, 5));
+        Collection<Integer> secondCollection = new ArrayList<>(Arrays.asList(3, 4, 5, 6, 7));
+
+        firstCollection.removeAll(secondCollection);
+
+        assertEquals(Arrays.asList(1, 2), firstCollection);
+        assertEquals(Arrays.asList(3, 4, 5, 6, 7), secondCollection);
+    }
+
+}