testing work for guava ordering

guava/src/test/java/org/baeldung/guava/collections/GuavaOrderingExamplesTest.java

@@ -0,0 +1,29 @@
+package org.baeldung.guava.collections;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+import org.junit.Test;
+
+import com.google.common.collect.Ordering;
+
+public class GuavaOrderingExamplesTest {
+
+    // tests
+
+    @Test
+    public final void givenCollectionWithNulls_whenSortingWithNullsLast_thenNullsAreLast() {
+        final List<Integer> nums = Arrays.asList(3, 5, 4, null, 1, 2);
+        Collections.sort(nums, Ordering.natural().nullsLast());
+        System.out.println(nums);
+    }
+
+    @Test
+    public final void givenCollectionWithNulls_whenSortingWithNullsFirst_thenNullsAreFirst() {
+        final List<Integer> nums = Arrays.asList(3, 5, 4, null, 1, 2);
+        Collections.sort(nums, Ordering.natural().nullsFirst());
+        System.out.println(nums);
+    }
+
+}