Merge pull request eugenp#5360 from amit2103/BAEL-9460

lor6 · web-flow · commit d7dac62bfb24 · 2018-10-02T23:17:35.000+03:00
[BAEL-9460] - Added code examples of Add section in 'Comparison with &hellip;
diff --git a/core-java-8/src/test/java/com/baeldung/java8/Java8SortUnitTest.java b/core-java-8/src/test/java/com/baeldung/java8/Java8SortUnitTest.java
@@ -1,16 +1,18 @@
 package com.baeldung.java8;
 
-import com.baeldung.java8.entity.Human;
-import com.google.common.collect.Lists;
-import com.google.common.primitives.Ints;
-import org.junit.Assert;
-import org.junit.Test;
+import static org.hamcrest.Matchers.equalTo;
 
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.List;
+import java.util.stream.Collectors;
 
-import static org.hamcrest.Matchers.equalTo;
+import org.junit.Assert;
+import org.junit.Test;
+
+import com.baeldung.java8.entity.Human;
+import com.google.common.collect.Lists;
+import com.google.common.primitives.Ints;
 
 public class Java8SortUnitTest {
 
@@ -111,5 +113,22 @@ public final void givenInstanceMethod_whenSortingEntitiesByName_thenCorrectlySor
         humans.sort(Comparator.comparing(Human::getName));
         Assert.assertThat(humans.get(0), equalTo(new Human("Jack", 12)));
     }
+    
+    @Test
+    public final void givenStreamNaturalOrdering_whenSortingEntitiesByName_thenCorrectlySorted() {
+        final List<String> letters = Lists.newArrayList("B", "A", "C");
+        
+        final List<String> sortedLetters = letters.stream().sorted().collect(Collectors.toList());
+        Assert.assertThat(sortedLetters.get(0), equalTo("A"));
+    }
 
+    @Test
+    public final void givenStreamCustomOrdering_whenSortingEntitiesByName_thenCorrectlySorted() {
+        
+        final List<Human> humans = Lists.newArrayList(new Human("Sarah", 10), new Human("Jack", 12));
+        final Comparator<Human> nameComparator = (h1, h2) -> h1.getName().compareTo(h2.getName());
+        
+        final List<Human> sortedHumans = humans.stream().sorted(nameComparator).collect(Collectors.toList());
+        Assert.assertThat(sortedHumans.get(0), equalTo(new Human("Jack", 12)));
+    }
 }
