refactor 23

fishercoder1534 · fishercoder1534 · commit 20bda00e0650 · 2020-01-08T08:09:06.000-08:00
diff --git a/src/main/java/com/fishercoder/common/utils/CommonUtils.java b/src/main/java/com/fishercoder/common/utils/CommonUtils.java
@@ -147,7 +147,7 @@ public static ListNode reverseList(ListNode head) {
 
     public static void printList(final ListNode head) {
         ListNode temp = head;
-        System.out.println("--------------------------------------------");
+        System.out.println("\n--------------------------------------------");
         while (temp != null) {
             System.out.print(temp.val);
             temp = temp.next;
diff --git a/src/test/java/com/fishercoder/_23Test.java b/src/test/java/com/fishercoder/_23Test.java
@@ -6,6 +6,8 @@
 import org.junit.BeforeClass;
 import org.junit.Test;
 
+import java.util.Arrays;
+
 public class _23Test {
     private static _23.Solution1 solution1;
     private static ListNode[] lists;
@@ -17,7 +19,10 @@ public static void setup() {
 
     @Test
     public void test1() {
-        lists = new ListNode[]{new ListNode(1), new ListNode(7), new ListNode(5)};
+        ListNode head1 = ListNode.createSinglyLinkedList(Arrays.asList(1, 3, 5, 7, 11));
+        ListNode head2 = ListNode.createSinglyLinkedList(Arrays.asList(2, 8, 12));
+        ListNode head3 = ListNode.createSinglyLinkedList(Arrays.asList(4, 6, 9, 10));
+        lists = new ListNode[]{head1, head2, head3};
         CommonUtils.printList(solution1.mergeKLists(lists));
     }
 
