add a test for 94

fishercoder1534 · fishercoder1534 · commit df7c3b144cff · 2020-03-01T11:31:01.000-08:00
diff --git a/src/test/java/com/fishercoder/_94Test.java b/src/test/java/com/fishercoder/_94Test.java
@@ -12,12 +12,14 @@
 
 public class _94Test {
     private static _94.Solution1 solution1;
+    private static _94.Solution2 solution2;
     private static TreeNode root;
     private static List<Integer> inorder;
 
     @BeforeClass
     public static void setup() {
         solution1 = new _94.Solution1();
+        solution2 = new _94.Solution2();
     }
 
     @Test
@@ -35,4 +37,12 @@ public void test2() {
         CommonUtils.printList(inorder);
     }
 
+    @Test
+    public void test3() {
+        root = TreeUtils.constructBinaryTree(Arrays.asList(1, 2, 3, 4, null, 5, null, null, 6));
+        TreeUtils.printBinaryTree(root);
+        inorder = solution2.inorderTraversal(root);
+        CommonUtils.printList(inorder);
+    }
+
 }
