[LEET-999] move test out of class

Author: fishercoder1534

leetcode-algorithms/src/main/java/com/stevesun/solutions/RemoveDuplicatesfromSortedList.java

@@ -1,7 +1,6 @@
 package com.stevesun.solutions;
 
 import com.stevesun.common.classes.ListNode;
-import com.stevesun.common.utils.CommonUtils;
 
 /**Given a sorted linked list, delete all duplicates such that each element appear only once.
 
@@ -21,15 +20,4 @@ public static ListNode deleteDuplicates(ListNode head) {
         }
         return ret.next;
     }
-
-    public static void main(String...strings){
-        ListNode head = new ListNode(1);
-        head.next = new ListNode(1);
-        head.next.next = new ListNode(2);
-        head.next.next.next = new ListNode(3);
-        head.next.next.next.next = new ListNode(3);
-        CommonUtils.printList(head);
-        ListNode result = deleteDuplicates(head);
-        CommonUtils.printList(result);
-    }
 }

leetcode-algorithms/src/test/java/com/stevesun/RemoveDuplicatesfromSortedListTest.java

@@ -0,0 +1,29 @@
+package com.stevesun;
+
+import com.stevesun.common.classes.ListNode;
+import com.stevesun.solutions.RemoveDuplicatesfromSortedList;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * Created by stevesun on 4/18/17.
+ */
+public class RemoveDuplicatesfromSortedListTest {
+
+    @Test
+    public void test1() {
+        ListNode head = new ListNode(1);
+        head.next = new ListNode(1);
+        head.next.next = new ListNode(2);
+        head.next.next.next = new ListNode(3);
+        head.next.next.next.next = new ListNode(3);
+
+        RemoveDuplicatesfromSortedList test = new RemoveDuplicatesfromSortedList();
+
+        ListNode expected = new ListNode(1);
+        expected.next = new ListNode(2);
+        expected.next.next = new ListNode(3);
+
+        Assert.assertEquals(expected, test.deleteDuplicates(head));
+    }
+}