add test for 90

Author: fishercoder1534

src/main/java/com/fishercoder/solutions/_90.java

@@ -26,7 +26,7 @@
 public class _90 {
 
     public static class Solution1 {
-        public static List<List<Integer>> subsetsWithDup(int[] nums) {
+        public List<List<Integer>> subsetsWithDup(int[] nums) {
             List<List<Integer>> result = new ArrayList();
             List<Integer> empty = new ArrayList();
             result.add(empty);

src/test/java/com/fishercoder/_90Test.java

@@ -0,0 +1,35 @@
+package com.fishercoder;
+
+import com.fishercoder.common.utils.CommonUtils;
+import com.fishercoder.solutions._90;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+public class _90Test {
+    private static _90.Solution1 solution1;
+    private static _90.Solution2 solution2;
+    private static _90.Solution3 solution3;
+
+    @BeforeClass
+    public static void setup() {
+        solution1 = new _90.Solution1();
+        solution2 = new _90.Solution2();
+        solution3 = new _90.Solution3();
+    }
+
+    @Test
+    public void test1() {
+        CommonUtils.printListList(solution1.subsetsWithDup(new int[]{1, 2, 2}));
+    }
+
+    @Test
+    public void test2() {
+        CommonUtils.printListList(solution2.subsetsWithDup(new int[]{1, 2, 2}));
+    }
+
+    @Test
+    public void test3() {
+        CommonUtils.printListList(solution3.subsetsWithDup(new int[]{1, 2, 2}));
+    }
+
+}