add test for 1

Author: fishercoder1534

src/test/java/com/fishercoder/_1Test.java

@@ -0,0 +1,24 @@
+package com.fishercoder;
+
+import com.fishercoder.solutions._1;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import static org.junit.Assert.assertArrayEquals;
+
+public class _1Test {
+    private static _1.Solution1 solution1;
+    private static int[] nums;
+
+    @BeforeClass
+    public static void setup() {
+        solution1 = new _1.Solution1();
+    }
+
+    @Test
+    public void test1() {
+        nums = new int[]{2, 7, 11, 15};
+        assertArrayEquals(new int[]{0, 1}, solution1.twoSum(nums, 9));
+    }
+
+}