add test for 150

Author: fishercoder1534

src/test/java/com/fishercoder/_150Test.java

@@ -0,0 +1,22 @@
+package com.fishercoder;
+
+import com.fishercoder.solutions._150;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+public class _150Test {
+    private static _150.Solution1 solution1;
+
+    @BeforeClass
+    public static void setup() {
+        solution1 = new _150.Solution1();
+    }
+
+    @Test
+    public void test1() {
+        assertEquals(9, solution1.evalRPN(new String[]{"2", "1", "+", "3", "*"}));
+    }
+
+}