tests done

Calculator.java

@@ -151,6 +151,8 @@ class Calculator{
                     memory = result;
                     calc.printAns(String.valueOf(result));
                     break;
+                    
+                    
                 }
             }
         }

MathMethodsTest.java

@@ -0,0 +1,70 @@
+
+
+import static org.junit.Assert.*;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * The test class MathMethodsTest.
+ *
+ * @author  (your name)
+ * @version (a version number or a date)
+ */
+public class MathMethodsTest
+{
+    /**
+     * Default constructor for test class MathMethodsTest
+     */
+    public MathMethodsTest()
+    {
+    }
+
+    /**
+     * Sets up the test fixture.
+     *
+     * Called before every test case method.
+     */
+    @Before
+    public void setUp()
+    {
+    }
+
+    /**
+     * Tears down the test fixture.
+     *
+     * Called after every test case method.
+     */
+    @After
+    public void tearDown()
+    {
+    }
+
+    @Test
+    public void squareTest()
+    {
+        assertEquals(16, MathMethods.square(4), 0.1);
+    }
+
+    @Test
+    public void inverseTest()
+    {
+        assertEquals(5, MathMethods.inverse(5), 0.1);
+    }
+
+    @Test
+    public void tangentTest()
+    {
+        assertEquals(-3.380515005246586, MathMethods.tangent(5), 0.1);
+    }
+
+    @Test
+    public void inverseTangentTest()
+    {
+        assertEquals(1.550798992821746, MathMethods.iTan(50), 0.1);
+    }
+}
+
+
+
+