Do refactoring for the following code, use @Before and @After (5 points) class X { }...

 

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Do refactoring for the following code, use @Before and @After (5 points) class X { } @Test public void tesAdd()) { } Calculator calculator= new Calculator(); assertEquals(calculator. add(2,3),5); System.out.println(" test is finihsed" ); @Test public void testSub() { Calculator calculator= new Calculator(); assertEquals (calculator.sub(3,2), 1); System.out.println("test is finihsed"); Do refactoring for the following code, use @Before and @After (5 points) class X { } @Test public void tesAdd()) { } Calculator calculator= new Calculator(); assertEquals(calculator. add(2,3),5); System.out.println(" test is finihsed" ); @Test public void testSub() { Calculator calculator= new Calculator(); assertEquals (calculator.sub(3,2), 1); System.out.println("test is finihsed");