如何在java中测试本地内部类方法？

public class MyClass {
    public class MyInnerClass {
        public String myMethod(String input) {
            return input.toUpperCase();
        }
    }
}

import org.junit.Test;
import static org.junit.Assert.assertEquals;

public class MyClassTest {
    @Test
    public void testMyMethod() {
        MyClass outer = new MyClass();
        MyClass.MyInnerClass inner = outer.new MyInnerClass();
        String input = "hello";
        String expected = "HELLO";
        String actual = inner.myMethod(input);
        assertEquals(expected, actual);
    }
}

   <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
       <version>4.13.2</version>
       <scope>test</scope>
    </dependency>
</dependencies>