Codewars #15 Bagels (4kyu)

#15 Bagels 

Here's a seemingly simple challenge. We're giving you a class called bagel, exactly as it appears below. All it really does is return an int, specifically 3.

public class Bagel {
    public final int getValue() {
        return 3;
    }
}

The catch? For the solution, we're testing that the result is equal to 4. But as a little hint, the solution to the this Kata is exactly the same as the example test cases.

통과조건...

import org.junit.Test;
import static org.junit.Assert.assertEquals;
import org.junit.runners.JUnit4;

public class BagelTest {

    @Test
    public void testBagel() {
        Bagel bagel = BagelSolver.getBagel();

        assertEquals(
            bagel.getValue() == 4,
            java.lang.Boolean.TRUE
        );
    }

}

...별짓을 다했다 리플랙션 , 프록시, bci

설마이걸까 했는데 -.- 으음 빡친다.

import java.lang.reflect.Field;
import java.lang.reflect.Modifier;

public class BagelSolver {

  public static Bagel getBagel() {
	  try {
		    Field f = Boolean.class.getField("TRUE");
		    Field modifiers = Field.class.getDeclaredField("modifiers");
		    modifiers.setAccessible(true);
		    modifiers.setInt(f, f.getModifiers() & ~Modifier.FINAL);
		    f.set(null, false);
		} catch (Exception e) {
			// TODO: handle exception
		}
    return new Bagel();
  }

}