Can anyone make class from these unit-test. I need a actual code to pass these tests.

import org.hamcrest.Matchers;

import static org.hamcrest.MatcherAssert.assertThat;

import static org.junit.jupiter.api.Assertions.assertThrows;

public abstract class NumberGuesserTest

{

protected void badGuess(final NumberGuesser guesser)

{

badGuess(guesser, 1, 0, "min (1) must be <= max (0)");

badGuess(guesser, 100, 1, "min (100) must be <= max (1)");

badGuess(guesser, 100, 99, "min (100) must be <= max (99)");

}

private void badGuess(final NumberGuesser guesser,

final int min,

final int max,

final String expectedMessage)

{

Throwable ex;

ex = assertThrows(IllegalArgumentException.class, () -> { guesser.guess(min, max); } );

assertThat(ex.getMessage(), Matchers.equalTo(expectedMessage));

}

}