ThrowTest.java

package ch.akuhn.util;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.fail;

import org.junit.Test;

public class ThrowTest {

    @Test(expected = Exception.class)
    public void throwException() {
        // Throw checked exception without throws declaration
        Throw.exception(new Exception());
    }

    @Test(expected = RuntimeException.class)
    public void throwRuntimeException() {
        // Wraps checked exception into RuntimeException
        Throw.runtimeException(new Exception());
    }

    public void throwRuntimeException_1() {
        Exception cause = new Exception();
        try {
            Throw.runtimeException(cause);
            fail();
        } catch (RuntimeException ex) {
            assertNotSame(cause, ex);
            assertEquals(cause, ex.getCause());
        }
    }

    public void throwRuntimeException_2() {
        RuntimeException cause = new RuntimeException();
        try {
            Throw.runtimeException(cause);
            fail();
        } catch (RuntimeException ex) {
            assertEquals(cause, ex);
        }
    }

    public void throwRuntimeException_3() {
        Error cause = new Error();
        try {
            Throw.runtimeException(cause);
            fail();
        } catch (RuntimeException ex) {
            assertEquals(cause, ex);
        }
    }

}