test-expected-and-timeout-junit5.java

import org.junit.jupiter.api.Test;

import java.time.Duration;

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

class JUnit5Test {

    @Test
    void shouldThrowRuntimeException() {
        assertThrows(RuntimeException.class, () -> {
            throw new RuntimeException("Exception met");
        });
    }

    @Test
    void shouldTimeoutAfter1Milliseconds() {
        assertTimeout(Duration.ofMillis(1L), () -> Thread.sleep(500));
    }
}