public DiscoveryDataChangedEvent(final String key, final String value, final Event event) {
        this.key = key;
        this.value = value;
        this.event = event;
    }
@Test
    public void testDiscoveryDataChangedEvent() {
        String key = "key";
        String value = "value";
        DiscoveryDataChangedEvent discoveryDataChangedEvent = new DiscoveryDataChangedEvent(key, value, event);
        Assertions.assertEquals(key, discoveryDataChangedEvent.getKey());
        Assertions.assertEquals(value, discoveryDataChangedEvent.getValue());
        Assertions.assertEquals(event, discoveryDataChangedEvent.getEvent());
    }