@Override
    public String toString() {
        return "CmdbContext{" + "consumer=" + consumer + ", providers=" + providers + '}';
    }
@Test
    void testToString() {
        CmdbContext<Instance> cmdbContext = new CmdbContext<>();
        cmdbContext.setProviders(Collections.singletonList(new CmdbContext.CmdbInstance<>()));
        cmdbContext.setConsumer(new CmdbContext.CmdbInstance<>());
        System.out.println(cmdbContext.toString());
        assertEquals(
                "CmdbContext{consumer=CmdbInstance{entity=null, instance=null}, providers=[CmdbInstance{entity=null, instance=null}]}",
                cmdbContext.toString());
    }