assertNotNull(provider, "Should always return at least TCP provider");
        assertTrue(provider.isAvailable(), "Selected provider should be available");
    }

    @Test
    public void testIsRdmaAvailable() {
        assertTrue(RdmaProviderFactory.isRdmaAvailable(), "RDMA should be available (at least TCP fallback)");
    }

    @Test
    public void testGetAvailableProviders() {