@ParameterizedTest
    @DisplayName("getInflightRequests returns various counts")
    @ValueSource(ints = { 0, 1, 42, 1000 })
    void getInflightRequests_counts(int count) {
        when(transport.getInflightRequests()).thenReturn(count);
        assertEquals(count, transport.getInflightRequests());
        verify(transport).getInflightRequests();
    }

    void basicGetters() {
        assertEquals(address, transport.getRemoteAddress());
        assertNull(transport.getRemoteHostName(), "tconHostName starts null");
        assertEquals(0, transport.getInflightRequests());
        assertEquals(0, transport.getNumSessions());
    }

    @Test
    @DisplayName("isDisconnected / isFailed reflect socket and state")
    void connectionStateChecks() throws Exception {