verify(negotiationResponse).haveCapabilitiy(cap3);
    }

    @Test
    @DisplayName("Test getSendBufferSize returns standard size")
    void testGetSendBufferSizeStandard() {
        // Arrange
        int expectedSize = 65536;
        when(negotiationResponse.getSendBufferSize()).thenReturn(expectedSize);

        // Act

Shinsuke Sugaya <******@****.***> 1755149504 +0900