assertEquals(5, n);
        verify(mockIn).readDirect(eq(b), eq(1), eq(3));
    }

    @Test
    @DisplayName("send delegates to output.writeDirect with args")
    void send_delegates_writeDirect() throws Exception {
        SmbPipeHandleImpl handle = newHandleWithBasicStubs(0, "\\\\pipe\\\\y");

        // Mock the stream directly
        SmbPipeOutputStream mockOut = mock(SmbPipeOutputStream.class);