// Act
        return new SmbPipeOutputStream(handle, tree);
    }

    @ParameterizedTest
    @ValueSource(booleans = { true, false })
    @DisplayName("isOpen delegates to handle.isOpen")
    void isOpen_delegates(boolean state) throws Exception {
        // Arrange
        SmbPipeOutputStream out = newStream();
        when(handle.isOpen()).thenReturn(state);

        // Act
        boolean result = out.isOpen();