assertEquals("max size failed", ex.getMessage());
        verify(handle).getMaximumBufferSize();
    }

    @Test
    @DisplayName("areSignaturesActive(): returns configured boolean true")
    void areSignaturesActive_true() throws Exception {
        // Arrange
        when(handle.areSignaturesActive()).thenReturn(true);

        // Act
        boolean result = handle.areSignaturesActive();

        // Assert