-=-=-=-=-=- EST Warning -=-=-=-=-=-
a non-fatal message: notice we can use printf style formatting
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
-=-=-=-=-=- EST Error -=-=-=-=-=-
A fatal error, this should be caught
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
error caught!
-=-=-=-=-=- EST IO Error -=-=-=-=-
Unable to open file, as expected - No such file or directory
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
error caught!
In error throwing function: normal
-=-=-=-=-=- EST Error -=-=-=-=-=-
This error is expected: normal
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
error caught!
In error throwing function: silent
error caught!
error message was 'This error is expected: silent'