[CMake] Adding Tests - Suggestions needed

[Richard Wackerbarth]

I'm working on a legacy Unix program that I need to port to multiple  
platforms.
I've now gotten it to compile in CMake on a number of the platforms  
and would like to add some regression tests before I start really  
messing things up.

The program was written to read part of its input from stdin. But I  
don't see how to source stdin from a file when I use ADD_TEST.
At the moment, I am using a template shell command.

CONFIGURE_FILE( ${CMAKE_CURRENT_SOURCE_DIR}/Test1Shell.in
   ${CMAKE_CURRENT_BINARY_DIR}/Test1Shell.sh )
ADD_TEST ( Test1
   /bin/sh
   ${CMAKE_CURRENT_BINARY_DIR}/Test1Shell.sh )

where Test1Shell.in is

#!/bin/sh

${PROJECT_BINARY_DIR}/MyProgramBeingTested \
   --using ${CMAKE_CURRENT_SOURCE_DIR}/Test1Database.txt \
   -o ${CMAKE_CURRENT_BINARY_DIR}/Test1Output.txt \
   <  ${CMAKE_CURRENT_SOURCE_DIR}/Test1TestData.txt

Is there a better way?

Second question...
In some tests, I want to verify that the output generated "matches" a  
reference copy.
If they were identical, "diff" would work. However, in this case,  
there are a few places where the date/time  or host name appear.
Can someone suggest a comparison program that would be easy to use  
and, importantly, express the comparison in a simple manner.

At the moment, I am using sed/awk to edit the output and thereby  
eliminate the variable part of the output before calling diff to do  
the comparison.